| GENERAL |
| Type: | 16-bit home computer |
| CPU: | TMS9900 @ 3.3 MHz |
| Operating system(s): | TI Basic |
| Memory: | ROM: 26 KB
RAM: 256 Bytes (Expandable to max 52 KB)
VRAM: 16 KB |
| Power supply: | 5 and 16 V from external transformer |
| Current drain / power consumption: | |
| Dimensions (W*H*D): | 381*71*259 mm (15*2.8*10.2") |
| Weight: | 2.2 Kg (4.85 lb) |
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| I/O |
| Keyboard: | Integrated |
| Graphics: | TMS9929A (PAL/SECAM) or TMS9918A/TMS9928A (NTSC) with 16 KB VRAM
Max 256*192 pixels, 16 colors |
| Audio: | TMS9919: 3 tones, 5 octaves plus noise |
| Storage: | Tape recorder
Optional floppy drive in the optional PEB |
| External I/O ports: |
| A/V out: | 5-pin DIN (180°) |
| Cartridge slot: | 36-pin edge connector |
| Cassette port: | DE-9p / DB-9m |
| Expansion port: | 44-pin edge connector |
| Game/joystick: | DE-9p / DB-9m |
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| Other: | |
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| MISCELLANEOUS |
| Manufactured: | 1983-1984 (Discontinued) |
| Additional info: |
An updated version of the all plastic beige TI-99/4A. Both the motherboard
and power supply were improved, and the number of IC's on the motherboard were
reduced from 42 to 35. The "QI" designation could be seen on the motherboard
but not anywhere on the console itself.
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| Related documents: | |
| Modifications and fixes: | |
| Notable "ham" software: | |
| Reviews: | Radio & Television (Sweden): September 1982 (#9) |
| Options / Accessories: |
PHP1200
PHP1220
PHP1240
PHP1250
PHP1260
PHP1270
PHP?
TI-900
And more...
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Peripheral Expansion Box (8 slots) A.k.a "PEB" or "P-Box"
RS-232C card (For the PEB)
Disk controller, single density (For the PEB)
Disk drive, 5.25" single density (For the PEB)
32K memory expansion (For the PEB)
P-code card / ROM-disk (For the PEB)
Two RS-232C and one parallel port (For the PEB)
TV/RF video modulator (Channel 3 or 4, selectable)
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