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Management and support

IT Support Specialist timeline

How the field of a IT Support Specialist got here: the sourced milestones from every published course of this career, on one axis.

1936 to 2025

216 milestones across 20 courses

  • Core
  • Supporting
  • Specialization

The axis stretches toward recent years, where most milestones fall. Bars count milestones per year; dots are single milestones.

Before 1990

49 milestones

  1. 1936

    Turing machine

    Alan Turing's hypothetical machine that manipulates symbols on a tape formalises the notion of a computable function, defining the theoretical basis of every modern computer.

  2. 1937

    Shannon's logical circuit thesis

    Claude Shannon shows that electrical switching circuits can realise Boolean algebra, directly linking binary logic to the relays and later transistors of computing hardware.

  3. 1945

    ENIAC

    The Electronic Numerical Integrator and Computer, a general-purpose electronic digital computer using vacuum tubes, is completed at the University of Pennsylvania.

  4. 1947 Dec

    Transistor invented at Bell Labs

    John Bardeen, Walter Brattain and William Shockley demonstrate the point-contact transistor, replacing bulky vacuum tubes and shrinking computing hardware.

  5. 1950

    Five Whys introduced at Toyota

    Taiichi Ohno introduced the Five Whys technique at Toyota as a way to push past a symptom to the underlying cause of a manufacturing error by asking "why" repeatedly. It became the "why" half of the what/where/why narrowing technique this course teaches.

  6. 1951

    UNIVAC I delivered

    The UNIVAC I, the first commercial electronic computer built for business and government use rather than research, is delivered to the US Census Bureau.

  7. 1956

    First magnetic-disk drive

    IBM ships the IBM 350 as part of the RAMAC system, the first commercial random-access disk storage, introducing direct-access storage to data processing.

  8. 1957

    FORTRAN compiler

    John Backus and colleagues release FORTRAN, the first widely used high-level programming language, letting programs be written far above raw machine code.

  9. 1958 Sep

    Integrated circuit

    Jack Kilby at Texas Instruments builds the first working integrated circuit, placing multiple transistors on a single piece of semiconductor.

  10. 1960

    Hypothetico-deductive model formalized in science

    The hypothetico-deductive model — form hypotheses from observations, test them, discard what fails — was formalized as the method of science. Google's SRE book later framed systems troubleshooting as exactly this method applied to a running system.

  11. 1964 Apr

    IBM System/360

    IBM announces the System/360 family, a single compatible architecture spanning small to large machines, standardising mainframe computing.

  12. 1968 Dec 9

    NLS demonstrates remote interactive computing

    Douglas Engelbart's presentation linked interactive input and display technology with remote collaborators, establishing concepts later used in screen sharing and remote assistance.

  13. 1969

    ARPANET connects its first four hosts

    The initial ARPANET connected four host computers. It demonstrated packet-switched networking between independently located systems.

  14. 1969

    Unix work begins at Bell Labs

    Bell Labs records the start of Unix work in 1969. Its process and file-oriented model became a source lineage for later Unix and Unix-like systems.

  17. 1971

    UNIX becomes operational

    The Bell Labs retrospective dates UNIX operation to 1971 and describes its interactive model, shell, redirection, and pipes. Those components established the command-composition pattern used by later shells.

  19. 1973

    Ethernet is developed at Xerox PARC

    Ethernet introduced a local-network technology that became a dominant link-layer technology for computers and workstations. It separated local frame delivery from wider-area internetworking.

  21. 1973

    Unix is rewritten in C

    Bell Labs records that Unix was rewritten in C in 1973. The change made the system more portable across hardware than an assembly-only implementation.

  22. 1974 Dec

    RFC 675 specifies Internet TCP

    RFC 675 described an early Internet TCP design with connections, sockets, sequencing, and flow-control concepts. It established a transport-layer model above packet switching.

  23. 1975 Jan

    Altair 8800

    The Altair 8800 microcomputer kits go on sale, sparking the hobbyist personal-computer movement and prompting a wave of software development.

  24. 1977

    BSD distribution begins

    The Computer History Museum's Unix history records the Berkeley Software Distribution lineage. BSD became a separate source lineage for systems such as FreeBSD and parts of Darwin.

  25. 1977 Jun

    Apple II

    Apple ships the Apple II, one of the first mass-produced microcomputers sold as a complete consumer product with keyboard and colour graphics.

  26. 1978 Jul

    The UNIX Shell is documented in Bell System Technical Journal

    Stephen Bourne's UNIX Shell paper appears in the July–August 1978 Bell System Technical Journal issue. It records the shell as a distinct command-language layer in the UNIX environment.

  27. 1981 Aug

    IBM PC 5150 establishes the open expansion-slot architecture

    IBM released the 5150 with published technical documentation and expansion slots that let third parties build compatible hardware and software. That open, slot-based architecture, rather than any single component, is what later PC hardware standards extended.

  29. 1981 Sep

    RFC 791 specifies IPv4

    RFC 791 published the Internet Protocol specification for IPv4. It provided the packet format and forwarding model that made inter-network delivery a distinct layer.

