| GENERAL |
| Type: | 8-bit home computer |
| CPU: | Zilog Z80A @ 4 MHz |
| Operating system(s): | Locomotive BASIC. AMSDOS. (CP/M option) |
| Memory: | ROM: 32 KB
RAM: 64 KB |
| Power supply: | 5 VDC (Male barrel jack, center positive) |
| Current drain / power consumption: | Max 2 A |
| Dimensions (W*H*D): | 580*70*170 mm (22.83*2.76*6.69") |
| Weight: | 2.4 Kg (5.29 lb) |
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| I/O |
| Keyboard: | Integrated |
| Graphics: |
Motorola MC6845 with up to 16 KB VRAM
27 colors palette
Mode 0: 160*200 pixels, 16 colors
Mode 1: 320*200 pixels, 4 colors
Mode 2: 640*200 pixels, 2 colors
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| Audio: |
General Instrument AY-3-8912
3 channels, 8 octaves
Built-in mono speaker
External stereo output (Line level)
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| Storage: |
Built-in tape recorder, compact cassette type. 1000/2000 bd
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| External I/O ports: |
| Expansion port: | 50-pin edge connector |
| Printer (Centronics): | 34-pin edge connector |
| RGB video out: | 6-pin DIN |
| Stereo audio out: | TRS "Minijack" (3.5 mm) |
| User port: | DE-9p / DB-9m (Joysticks and other peripherals) |
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| Other: | |
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| MISCELLANEOUS |
| Manufactured: | Korea (Designed in England), 1984-1990 (Discontinued) |
| Additional info: |
There are four revisions of the motherboard.
Rev 0. The original, actually manufactured in 1983
Rev 1. Manufactured in 1984.
Rev 2. Unknown year. About half the size of the original.
Rev 3. Cost reduced from 1988. About a quarter of the original size.
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| Related documents: |
User manual (31.2 MB)
Service manual (15.9 MB)
Service manual amendment (19.6 MB)
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| Modifications and fixes: | |
| Notable "ham" software: | |
| Reviews: | |
| Some options / Accessories: |
CTM640
DDI-1
DMP-1
GT64
FD-1
MP1
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Color monitor. Built-in 5 VDC supply for the computer
3" disk drive and interface set + CP/M 2.2 disk
Impact dot matrix printer, 50 CPS
Green monochrome monitor. Built-in 5 VDC supply for the computer
Secondary 3" disk drive for DDI-1
TV modulator with built-in 5 VDC supply for the computer
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