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Tandy TRS-80 Model 4

Tandy · 1983

The last of the Z80 TRS-80 desktops: 128K, an 80×24 display and CP/M compatibility, which finally gave the line access to the wider business software catalogue. Runs Model III software too, so it is the most capable machine of the family.

As catalogued

Maker
Tandy
CPU
Zilog Z80A-4
Memory
16K, 64K, 128K
Styles
Model 4, Model 4D, Model 4P (portable)
Regions
NTSC (US), PAL (Europe)
Chassis
all-in-one with a 12-inch screen
OS
TRSDOS 6 / LS-DOS / CP/M

Chips

2
CPU
Zilog Z80A, Zilog Z8400AB1, NEC D780C-1, SGS Z8400AB1, Sharp LH0080A, Mostek MK3880N-4, GoldStar Z8400A, Toshiba TMPZ84C00AP
Floppy controller
WD1773

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