  31. 1983 Jan

    ARPANET transitions from NCP to TCP/IP

    ARPANET changed its host protocol from NCP to TCP/IP in a coordinated transition. The change made the TCP/IP suite the common basis for host communication on that network.

  32. 1983 Jan

    TCP/IP becomes the ARPANET standard

    The ARPANET switches to the TCP/IP protocol suite on 1 January, consolidating the networking standard that defines the modern Internet.

  33. 1983 Sep

    GNU Project announced

    The GNU Project announcement proposes a complete free Unix-compatible software system. GNU userland later became a major component of many Linux distributions.

  34. 1983 Nov

    RFC 882 defines the original DNS concepts

    RFC 882 described a distributed domain system with a hierarchical tree, referrals, caching, and timeouts. It established the architectural model that replaced a single host table.

  35. 1983 Nov

    RFC 882 proposes the Domain Name System

    RFC 882 described a tree-structured domain name space and name servers. It moved name-to-resource lookup beyond a single shared host table.

  37. 1985

    First large-scale software audit lawsuits

    Software publishers began pursuing organizations for unlicensed use, creating the legal and financial pressure that made systematic software asset tracking a board-level concern rather than an IT convenience.

  38. 1985 Nov 20

    Windows 1.0 reaches retail

    Windows 1.0 added a graphical environment and mouse-driven applications above MS-DOS. Users could switch among included programs without ending each one.

  40. 1986

    pcAnywhere brings remote control to DOS personal computers

    Dynamic Microprocessor Associates released the first pcAnywhere for DOS, bringing host-and-remote control to the personal-computer market.

  41. 1987 Nov

    RFC 1034 publishes DNS domain concepts

    RFC 1034 documented DNS as a distributed database with hierarchical names and resource records. It addressed the scaling limits of distributing a single HOSTS.TXT file.

  42. 1987 Nov

    RFC 1034 revises DNS concepts and facilities

    RFC 1034 replaced the earlier concepts document and described the namespace, delegation, zones, resolvers, and caching model. These remain the foundation for tracing authority today.

  43. 1987 Nov

    RFC 1035 specifies DNS messages and core records

    RFC 1035 replaced the earlier implementation document with the protocol format and record definitions. It made the query, response sections, flags, and core resource records interoperable.

  44. 1988

    IEEE POSIX.1 defines a portable operating-system interface

    IEEE Std 1003.1-1988 established the POSIX system interface baseline. Portability work subsequently treated command environments as a defined interface instead of a property of one UNIX variant.

  45. 1988 Nov 25

    X.500 directory recommendation approved

    ITU approved X.500 as an overview of directory concepts, models, and services. Directory standards gave distributed identity records a common information and service model.

  46. 1989

    First ITIL book is published

    The first ITIL book established the published guidance that later editions consolidated and reorganized.

  47. 1989

    First ITIL book published

    The first ITIL publication began a documented body of service-management guidance. Incident handling became part of a wider operating model for IT services.

  48. 1989

    First ITIL publications appear

    The first ITIL guidance was published for managing government IT operations. It established a reusable body of service-management guidance that later editions broadened.

1990s

30 milestones

  1. 1990

    Windows 3.0 expands software and hardware adoption

    Windows 3.0 improved performance and graphics, and more software vendors developed Windows applications. Hardware vendors also began shipping computers with Windows installed.

  3. 1991

    The World Wide Web becomes publicly available

    The Web added a hypertext application on the Internet, reinforcing the distinction between the underlying network and a service that uses it.

  4. 1991 Aug

    Linux kernel project announced

    Linus Torvalds announced a free kernel project in 1991. Distributions later assembled that kernel with user-space software and release policy.

  6. 1992

    IEEE POSIX.2 supplies the shell and utilities base documents

    The POSIX.1-2024 rationale identifies IEEE Std 1003.2-1992 as the base document for the standardized utility set. Shell syntax and utility conventions therefore gained a shared portability target.

  8. 1992 Oct

    NIST researchers publish a general RBAC model

    Ferraiolo and Kuhn presented a formal role-based access control model in which access is mediated through roles. The model generalized earlier application-specific role controls.

  11. 1993 Aug

    Debian Project founded

    Debian records its founding in 1993. It is an early example of a Linux distribution governed as a project with its own packaging and release policy.

  12. 1993 Sep

    RFC 1519 introduces CIDR addressing strategy

    RFC 1519 proposed classless inter-domain routing to slow routing-table growth and improve address allocation. Prefix length became central to route aggregation and longest-match forwarding.

  13. 1993 Nov

    PCI bus standardizes device connection

    Intel's PCI bus gave hardware makers one standardized way to connect expansion devices to a computer, replacing a mix of incompatible earlier bus designs. PC Magazine named it Product of the Year for 1993.

  14. 1993 Dec

    FreeBSD Project begins

    The FreeBSD Project records its 1993 origin. It developed an integrated BSD base system rather than a Linux distribution around an external kernel.

