T4400SX General Information: Model number: T4400SX LCD 80MB - PA1102U T4400SX PDP 80MB - PA1102UW T4400SX LCD 120MB - PA1103U T4400SX PDP 120MB - PA1103UW Dimensions: 11.7"W x 8.3"D x 2.2"H Weight: 7.25 lbs. with battery pack Voltage: Computer DC input - 21VDC, 1.9A Universal AC adapter - 100-240 VAC 50-60 Hz Battery: Removable rechargeable NiCD battery pack CPU: 80486SX-25 (8KB internal cache), Upgradeable to 80486DX-25 for coprocessor RAM memory: 2MB standard (640KB conventional; 1280KB extended or HardRAM; 128KB shadow ROM) Memory expandable up to 18MB via one credit card style memory slot when optional 2MB, 4MB, 8MB, or 16MB card is added Number of keys: 82 Keyboard type: 101-key keyboard compatible Drives: One 1.44MB 3.5" floppy disk drive One 80MB or one 120MB hard disk drive Features: AutoResume, HardRAM, Automatic display and hard drive shutdown, CPU sleep mode, Intelligent power supply with battery "gas gauge", password protection Operating system: Toshiba MS-DOS 5.0 Software Compatibility: Compatible with software written for the IBM PC/XT/AT using VGA, EGA, or CGA resolution graphics modes Interfaces: VGA color video port RS-232-C serial port Parallel printer/external diskette or tape drive port Numeric keypad/101-key keyboard adapter port Built-in modem slot - "E" form factor ("D" form factor compatible) 150 pin expansion interface connector PS/2 mouse port Credit card style memory slot Display: Display type: Fluorescent Sidelit Supertwist LCD Display area: 7.7"W x 5.75"H; 9.5" diagonal Resolution: 640 x 480 Dot dimension: 0.24mm x 0.24mm Dot pitch: 0.30mm x 0.30mm Aspect ratio: 1 : 1 Contrast: 15 : 1 Gray scales: 16 gray scales in 640 x 480, 64 in 320 x 200 resolution - or - Display type: Gas Plasma Display Panel (PDP) Display area: 7.7"W x 5.75"H; 9.5" diagonal Resolution: 640 x 480 Dot dimension: 0.24mm x 0.24mm Dot pitch: 0.30mm x 0.30mm Aspect ratio: 1 : 1 Contrast: 100:1 Gray scales: 16 Simultaneous display: Gas plasma model only 2.5" 80MB Hard Disk Drive Conner Peripherals HDD: CP-2084 Interface: IDE Average access time: 19ms Recording method: RLL 2-7 2.5" 120MB Hard Disk Drive Toshiba HDD: MK-2124FC Interface: IDE Average access time: 17ms Recording method: RLL 2-7 - or - Conner Peripherals HDD: CP-2124 Interface: IDE Average access time: 17ms Recording method: RLL 2-7 Hardware Switches and Controls: 1) Power on/off Located on left side of computer 2) Reset Located on back of computer 3) LCD brightness and contrast dials Located on right side of display on LCD models only Soft Switches: 1) Change speed Fn + PgUp 25MHz CPU Speed, 8MHz bus speed Fn + PgDn 25MHz CPU Speed, 4MHz bus speed 2) Pop-up window Fn + Esc Toggles pop-up window 3) Keypad overlay Fn + F10 Toggles keypad overlay Fn + F11 Num lock Fn + F12 Scroll lock 4) FN key Fn + Alt Simulate IBM enhanced keyboard Right ALT Fn + Ctrl Simulate IBM enhanced keyboard Right CTRL Fn + Enter Simulate IBM enhanced keyboard numeric keypad enter Options and Extra Accessories: PC-PA2003U 2MB memory card PC-PA2004U 4MB memory card PC-PA2005U 8MB memory card PC-PA2010U 16MB memory card PC-T24D 2400 bps Hayes compatible dedicated built-in modem (Bell or CCITT) PC-T24D/X 2400 bps Hayes compatible built-in modem w/enhanced protocol (MNP5, V.42 bis) PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter PC-PA2407U Battery pack - 2400 mAh PC-PA900L Battery pack recharger with AC adapter PC-PA2408U Universal AC adapter 21 VDC PC-PA800L Auto adapter - 