Toshiba T1100
1985 laptop computer
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The Toshiba T1100 is a laptop manufactured by Toshiba in 1985, and has subsequently been described by Toshiba as "the world's first mass-market laptop computer".[1] Its technical specifications were comparable to the original IBM PC desktop, using floppy disks (it had no hard drive), a 4.77 MHz Intel 80C88 CPU (a lower-power variation of the Intel 8088), 256 KB of conventional RAM extendable to 512 KB, and a monochrome LCD capable of displaying 80x25 text and 640x200 CGA graphics.[2] Its original price was US$1,899 (equivalent to $5,680 in 2025).
Toshiba T1100, discolored | |
| Manufacturer | Toshiba |
|---|---|
| Released | 1985[1] |
Introductory price | US$1,899 (equivalent to $5,680 in 2025) |
| MS-DOS 2.11 | |
| CPU | Intel 80C88 @ 4.77 MHz |
| Memory | 256 KB RAM (upgradable to 512 KB) |
| Storage | Internal 3.5" floppy drive, 720 KB; external 5.25" floppy drive, 360 KB |
| Display | Monochrome LCD / Text mode: 80×25 |
| Graphics | 640×200 (CGA) |
| Input | Keyboard 83 keys, QWERTY |
| Weight | 4.1 kg (9.0 lb) |
| Successor | Toshiba T1200 |
The T1100 PLUS is a later model of this laptop, released to the market in 1986.[3] Some significant differences to the T1100 are: 16-bit data bus 80C86 CPU, 7.16 MHz or 4.77 MHz operation, 256 KB of conventional RAM (16-bit) extendable to 640 KB, and two internal 720 KB 3.5" diskette drives.[4]
The T1100 was named an IEEE Milestone in 2009.[5]
Clones
Toshiba T1100 PLUS was cloned in the USSR as Electronika MS 1504 in 1991.[6]