  15. 1994

    ITIL v1 published by the UK government

    The IT Infrastructure Library introduced a process-oriented view of IT service management. Configuration management and asset management emerged as linked but distinct disciplines, a relationship this course defines and preserves.

  16. 1995

    Service management code of practice published

    British service-management standards work produced a code of practice. This created a standards path alongside the growing ITIL guidance.

  17. 1995 Apr

    NSFNET backbone service ends

    Internet backbone traffic shifted toward commercial providers and interconnected networks rather than a single federally funded backbone.

  18. 1995 Jul

    Intel releases the ATX specification

    ATX standardized motherboard dimensions, mounting points, the I/O panel, and power-supply connectors, replacing a fragmented set of earlier case and board designs. It remains the dominant desktop form factor this course's compatibility rules assume as a default.

  19. 1995 Aug 24

    Windows 95 establishes the modern desktop pattern

    Windows 95 introduced the Start button, taskbar, longer filenames, and broader Plug and Play hardware support. These controls became durable parts of everyday Windows operation.

  20. 1995 Dec

    RFC 1883 specifies IPv6

    RFC 1883 defined IPv6 as an IPv4 successor with 128-bit addresses and a revised header design. It put address-space growth and protocol evolution into the Internet-layer roadmap.

  21. 1996 Jan

    USB 1.0 specification published

    A group including Compaq, IBM, Intel, and Microsoft published the first USB specification, defining one general-purpose interface for peripherals in place of the separate serial, parallel, and keyboard ports each device previously needed.

  22. 1996 Aug

    RFC 1996 adds DNS NOTIFY

    DNS NOTIFY let a primary server signal that zone data changed so secondary servers could check for updates. It reduced reliance on waiting for the next refresh interval after a change.

  23. 1997

    X/Open Issue 5 publishes Commands and Utilities

    The Open Group historical standards record lists Commands and Utilities Issue 5 in 1997 as part of the Single UNIX Specification Version 2. It continued a common command interface across conforming systems.

  24. 1998

    VNC and Remote Framebuffer are publicly documented

    The VNC creators published a platform-independent design that kept application state at a display server and connected lightweight viewers.

  26. 1998 Sep

    ICANN is formed

    ICANN began coordinating Internet unique identifiers, including the DNS and IP address allocation functions.

  28. 1999

    BlackBerry Enterprise Server launches

    Research In Motion shipped the first server built specifically to manage a fleet of BlackBerry devices, pushing email and calendar data from Microsoft Exchange and later supporting remote wipe and policy enforcement. It gave enterprises the first practical console for managing mobile devices centrally.

  29. 1999 Mar

    RFC 2308 standardizes negative caching

    RFC 2308 clarified caching of name errors and missing data. It made the operational distinction between NXDOMAIN and a NOERROR response without the requested type explicit.

  30. 1999 Aug

    RFC 2671 introduces EDNS(0)

    EDNS(0) added an extension mechanism and an OPT pseudo-record to DNS messages. It made capability negotiation and larger UDP DNS messages possible without changing the base header.

2000s

46 milestones

  1. 2000

    AD DS arrives with Windows 2000

    Microsoft introduced Active Directory Domain Services with Windows 2000 to manage multiple on-premises systems through one identity per user. Forests, domains, and domain controllers became the architectural units for Windows infrastructure.

  2. 2000

    BS 15000 specification published

    BS 15000 introduced a specification that organizations could use for service-management certification audits. Incident management sat within a defined set of service-management processes.

  3. 2000

    BS 7799-2 published

    The British standard for information security management included asset inventory as a foundational control, establishing the link between knowing what you have and securing it.

  4. 2000

    ITIL v2 organizes Service Delivery and Service Support

    ITIL v2 concentrated the guidance around service delivery and support, making service management the organizing concern.

  5. 2000

    Windows 2000 carries the NT line into business desktops

    Windows 2000 Professional used the Windows NT Workstation code base and emphasized reliability, security, hardware support, and business networking.

  7. 2001

    ITIL version 2 completes its service support focus

    ITIL version 2 organized guidance around service delivery and service support. Incident management was treated as an operational practice connected to the service desk and other support processes.

  8. 2001 Mar

    Mac OS X ships

    Apple released Mac OS X in 2001. Its Darwin foundation combined Mach, BSD, I/O, file-system, and networking components with Apple platform layers.

  9. 2001 Mar 24

    Mac OS X ships

    Apple shipped Mac OS X with the Darwin UNIX foundation. Mac administration gained the process, permissions, filesystem, shell, and service model that still underlies current macOS.

  10. 2001 Jun 4

    Windows XP introduces consumer Remote Assistance

    Microsoft integrated Remote Assistance with Windows XP communications, giving users a built-in route to invite online help with a problem.

  11. 2001 Oct 25

    Windows XP unifies the consumer experience on the NT line

    Windows XP brought the NT-based system into Home and Professional editions. Online security updates and distinct consumer and administrative capabilities became part of routine desktop use.

  12. 2002 Apr

    PCI Express 1.0 base specification published

    PCI-SIG published PCI Express as a lane-based, point-to-point successor to the shared parallel PCI bus, enabling motherboards to scale expansion bandwidth by combining lanes rather than widening a shared bus.

