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1.1
General
The Toshiba T4400SXC Personal Computer uses extensive Large Scale Integration (LSI), and
Complementary
Meta1~Oxide
Semiconductor (CMOS) technology to provide minimum size
and weight, low power usage and high reliability. The T4400SXC incorporates the following
features and benefits:
o
~croprocessor
The T4400SXC uses an 80486SX-25 microprocessor that operates at 25 MHz.
o
Math co-processor
The T4400SXC comes with a built-in socket for an 80486DX-25 which has a
Numeric Data Processing Unit (NDP).
o
Cache memory
The T4400SXC has an 8 KB cache memory which is stored in the 80486SX
microprocessor.
o
Disk storage
The T4400SXC has an internal 80 or 120 Megabyte (MB) Hard Disk Drive
(HDD) with an average access time of 19 milliseconds. A 3.5-inch Floppy Disk
Drive (FDD) supports 2HD floppy disks (1.44 Mbytes) and 2DD floppy disks
(720 Kbytes).
o
Memory
The T4400SXC comes standard with 4 MB of CMOS Random Access Memory
(RAM). This includes 640 KB of conventional memory and 3,456 KB of
extended memory which can be utilized as expanded memory compatible with
the Lotus/lntel/Microsoft Expanded Memory Specifications (LIM-EMS).
o
TFf color LCD
A high resolution Liquid Crystal Display (LCD) 640x480 pixels 512 colors for
both graphics and characters.
The T4400SXC internal display controller supports Video Graphics Adapter
(VGA) functions on the internal display devices.
o
Keyboard
An easy to use 82/84-key keyboard with full-size keys and standard spacing is
compatible with IBM standard software.
(] Batteries
The T4400SXC has three different batteries: a main battery, a backup battery,
and a Real Time Clock (RTC) battery.
o
Expansion port
The T4400SXC has one unique 150-pin expansion port.
o
Parallel port
A
centronics compatible parallel interface port serves two purposes. The port
can be used to connect a centronics compatible printer or an external floppy disk
drive.
(] RS-232-C port
The T4400SXC has one 9-pin serial interface port.
1-5
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