Model number: PA8048U
Dimensions: 14.6"W x 4.3"H x 15.6"D
Weight: 17 lbs.
Voltage: 115 VAC ( 104 - 127)/220 VAC (198 - 264) auto sensing
Frequency: 50/60Hz auto sensing
CPU: 80386SX-20 MHz; 80387SX-20 coprocessor socket
RAM memory: 1MB standard (640KB conventional; 384KB extended)
Memory expandable to 7MB with optional 2MB memory modules
or Memory expandable to 13MB with optional 4MB memory
modules
Number of keys: 91
Keyboard type: 101-key keyboard compatible
Drives: One 1.44MB 3.5" floppy disk drive
One 120MB hard disk drive
Operating system: Toshiba MS-DOS 4.01 shipped with early models
Toshiba MS-DOS 5.0 shipping with current models
Software Compatibility
Compatible with software written for the IBM PC/XT/AT using VGA, EGA,
CGA, or T3100/AT&T 6300 640 x 400 high resolution graphics mode
Interfaces
VGA color video port
Built-in dedicated modem slot - "D" form factor
2 RS-232-C serial ports
Parallel printer/external diskette or tape drive port
101-key enhanced keyboard port
3 Toshiba proprietary memory slots
2 expansion interface slots (one IBM PC/XT/286 compatible full length
low profile 16 bit ISA slot, and one IBM PC/XT compatible half length
low profile 8 bit ISA slot or Toshiba proprietary slot - "A" form
factor)
Display
(Refer to section 6-1 for more information on Toshiba Color TFT-LCD
technology)
Display type: TFT-LCD Color Active Matrix
Display area: 8.3"W x 6.2"H; 10.5" diagonal
Resolution: 640 x 480
Colors: 16 colors in 640 x 480
256 out of a palette of 185193 colors in 320 x 200 mode
Contrast: 60:1
3.5" 120MB Hard Disk Drive
Conner Peripherals HDD: CP-30104
Interface: IDE
Average access time: 19ms
Recording Method: 2,7 RLL
IBM Compatible Expansion Slots
1 full length IBM PC/XT/286 compatible low profile 16 bit ISA slot;
1 half length IBM PC/XT compatible low profile 8-bit ISA slot
Maximum card sizes:
16-bit long slot 333.502mmL +/ - .5mm x 106.68mmW
99.06mmW +/ - .3mm w/o connector
33mmH or 13mmH if short slot used
8-bit short slot 140mmL x 13mmH, width same as 16 bit
Hardware Switches and Controls
1) Power on/off
Located on back of computer
2) A/B/PRT switch
Located on right side of computer
- With switch set to "A", external FDD port is accessed as drive A;
internal 3.5" FDD as drive B.
- With switch set to "B", external FDD port is accessed as drive B,
internal 3.5" FDD as drive A.
- Switch is set to "PRT" for parallel printer output.
- Computer must be re-booted for switch change to take effect.
Options and Extra Accessories
PC19-PA8318U 2MB memory module
PC19-PA8319U 4MB memory module
PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter
PC-T24A 2400 bps Hayes compatible Toshiba expansion slot
modem w/serial port (no longer manufactured)
PC-T24D 2400 bps Hayes compatible dedicated built-in modem
(Bell or CCITT)
PC-T24D/X 2400 bps Hayes compatible dedicated built-in
modem w/enhanced protocol (MNP5, V.42 bis)
PC-PA7597E Fabric carrying case
PC-PA7598 Leather carrying case
PC- PA7310U Expansion chassis (requires expansion chassis
interface card)
PC-PA7313E Expansion interface card
PC-PA5467U ToshibaLAN 16 bit Ethernet card (Toshiba proprietary
expansion slot)
PC-PA5466U ToshibaLAN 8 bit Ethernet card (IBM/XT compatible
8bit 1/2 card)
PC-PA722L TD80 external tape drive
PC-PA7367E Floppy Link to 5.25" desktop diskette drive
PR-PA2750U ExpressWriter 201 portable printer
PC-SW004 Toshiba BASIC 3.30 (includes diskette and manual)
PC-SW008 Toshiba MS-DOS 3.30 (includes diskettes and manual)
PC-SW007 Toshiba MS-DOS 4.01 (includes diskettes and manuals)
PC-SW013 Toshiba MS-DOS 5.0 (includes diskettes and manuals)
PC-SW012 Toshiba MS OS/2 operating system 1.21
System Memory Map
Space
Address range (Kilobytes) Used For:
---------------------------------------------------------------------
'000000' 640 System working
'09FFFF' memory
---------------------------------------------------------------------
'0A0000' 128 Video RAM
'0BFFFF'
---------------------------------------------------------------------
'0C0000' 32 Video BIOS
'0C7FFF'
---------------------------------------------------------------------
'0C8000' 32 (Not Used)
'0CFFFF'
---------------------------------------------------------------------
'0D0000' 64 (Not Used)
'0DFFFF'
---------------------------------------------------------------------
'0E0000' 64 (Not Used)
'0EFFFF'
---------------------------------------------------------------------
'0F0000' 64 System BIOS ROM
'0FFFFF'
---------------------------------------------------------------------
'100000' 15,360 Memory expansion area
'FFFFFF'
---------------------------------------------------------------------
Interrupts
Interrupt Level Assigned To:
---------------------------------------------------------------------
NMI I/O Channel Error
0 Timer
1 Keyboard
2 Interrupt Controller 2
1 3 SIO port 1, 2, Toshiba modem or others
4 SIO port 1, 2, Toshiba modem or others
5 SIO port 1, 2, Toshiba modem or others
6 Floppy disk
7 Printer 1
---------------------------------------------------------------------
8 RTC
9 Software Redirect to INT '0A'
2 10 (Reserved)
11 (Reserved)
12 SIO port 1, 2, Toshiba modem or others
13 Math coprocessor
14 Hard disk
15 (Reserved)