  14. 2003

    3am Labs forms around internet remote access

    The company later named LogMeIn formed around remote access, part of the shift from direct host addressing toward brokered internet services.

  15. 2003

    AirWatch is founded

    AirWatch was founded as a dedicated mobile device management vendor years before the smartphone boom that would make MDM a mainstream enterprise purchase. It became one of the specialist vendors that defined the category before later consolidation.

  16. 2003

    Exchange ActiveSync direct push and mailbox policies ship

    Exchange Server 2003 Service Pack 2 added Direct Push, letting a device hold an open connection and sync the moment new mail arrived, along with global mobile device policies such as required PINs and remote wipe. This extended centralized mobile management to any ActiveSync-capable phone, not only BlackBerry devices.

  17. 2003

    Patch Tuesday creates a predictable update cadence

    Microsoft consolidated security updates into a monthly Patch Tuesday process. Update planning became a recurring operational practice rather than an occasional release task.

  18. 2003 Jan

    Serial ATA 1.0a specification published

    SATA replaced parallel ATA's wide ribbon cable with a thin, point-to-point serial connection at 1.5 Gbps, simplifying case cabling and airflow while starting the generational speed increases this course's storage section describes.

  20. 2003 Oct

    RFC 3596 defines IPv6 DNS extensions

    RFC 3596 defined the AAAA record and the ip6.arpa reverse-mapping domain for IPv6. DNS operators gained a standard way to publish and reverse-map IPv6 addresses.

  22. 2004 Apr

    The Open Group publishes Issue 6 Shell and Utilities

    The Open Group reference record dates the Issue 6 Shell and Utilities volume to April 2004. The specification retained a normative command language and utility surface for portable shell work.

  23. 2005

    ISO/IEC 27001 published

    The international information security standard carried forward asset inventory requirements. Annex A control A.8.1 made asset identification and ownership a mandatory security practice, giving ITAM a regulatory hook beyond cost control.

  24. 2005

    TeamViewer begins with internet-connected computer support

    TeamViewer started with software intended to connect to distant computers and reduce travel for support and access.

  25. 2005 Mar

    RFC 4033 defines the DNSSEC framework

    RFC 4033 introduced the DNSSEC security framework and its new record types and protocol changes. Validating resolvers could authenticate DNS data and denial of existence through a chain of trust.

  26. 2005 Mar

    SAML 2.0 approved

    OASIS approved SAML 2.0 and unified federation building blocks from SAML, Shibboleth, and the Liberty Alliance. Its assertions, bindings, profiles, and metadata remain a common enterprise SSO integration boundary.

  27. 2005 Dec

    ISO IEC 20000 launches

    BS 15000 was superseded when the first two parts of ISO IEC 20000 were published. Service incident management gained an international management-system context.

  28. 2005 Dec

    ISO/IEC 20000-1 first edition published

    ISO and IEC published the first international service-management system specification. It applied service-management process requirements across provider sizes and organizational forms.

  29. 2006

    LogMeIn Rescue launches for on-demand support

    Rescue separated technician-led remote support from general personal remote access and centered the connection on a support interaction.

  30. 2006 May

    ISO/IEC 19770-1 first edition published

    The first international standard for software asset management processes established a common vocabulary and framework, giving organizations a way to prove SAM maturity to auditors and corporate governance.

  31. 2006 Aug

    RFC 4632 documents CIDR strategy

    RFC 4632 documented the CIDR address strategy and its routing-table scaling purpose. It preserved prefix-based aggregation as a practical Internet routing technique.

  32. 2006 Nov 14

    Windows PowerShell 1.0 is released

    Microsoft announced Windows PowerShell 1.0 on November 14, 2006. Its object pipeline made the familiar pipe symbol carry a different data model from a traditional byte-stream shell.

  33. 2007

    ITIL v3 introduces the Service Lifecycle

    ITIL v3 reorganized the framework around a service lifecycle rather than the v2 delivery and support structure.

  34. 2007

    ITIL version 3 adopts service lifecycle guidance

    ITIL version 3 reorganized the framework around the service lifecycle. Incident work was placed within service operation while remaining connected to design, transition, and improvement.

  35. 2007

    ITIL version 3 published

    ITIL version 3 reorganized the guidance around a service lifecycle. Strategy, design, transition, operation, and continual improvement became the main organizing structure.

  37. 2007 Jun

    iPhone begins the Apple mobile platform line

    Apple introduced iPhone in 2007. Apple platforms extended the Darwin-based family beyond the Mac while retaining product-specific platform policy.

  38. 2008

    Intel introduces the Platform Controller Hub

    Intel's 5 Series chipset absorbed the northbridge's fastest duties into the CPU package and consolidated the remaining I/O into a single Platform Controller Hub, replacing the earlier two-chip northbridge/southbridge design this course contrasts it with.

  39. 2008

    POSIX.1-2008 becomes the basis of Issue 7

    The Issue 7 Base Specifications present the POSIX.1-2008 revision of the portable operating-system interface. It maintained the Shell and Utilities volume as part of the standard's command environment.

