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TI-99/4

TI-99/4 · 1979–1981 · desktop

Specifications

Cpu: Texas Instruments TMS9900, 3 MHz
Ram: max: 16 KB on board; up to 32 KB (52 KB total addressable) with a Peripheral Expansion Box memory card · base: 16 KB
Ports: Solid State Software cartridge slot · 2x joystick ports · Cassette port · RF video out · Peripheral Expansion Box connector
Display: TMS9918 video processor: 16 colors, 40x24 character-cell text limited to 28 columns in TI BASIC (no lowercase character set), 256x192 graphics modes
Storage: base: Cassette tape (no internal storage) · options: 5.25" floppy disk drive via the Peripheral Expansion System
Os Support: latest: TI BASIC in ROM · shipped: TI BASIC in ROM
Release Price: $1,150

Upgrade paths

RAM

32 KB expansion card in the Peripheral Expansion Box · The PEB is a separate chassis of card slots connected by a ribbon cable, shared architecture with the later TI-99/4A.

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