hardware

The Zilog Z80 microprocessor, launched in July 1976, achieved significant success in early 8-bit personal computers and numerous embedded applications, remaining in use in industrial systems until its discontinuation in 2024. Developed as a binary compatible, enhanced successor to the Intel 8080, the Z80 introduced added registers, new instructions, simplified bus design, and flexible interrupt modes, enabling simpler system interfacing and higher performance. Its design lineage traces back to the Datapoint 2200 terminal’s TTL-based CPU and Intel’s 8008 and 8080 processors, with the Z80 influencing later architectures and maintaining relevance for nearly five decades.

https://goliath32.com/blog/z80.html

The PDP-11 minicomputer, introduced in 1970 by Digital Equipment Corporation, significantly impacted computing by popularizing interactive computing and influencing modern hardware architecture, operating systems, and programming languages. It notably contributed to the development of the UNIX operating system and the C programming language, with its elegant 16-bit architecture and assembly programming features fostering flexibility and efficiency in software development. The PDP-11’s widespread use in various critical systems and its long commercial life underscore its profound legacy in computing history.

https://arstechnica.com/gadgets/2022/03/a-brief-tour-of-the-pdp-11-the-most-influential-minicomputer-of-all-time/

The Atari ST, launched in the mid-1980s under Jack Tramiel’s leadership, offered affordable and powerful computing with a Motorola 68000 CPU, a graphical desktop, and notably built-in MIDI ports that attracted musicians and developers alike. The author recalls personally upgrading their 520ST by soldering extra RAM chips onto the motherboard, doubling its memory and extending its lifespan, highlighting the machine’s hands-on, user-friendly nature. Although it never achieved widespread success in the U.S., the Atari ST remains a significant and nostalgic computer for its era, especially in music production.

https://www.macsparky.com/blog/2026/06/soldering-my-way-to-1mb/

The article explores the history and significance of the DECmate II, a 1982 desktop microcomputer by Digital Equipment Corporation that condensed the PDP-8 minicomputer architecture into a word-processing machine aimed at office use. It traces the PDP-8’s evolution from the 1960s, highlights the challenges DEC faced with microcomputers, and details the role of the CMOS microprocessor implementations like the Intersil IM6100 and Harris HD-6120 in enabling the DECmate line. The DECmate II featured improvements over earlier models with a more modern design and pricing strategy, making it an accessible office system that maintained much of the PDP-8’s legacy despite compatibility quirks.

https://oldvcr.blogspot.com/2026/05/ahoy-decmate-ii-little-pdp-8-that-could.html