Toshiba T3100

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Toshiba T3100
Manufacturer Toshiba
Type laptop
Release date 1986; 31 years ago (1986)[1]
Operating system MS-DOS 3.2[1]
CPU Intel 80286 @ 8 MHz[1]
Memory 640 kB RAM (upgradable to 2.6 MB)[1]
Storage 10 MB hard drive; internal 3,5" floppy drive, 720 kB; connector for external 5,25" floppy drive, 360 kB[1]
Display monochrome 9.6" orange gas-plasma display[1]
Graphics 640×400; 640×200; Textmode: 80×25
Input keyboard - 83 keys, QWERTY
Connectivity external monitor via 9-pin RGB port.[1]
Dimensions 0.310 x 0.361 x 0.079 meter[1]
Weight 7.5 kg

T3100 was a laptop manufactured by Toshiba and released in 1986. It featured a 10 MB hard drive, 8 MHz Intel 80286 CPU and a monochrome 9.6" gas-plasma display with a resolution of up to 640x400 pixels.[1]

The laptop had for the time a special high-resolution 640 x 400 display mode which is similar to and partially compatible with the Olivetti/AT&T 6300 graphics.[1] There's a single proprietary expansion slot for 1200 bit/s modem, expansion chassis for 5x 8-bit ISA cards, Ethernet NIC, 2400 bit/s modem, and a 1 MB memory card (thus 3.6 MB in max total).[1]

Toshiba T3100 was not a true portable, because it needed an external power source in all except the last version.

Five versions existed:

  • The T3100/20 was essentially the same as the base T3100 but with a larger hard drive (20 MB instead of 10 MB).
  • The T3100e had a 12 MHz 80286 CPU, 1 MB RAM and a 20 MB hard drive.
  • The T3100e/40 was the same as the T3100e, but with a larger 40 MB hard drive.
  • The T3100SX had a 16 MHz i386SX CPU, 1 MB RAM and a 40 MB or 80 MB hard drive, and also included an internal rechargeable battery for true portability.


BYTE in 1989 listed the T3100/20 as among the "Distinction" winners of the BYTE Awards, citing its "amazingly clear" display and hard drive.[2]


  1. ^ a b c d e f g h i j k "Toshiba T3100". Retrieved 2016-04-11. T3100, released in 1986, consisted of an 80286 CPU running at 8MHz, but could be slowed to 4.77MHz using a keyboard shortcut. It also had 640KB system memory, which could be upgraded to 2.6MB. It shipped with MS-DOS 3.2. 
  2. ^ "The BYTE Awards". BYTE. January 1989. p. 327. 

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