Toshiba T4400SX Notebook

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The 1992 Toshiba T4400SX was the first notebook to offer a choice of screens: a bright page-white LCD screen, or the latest super-fast plasma screen technology. The benefits of the plasma screen are brighter images and a much faster response. The speed of plasma allows you to work in advanced applications and in particular with graphics just as you would on a desktop. With the T4400SX even moving images won't blur on your screen. And the screen is unexpectedly large for a notebook, too. Try a diagonal of 9.5 inches (24 cm) for size.

Processor: Intel 486SX™ upgradable to 486DX™, 25 /12.5 MHz clock speed, 8 KB cache on chip, Reset switch, Numeric data processor included in 486DX Memory: Standard 2 MB RAM, Expandable to 10 MB, LIM EMS 4.0XMS support
Hard Disk: 80 MB, less than 19 ms average access time
Diskette Drive: 3.5" 1.44 MB/720 KB diskette drive, Media-type checking
Display: Sidelit Supertwist LCD or high contrast, low power gas plasma, 9.5" (24 cm) diagonal, 640 x 480 dot resolution
Graphics Adapter: VGA compatible, 16 greyscales (plasma) or 64 grey scales (LCD), Up to 256 colours on external screen
Keyboard: 84 full-sized sculptured keys in familiar layout, 12 function keys, 8 dedicated cursor keys, integrated numeric keypad
Interfaces: Centronics compatible parallel/ FDD port, 9-pin RS-232C serial port, PS/2 mouse port, 150-pin connector for DeskStation IV, 15-pin analogue VGA monitor port, Numeric keypad port
Special Features: MaxTime™ Power Management, AutoResume™ Mode, Power-on password protection, Toshiba HardRAM
Expansion: DeskStation IV option, Enhanced communications slot, Creditcard sized memory expansion slot
Power Supply: Autosensing 100-240VAC adaptor for world-wide usage
Battery: Rechargeable and removable NiCd 3 hours battery life (depending on use), recharges in 1. 5 hours
Size: 297 x 210 x 56mm (11.7" x 8.3" x 2,2")
Weight: 3.3 kg (7.2 lb)
Options: Carrying case, DeskStation IV, Extra battery packs, 2, 4 and 8MB memory expansion cards, External 5.25" 360 KB diskette drive, External numeric keypad, External keyboard adaptor, Key caps for European languages, MS-DOS 5.0, 4.01, 3.3, Toshiba ExpressWriter 201 portable printer

Our machine with power supply has a model no. of PA1103E Y
System Unit: T4400SX/120
Serial No. 07213890 E

Manufacturer: Toshiba
Date: 1992

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Byte May 1992 23 Sep 2009

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This exhibit has a reference ID of CH17017. Please quote this reference ID in any communication with the Centre for Computing History.


Toshiba T4400SX Notebook

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