  40. 2008

    Read-only domain controllers change branch-site design

    Windows Server 2008 introduced the read-only domain controller. It added a separate replica and credential-caching decision for locations where physical security or administration differs from the main site.

  41. 2008 Sep

    Android 1.0 released

    Android 1.0 marked a Linux-kernel-based mobile platform with its own application, device, and release ecosystem. It illustrates why kernel lineage alone does not describe the full operating environment.

  42. 2009

    Active Directory Recycle Bin becomes available

    Windows Server 2008 R2 introduced Active Directory Recycle Bin for recovering deleted directory objects without restoring from backup or restarting AD DS. Recovery planning could include an object-level mechanism once the feature was enabled.

  43. 2009

    PagerDuty launches an on-call alerting service

    PagerDuty launched with monitoring integrations, rotations, alert states, and escalation levels. The product marked the growing automation of urgent responder notification for digital services.

  44. 2009 Oct 22

    Windows 7 refines wireless and multiwindow work

    Windows 7 targeted widespread laptop and wireless-network use and improved management of multiple windows. Microsoft also connected the desktop more closely with its online services.

  45. 2009 Nov

    ISO/IEC 19770-2 introduced SWID tags

    The first SWID standard defined machine-readable tags for identifying software. Identification became a standardized input to inventory rather than a vendor-specific name-matching problem alone.

  46. 2009 Nov

    ISO/IEC 19770-2 software identification tags

    Defined SWID tags, a machine-readable XML schema that lets discovery tools identify software precisely by publisher, product, edition, and version, replacing fragile file-name-based detection.

2010s

67 milestones

  1. 2010

    Google publishes Dapper

    Google published Dapper, its distributed tracing system, making the request path across components observable. Tracing became the third signal — alongside metrics and logs — that lets a troubleshooter apply bisection to a multi-hop call.

  2. 2011

    Chrome Remote Desktop enters beta

    Google brought brokered remote access into Chrome and followed with persistent access between a user's computers.

  3. 2011

    ITIL 2011 edition updates the lifecycle guidance

    The 2011 edition revised the version 3 publications while retaining their lifecycle structure. Practitioners received updated guidance without a new framework generation.

  4. 2011

    ITIL 2011 strengthens business alignment

    The 2011 revision clarified the v3 guidance and emphasized alignment between services and business needs.

  5. 2011

    ITIL 2011 update emphasizes business alignment

    The 2011 ITIL update refined the version 3 lifecycle guidance and its alignment with business needs. Incident restoration continued to operate within connected service-management practices.

  6. 2011 Mar

    NVM Express 1.0 specification published

    The NVMe workgroup published a storage command protocol designed to run over PCI Express with many parallel command queues, in contrast to SATA's point-to-point, single-queue-oriented design.

  7. 2011 Apr

    ISO IEC 20000 second edition published

    The second edition updated service-management-system requirements for planning, operation, monitoring, review, maintenance, and improvement. Incident work remained governed as part of an integrated management system.

  8. 2011 Apr

    ISO/IEC 20000-1 second edition published

    ISO published the second edition and withdrew the 2005 edition. The international SMS requirements continued as a revision-managed standard distinct from ITIL guidance.

  9. 2011 Jul

    Lion adds full-volume FileVault and broader device management

    Lion introduced a redesigned FileVault for full-disk encryption, while Lion Server added management support for Mac and Apple mobile devices. Encryption and fleet policy became connected administrative concerns.

  10. 2011 Nov

    RIM launches BlackBerry Mobile Fusion

    RIM introduced Mobile Fusion, its entry into the multi-platform MDM market, extending management beyond BlackBerry devices to Android and iOS smartphones and tablets from one console. This marked BlackBerry's own admission that single-platform management was no longer enough.

  11. 2011 Dec

    Windows 8 certification mandates UEFI Secure Boot

    Microsoft's Windows 8 hardware certification requirements made UEFI Secure Boot mandatory on certified client systems, pushing mainstream desktop firmware away from legacy BIOS and toward the UEFI boot-manager model this course describes.

  12. 2012

    AD DS deployment moves to Server Manager and PowerShell

    Windows Server 2012 integrated AD DS deployment with Server Manager and Windows PowerShell. Domain controller promotion moved to the Active Directory Domain Services Configuration Wizard and related cmdlets.

  13. 2012

    ISO/IEC 19770-1 second edition introduces tiers

    Rewrote the standard as a cumulative four-tier model — Trustworthy Data, Practical Management, Operational Integration, Full Conformance — making incremental adoption and independent certification possible for the first time.

  14. 2012

    Virtualized domain controller safeguards and cloning arrive

    Windows Server 2012 added virtualization-safe capabilities and domain controller cloning. Virtual DC deployment and recovery design gained explicit safeguards against unsafe directory-state reuse.

  15. 2012

    Windows 8 introduces a touch-first application surface

    Windows 8 added a tile-based touch interface and the Windows Store while retaining the desktop. Practitioners now had to distinguish Store applications from traditional desktop software.

