The HomeComp Wiki is the structured public reference for the HomeComp Computer Family project: an alternate-history microcomputer ecosystem beginning with the HC-77B, a fictional 1977 front-panel MOS 6502 machine.

This wiki does not replace the project README or the included machine manuals. Instead, it documents the public HomeComp releases in a structured way: emulator use, released machine specifications, company history, ecosystem release details, and the public expansion interfaces available to third-party examples.

Modern usage guidance for the released HomeComp emulator builds.

This section explains how to run the emulator, how its files are arranged, what the emulator controls do, what is currently supported, and where the included fictional machine manuals fit into the release.

High-level technical reference for released HomeComp machines.

This section covers machine specifications, memory maps, I/O summaries, supported configurations, and emulator implementation notes for systems that have been publicly released.

The fictional company history and historical context behind the HomeComp ecosystem.

This section explains the alternate-history premise, the early HomeComp launch context, and how each public release fits into the wider fictional company story.

Release-led documentation for each public HomeComp ecosystem update.

This section records which systems, software, firmware, manuals, adverts, peripherals, and supporting files belong to each release wave.

Technical documentation for the public expansion and peripheral API.

This section covers the released HC-77B expansion model, device lifecycle, memory-mapped I/O expectations, packaging rules, and third-party peripheral examples.

The current public archive covers the development of the HC-77B from its September 1977 launch through Late 1979.

The September 1977 launch introduced the HC-77B base system together with the TTY Interface, Video Display Controller and Keyboard extensions.

Late 1977 added the official 3K RAM Expansion and bundled NIM cassette.

Easter 1978 added Advanced Monitor Tools and HC Cassette BASIC, followed by the Mid 1978 Scrolling LED Display.

September 1978 introduced HC-77B 8K ROM BASIC, HomeComp's first resident floating-point BASIC.

Easter 1979 brought the HC-77B Complete System Bundle, combining the mature 4K, Keyboard/CRT and ROM BASIC configuration into a complete home-computer package.

The latest release is the Late 1979 — HC-77B Text & Printer Pack.

The Text & Printer Pack adds a 40-column impact printer and resident CRT Text Editor, including cassette document storage, 255-character logical lines, whole-document printing, persistent virtual paper, PDF export and a public standalone printer ROM API.

• HomeComp Wiki
• HomeComp on itch.io
• Support HomeComp on Ko-fi
• HomeComp subreddit

Links to Internet Wayback Machine copies of old websites and blogs

For licensing, giftware, copyright, and AI-assistance notes, see Copyright, Licensing and Giftware.