Windows 7
Popular client release that refined Vista's security and interface foundation.
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Windows 8 and 8.1
Touch-oriented Windows generation with Secure Boot support and a redesigned application model.
Windows 95
Introduced the Start menu and mainstream Plug and Play while retaining a DOS-based foundation.
Windows 11
Current client generation with stronger hardware baselines including TPM and Secure Boot expectations.
Windows Server 2012 and 2012 R2
Server generation for virtualization, storage, identity and application roles.
Windows Server 2016
Introduced Shielded VMs, containers and newer security controls to the long-term servicing channel.
Windows Server 2019
Hybrid, virtualization, storage and security improvements over Server 2016.
Windows Server 2022
Secured-core capabilities, modern TLS and hybrid-management improvements.
Windows Server 2025
Current server generation with expanded security, hybrid and virtualization capabilities.
Classic Mac OS 7
System 7 era that carried Macintosh computing into networking, color and PowerPC transitions.