  16. 2012 Jun

    ISO/IEC 19770-1 added tiered conformance

    The second edition organized an integrated SAM process baseline into tiers. Organizations could implement and assess capability incrementally across software types and platforms.

  17. 2012 Jun

    World IPv6 Launch establishes permanent IPv6 deployment

    Participating networks, websites, and access providers enabled IPv6 permanently, moving deployment from testing toward routine operation.

  19. 2013

    Windows Server 2012 R2 adds protected-account controls

    Windows Server 2012 R2 introduced Protected Users, authentication policies, and authentication policy silos. Administrators could restrict where high-value identities authenticate and reduce use of weaker credential paths.

  20. 2013 Jan

    Citrix completes its acquisition of Zenprise

    Citrix closed its purchase of Zenprise, a standalone mobile device management vendor, and folded it into its XenMobile product line. It was one of the first large platform vendors to acquire its way into the MDM market rather than build the capability from scratch.

  21. 2013 Nov

    ISO/IEC 19770-5 defined family vocabulary

    The first overview and vocabulary edition introduced SAM foundation principles and common terms for the standards family.

  22. 2013 Dec

    M.2 connector specification released

    PCI-SIG and SATA-IO jointly defined the M.2 card and connector form factor as a successor to mSATA and Mini PCIe, standardizing the compact slot that can carry either SATA or PCIe/NVMe signaling depending on its keying.

  23. 2014

    Chaos engineering named by Netflix

    Netflix formalized chaos engineering as the discipline of experimenting on a production system to build confidence in its resilience, with Chaos Monkey. It reframed troubleshooting's preventive counterpart: instead of diagnosing failures, deliberately cause them.

  24. 2014 Jan

    VMware acquires AirWatch for $1.54 billion

    VMware bought AirWatch, then the largest independent MDM vendor with more than 10,000 customers, to build its end-user computing portfolio. The deal set the template other infrastructure vendors would follow: buy a specialist rather than build one.

  25. 2014 Feb 26

    OpenID Connect ratified

    The OpenID Foundation ratified an identity layer over OAuth 2.0. ID Tokens, claims, issuer identifiers, and relying-party validation enabled interoperable web sign-in with JSON-based artifacts.

  26. 2014 Nov

    Device Enrollment Program formalizes assignment-based enrollment

    Apple's deployment program connected organization purchasing records and reseller identifiers to device assignment. Administrators could prepare an enrollment relationship before a user activated the device.

  27. 2015

    Windows 10 shifts the platform toward continuous servicing

    Windows 10 introduced a service-based model with regular platform updates and published update-history pages. Version and support state became recurring administration concerns.

  29. 2015 Aug

    ISO/IEC 19770-5 expanded from SAM to ITAM

    The second overview edition placed software asset management within the wider IT asset management family and refreshed its shared vocabulary.

  31. 2015 Sep 30

    System Integrity Protection arrives with El Capitan

    System Integrity Protection restricted root access to protected operating-system locations. Administrative software had to work through supported paths instead of assuming unrestricted system modification.

  32. 2015 Oct

    ISO/IEC 19770-2 revised SWID tags

    The second SWID edition refined the software identification structure and clarified producer, platform, tool, and consumer roles.

  33. 2015 Oct

    ISO/IEC 19770-5 overview and vocabulary

    Published a freely available overview of the 19770 family, expanding visibility beyond SAM practitioners and establishing ITAM as the umbrella discipline covering hardware, software, and services.

  34. 2015 Nov 24

    ISO approves a knowledge management systems project

    ISO approved the project that became ISO 30401. Knowledge management entered a formal international management-system development path.

  35. 2016

    Guiding principles enter ITIL guidance

    Guiding principles provided broadly applicable recommendations for decisions beyond a single process or lifecycle stage.

  36. 2016

    ITIL guiding principles enter the framework's evolution

    PeopleCert's official history identifies the guiding principles as a 2016 milestone. The principles prepared the shift from a fixed process view toward adaptable practice guidance.

  37. 2016

    Windows Server 2016 functional level adds privileged access management

    The Windows Server 2016 forest functional level added privileged access management support with Microsoft Identity Manager. Functional-level planning became part of deploying newer controls for privileged identities.

  38. 2016 Feb

    VMware introduces the Workspace ONE brand

    VMware merged AirWatch, Identity Manager, and Horizon into a single platform branded Workspace ONE, combining enrollment and policy management with identity and access in one product line. It set the pattern later UEM platforms followed of pairing device management with an identity layer.

  39. 2016 Mar

    Google publishes Site Reliability Engineering

    Google's SRE book documented incident command, operations, planning, communications, handoffs, and shared state for large production incidents. These patterns made role separation explicit for digital-service response.

  40. 2016 Mar

    RFC 7766 updates DNS over TCP requirements

    RFC 7766 clarified that full DNS implementations support TCP and described operational requirements for persistent TCP connections. It reinforced that UDP-only reachability is not enough for complete DNS behavior.

