Toshiba T1000

The Toshiba T1000 was a compact battery-powered PC-compatible laptop with a monochrome LCD and MS-DOS stored in ROM. It used a single 720 KB floppy drive instead of an internal hard disk.

Its modest price, light weight and instant access to ROM-based DOS made portable PC computing more accessible in the late 1980s.

Notable Features

• MS-DOS 2.11 held in ROM
• Single 3.5-inch floppy drive
• Compact battery-powered clamshell

Historical Significance

• Its modest price, light weight and instant access to ROM-based DOS made portable PC computing more accessible in the late 1980s.

Collector’s Notes

• RAM cards, battery packs and floppy drives are model-specific and frequently missing or non-functional.
• Memory, storage, displays and expansion hardware should be documented because configurations often changed during a system’s working life.

Specifications

Technical Information
Name	Toshiba T1000
Manufacturer	Toshiba
Launched	Thursday, January 1, 1987
Country	Japan
CPU	Intel 80C88
Units Sold
Form Factor	Laptop
Power	Rechargeable battery or AC adapter
Networking	Optional modem
Operating System	MS-DOS 2.11 in ROM
Expansion / I/O	Serial, parallel, external display and modem/expansion interfaces
Keyboard	Integrated keyboard
Storage	720 KB 3.5-inch floppy drive
Sound	PC speaker
Colours	Monochrome internal; external colour
Graphics	CGA-compatible 640 x 200 pixels
Display	Monochrome LCD
ROM	Toshiba BIOS and MS-DOS 2.11 in ROM
RAM	512 KB standard; expandable to 768 KB
CPU Speed	4.77 MHz