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September 1977 Launch

tmcd35 edited this page May 29, 2026 · 2 revisions

September 1977 Launch

The September 1977 launch is the first public HomeComp release wave.

It introduces the HC-77B and establishes the starting point for HomeComp Ecosystem Era 1.

HC-77B September 1977 product sheet

September 1977 HC-77B launch product sheet.

Release Contents

Category Released Material
System HC-77B base system
Firmware HC-77B boot/monitor ROM
Emulator HC-77B emulator builds for Windows, macOS, and Linux
Documentation HC-77B user and technical documentation
Extensions TTY Interface, Video Display Controller, Keyboard
Media support Cassette handling and blank tape creation
Tools Initial public development/support tools where included

Standalone Launch Extensions

The September 1977 launch includes three standalone extension products available in the repository's extensions/ section.

Extension Role Repository
TTY Interface Adds teletype-style character input/output support Extension files
Video Display Controller Adds video display support for the HC-77B Extension files
Keyboard Adds keyboard input support for expanded use Extension files

These are treated as public launch products rather than built-in assumptions of the base HC-77B package.

Release Role

This release establishes the public baseline for HomeComp.

It defines:

  • the first released HomeComp machine
  • the initial emulator environment
  • the first standalone extension products
  • the September 1977 launch context
  • the first public documentation set
  • the starting point for later ecosystem releases

HC-77B Position

The HC-77B is the first HomeComp system: a 1977 front-panel MOS 6502 microcomputer designed as a serious expandable launch machine.

For the machine specification and memory map, see HC-77B Technical Overview.

For modern emulator usage, see Emulator User Manual.

For company background and historical context, see HomeComp History & Lore.

Release Notes

The September 1977 release is intentionally focused.

It presents the HC-77B, its emulator environment, three launch extension products, and its supporting launch documentation as the first public slice of the HomeComp ecosystem.

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