  41. 2016 Apr

    Google SRE book published

    Google released the Site Reliability Engineering book under Creative Commons, including the "Effective Troubleshooting" chapter that framed troubleshooting as the hypothetico-deductive method and named the common pitfalls. It is the source this course follows.

  42. 2016 Apr

    ISO/IEC 19770-3 entitlement tags

    Defined machine-readable representations of licensing terms, rights, and limitations, bridging the gap between installed software and purchased entitlements at an industry standard level.

  43. 2016 Apr

    ISO/IEC 19770-3 standardized entitlement records

    The entitlement schema introduced common terms and a transport format for usage rights and their metrics. It kept original license documentation authoritative for legal interpretation.

  44. 2016 Apr

    NIST published interoperable SWID guidance

    NISTIR 8060 placed SWID tags in an operational software lifecycle and documented creation guidance and inventory and security use cases.

  47. 2016 May

    Prometheus joins CNCF

    Prometheus, the time-series monitoring toolkit modeled on Google's Borgmon, became the CNCF's second hosted project. It carried the metrics half of the evidence set a troubleshooter examines into open source.

  49. 2016 Sep 7

    ISO committee draft registered

    ISO registered and opened consultation on the committee draft for the knowledge management systems standard. The project moved from approval into documented committee work.

  50. 2017 Jul

    RFC 8198 enables aggressive DNSSEC cache use

    RFC 8198 allowed validating resolvers to use NSEC and NSEC3 records to synthesize certain negative answers and wildcard-positive answers. It changed cache behavior for signed zones while reducing repeated queries.

  51. 2017 Jul

    RFC 8200 publishes the IPv6 specification

    RFC 8200 published the IPv6 specification as an IETF Standards Track document and obsoleted RFC 2460. It is the current base specification for IPv6 packet format and processing.

  52. 2017 Sep

    ISO/IEC 19770-4 standardized utilization measurements

    The new structure represented resource-utilization measurements for IT asset management. It supplied evidence for metrics that require more than installation presence.

  53. 2017 Sep 21

    Draft International Standard registered

    ISO registered the draft as a Draft International Standard. The proposed requirements moved into the international enquiry stage.

  54. 2017 Sep 25

    High Sierra moves flash-storage Macs to APFS

    Apple shipped APFS as the storage foundation for supported Mac flash storage. Storage, encryption, cloning, recovery, and upgrade procedures shifted to the APFS volume model.

  55. 2017 Dec

    ISO/IEC 19770-1 became an ITAM management-system standard

    The third edition specified requirements for establishing, maintaining, and improving an IT asset management system across IT asset types.

  56. 2017 Dec

    ISO/IEC 19770-1 third edition rewrites to MSS format

    Major rewrite aligned ITAM with ISO management system standards like ISO 9001 and 27001. Renamed from SAM to IT asset management, explicitly covering hardware, software, subscriptions, and cloud services within one governance framework.

  57. 2018

    CIS Controls v7 establishes asset inventory as Control 1

    The Center for Internet Security placed inventory and control of enterprise assets at the top of its prioritized defense list, cementing asset visibility as the prerequisite for every other security control.

  58. 2018 May 17

    Draft approved for final standard preparation

    ISO recorded approval to register the draft as a Final Draft International Standard. The requirements advanced toward formal publication.

  59. 2018 Jul

    Gartner launches the first UEM Magic Quadrant

    Gartner retired its separate Magic Quadrants for Client Management Tools and Enterprise Mobility Management and published its first Magic Quadrant for Unified Endpoint Management, evaluating 14 vendors. The change formalized "UEM" as the market's term for managing mobile and desktop devices from one console.

  60. 2018 Aug

    Prometheus graduates at CNCF

    Prometheus graduated from CNCF incubation, confirming the time-series metrics model as production-grade and the default evidence source for trend and saturation analysis in cloud-native systems.

  62. 2018 Oct 31

    ISO 30401 published

    ISO published the first edition of its knowledge management systems requirements. Organizations gained an international reference for establishing, maintaining, reviewing, and improving a knowledge management system.

  65. 2019

    OpenTelemetry formed from OpenTracing and OpenCensus

    The merger of OpenTracing and OpenCensus into OpenTelemetry unified metrics, logs, and traces under one instrumentation standard, giving a troubleshooter a single request identifier threaded through every component.

  66. 2019 Mar 4

    WebAuthn becomes a W3C Recommendation

    W3C and the FIDO Alliance finalized Web Authentication as a web standard for public-key credentials. Browsers and platforms gained a common API for phishing-resistant authenticator ceremonies.

  67. 2019 Jun

    Catalina management introduces bootstrap-token support

    Apple presented MDM escrow of a bootstrap token for supported secure-token workflows. Account provisioning and FileVault authorization could rely less on passing existing administrator credentials through scripts.

2020s

24 milestones

  1. 2020

    NIST SP 1800-5 practice guide for ITAM finalized

    The National Institute of Standards and Technology published a practice guide linking IT asset visibility directly to cybersecurity outcomes, providing an architecture reference for integrating ITAM evidence with security monitoring.

