Toshiba T1000

Although there were efforts to make a portable computer.But this socalled portable computer were large and draggable(atleast 10-20kg).Toshiba T1000 at first change this portable concept-with 2.9kg,slim look,faster processor(80c88)-Yet there was250k rom in place of hard disk

The Toshiba T1000 was a laptop computer manufactured by the Toshiba Corporation in 1987.

It had a similar specification to the IBM PC Convertible, with an 4.77MHz 8OC86TM processor, 512kb of RAM, and a monochrome CGA-compatible LCD. Unlike the Convertible, it includes a standard serial port and parallel port, connectors for an external monitor, and a real-time clock.

Unusually for an IBM compatible PC, the T1000 contained a 256 kB ROM with a copy of MS-DOS 2.11. This acted as a small, read-only hard drive. Alternative operating systems could still be loaded from the floppy drive, or (if present) the ramdisk.

Alongside the earlier T1100 and T1200 systems, the Toshiba T1000 helped to change the image of portable computing. Before the T1100, previous supposedly portable computers were large and unwieldy (the term draggable may be more appropriate).

T1000 specification
Dimensions	12.2" W × 11.0" D × 2.05" H (310 × 280 × 52 mm)
Power	9 VDC, 1.1A (+ = core; - = shell)
Weight	6.4 lbs (2.9 kg)
Video	CGA card
Sound	PC speaker
Battery	Rechargeable NiCd pack (1300 mAh)
Media	1 - 720 3.5" floppy disk drive
Mouse	None
Keyboard	Selectable between PC or AT (101)

Processor 8OC88/4.77 MHz ------------------------------- Memory 512 KB ------------------------------- Floppy-disk drives 1 built-in 3.5" diskette drive, 720 KB A second external 3.5" diskette drive, 720 KB or 5.25" floppy-disk drive, 360 KB can be connected ------------------------------- Keyboard 82 keys, compatible with IBM PC

------------------------------- Display Supertwist display 80 characters x 25 lines Graphics 640 x 200 dots or 320 x 200 dots Swivel-mounted up to 180o ------------------------------- Interfaces RS232C serial Centronics parallel (printer) Colour display (RGB) Composite video External diskette drive

----------------------------- Operating system MS-DOS 2.11 ---------------------------- Measurements 310 x 280 x 52 mm (W x D x H) ----------------------------- Weight 2.9 kg ------------------------------ Power supply Built-in rechargeable NiCad batteries AC adapter/charger

AC adapter/charger