  2. 2020 Jul

    Jamf goes public on the Nasdaq

    Jamf, an Apple-only device management specialist, closed its initial public offering and began trading under the ticker JAMF. It showed that a platform focused on one operating-system family, rather than a broad UEM console, could still reach public-market scale.

  3. 2020 Jul

    JEDEC publishes the DDR5 SDRAM standard

    JEDEC's JESD79-5 standard defined DDR5's voltage, timing, and module requirements, roughly doubling DDR4's end-of-life bandwidth at a lower 1.1V operating voltage and starting the current DIMM generation this course's memory section describes.

  4. 2020 Nov 10

    Apple silicon changes the Mac security and recovery model

    Apple introduced the first M1 Macs with hardware and macOS designed together. Administrators had to account for volume ownership, recoveryOS, startup security, and architecture-specific software behavior.

  5. 2020 Nov 12

    Big Sur introduces the signed system volume

    macOS 11 protected system files with a cryptographically signed system volume. System updates and administrative tooling had to preserve a sealed operating-system state.

  6. 2020 Dec

    Ivanti completes its acquisition of MobileIron and Pulse Secure

    Ivanti closed simultaneous acquisitions of MobileIron, an early enterprise mobility management pioneer, and Pulse Secure, folding both into a combined unified endpoint management and zero-trust security portfolio. The deal removed another independent EMM pioneer from the market.

  8. 2021 Jun

    Declarative device management is introduced

    Apple introduced declarations and a status channel alongside the existing MDM protocol. A managed device could evaluate relevant state locally and report changes without a server polling every condition.

  9. 2021 Jun 24

    Windows 11 is announced with a revised desktop

    Microsoft announced Windows 11 with a redesigned Start experience and new window snapping behavior. The underlying operating model continued while the interactive shell changed.

  10. 2021 Sep

    OpenTelemetry metrics stable

    OpenTelemetry reached stable metrics support, letting a service emit one instrumentation standard that feeds metrics, logs, and traces — the evidence set of a troubleshooting investigation — without per-vendor code.

  11. 2022

    ISO publishes the first amendment

    ISO published the first amendment to ISO 30401. The amendment showed that the management-system reference had entered a maintained lifecycle.

  12. 2022 Sep

    Morgan Stanley pays $35M SEC penalty for disposal failures

    The SEC charged Morgan Stanley Smith Barney for failures in asset disposal — lost decommissioned devices with customer data, unvetted vendors, no verification of destruction. The case became the canonical example of what happens when retirement and disposal controls exist on paper but not in practice.

  13. 2023

    eBPF observability mainstream

    eBPF-based observability tools moved kernel-level tracing and profiling into mainstream use, letting a troubleshooter ask "where" a process is spending time without instrumenting the application. It widened the "where" question beyond userspace.

  15. 2023

    Practice Manager and Master routes are added

    The qualification portfolio added the Practice Manager and ITIL Master routes, giving practice capability a clearer progression beyond Foundation.

  16. 2023 Jun

    IETF standardized CoSWID

    RFC 9393 defined a compact CBOR representation aligned with SWID semantics. Constrained devices could carry software identification information with less transport and storage overhead.

  17. 2023 Jun 6

    CISA and partners publish joint remote-access guidance

    The guidance treated legitimate remote-access and RMM software as a security control surface that defenders must inventory, monitor, and harden.

  18. 2024

    AI-assisted root-cause analysis enters practice

    Vendors began offering AI-assisted root-cause analysis on top of metrics, logs, and traces, ranking hypotheses for a responder. It did not replace the hypothetico-deductive method; it sped the "form hypotheses" step and left testing to the operator.

  19. 2024

    POSIX.1-2024 publishes Issue 8

    POSIX.1-2024 updates the current Shell and Utilities specification and its rationale. It remains the modern reference for portable shell grammar and utility behavior.

  20. 2024

    Practice adoption guidance expands

    Additional adoption guidance made the practice material more usable for organizations applying ITIL 4.

  21. 2024

    Windows Server 2025 introduces 32k-page AD databases

    Windows Server 2025 introduced a 32k-page database format for new AD DS installations and an optional forest-wide conversion. Enabling the larger format requires compatible domain controllers, the Windows Server 2025 functional level, and backup compatibility planning.

  22. 2024 Apr 26

    ISO records that ISO 30401 will be revised

    ISO completed its systematic review and recorded the standard for revision. Practitioners could continue using the published edition while tracking a replacement under development.

  23. 2024 Jul

    Omnissa launches as an independent company

    Following KKR's acquisition of VMware's end-user computing business from Broadcom, Omnissa launched as a standalone software company carrying the Workspace ONE unified endpoint management product forward outside VMware. It showed that even a market-leading UEM platform's ownership keeps changing as its parent company's strategy shifts.

  24. 2025 Jan

    EU DORA takes effect

    The Digital Operational Resilience Act requires EU financial institutions to maintain continuously updated asset inventories connected to risk controls and third-party dependency maps, making ITAM a compliance obligation rather than an operational preference.