12 VAC PC-PA7354E 17-key numeric keypad PC-PA8718U 101-key keyboard adapter with external power supply PC-PA722L TD80 external tape backup drive PC-PA2700U Desk Station lV PC-PA877L Fabric carrying case PC-PA1000L Leather carrying case PC13-PA874L Executive leather portfolio PR-PA2750U ExpressWriter 201 portable printer PC-SW013 Toshiba MS-DOS 5.0 (includes diskettes and manuals) PC-SW007 Toshiba MS-DOS 4.01 (includes diskettes and manuals) PC-SW004 Toshiba BASIC 3.30 (includes diskette and manual) PC-SW012 Toshiba MS OS/2 operating system 1.21 System Memory Map: Space Address range (Kilobytes) Used For: ------------------------------------------------------- '00000000' 640 System working '0009FFFF' memory ------------------------------------------------------- '000A0000' 128 Video RAM '000BFFFF' ------------------------------------------------------- '000C0000' 32 VGA BIOS ROM '000C7FFF' ------------------------------------------------------- '000C8000' 96 (Reserved) '000DFFFF' ------------------------------------------------------- '000E0000' 32 HardRam window '000E7FFF' ------------------------------------------------------- '000E8000' 32 Backup RAM '000EFFFF' ------------------------------------------------------- '000F0000' 64 System BIOS ROM '000FFFFF' ------------------------------------------------------- '00100000' 1,024 System working '001FFFFF' memory ------------------------------------------------------- '00200000' 8,192 Optiional memory cards '009FFFFF' ------------------------------------------------------- '00A00000' 384 System memory '00A5FFFF' ------------------------------------------------------- '00A60000' 4,183,616 Memory expansion in 'FFFEFFFF' expansion port ------------------------------------------------------- 'FFFF0000' 64 System BIOS ROM 'FFFFFFFF' (Duplicated) ------------------------------------------------------- I/O Port Assignment: Port Address From / To Device / Function ---------------------------------------------- '000' / '01F' 82C37 : DMA Controller 1 '020' / '03F' 82C59 : PIC 1 '040' / '05F' 82C54 : Timer '060' / '06F' SKBC '070' NMI '070' / '07F' RTC '080' / '09F' DMA Page Register '0A0' / '0BF' 82C59 : PIC 2 '0C0' / '0DF' 82C37 : DMA Controller 2 '0E0' / '0EF' Special Register '0F0' / '0F7' NDP '100' / '1EF' VGA '1F0' / '1FF' HDC '200' / '207' Game I/O '208' / '20F' (Not Used) '210' / '217' Expansion Unit '218' / '21F' (Not Used) '220' /'257' (Not Used) '258' / '25F' (Not Used) '260' / '267' (Not Used) '268' / '26F' (Not Used) '270' / '277' (Not Used) '278' / '27F' Parallel PRT 2 '280' / '2A7' (Not Used) '2A8' / '2AF' Reserved for EMS '2B0' / '2B7' (Not Used) '2B8' / '2BF' Reserved for EMS '2C0' / '2DF' (Not Used) '2E0' / '2E7' (Not Used) '2E8' / '2EF' Reserved for EMS '2F0' / '2F7' (Not Used) '2F8' / '2FF' Serial Port 2 (COM 2) '300' / '31F' Prototype card '320' / '32F' XT type HDC '330' / '337' (Not Used) '338' / '33F' Serial Port 3 (COM 3) '340' / '377' (Not Used) '378' / '37F' Parallel PRT 1 '380' / '38F' SDLC, Bisynchronous 2 '390' / '39F' (Not Used) '3A0' / '3AF' Bisynchrounous 1 '3B0' / '3BF' MDA, PRT '3C0' / '3DF' CGA, EGA, VGA '3E0' / '3E7' (Not Used) '3E8' / '3FF' Serial Port 3 (COM 3) '3F0' / '3F7' FDC '3F8' / '3FF'' Serial Port 1 (COM1) '400' / '47F' (Not Used) '480' / '49F' DMA Hi-Page Register Interrupts: Interrupt Level Assigned To: -------------------------------------------------------------------- NMI RAM Parity Error; I/O Channel Error 0 Timer 1 Keyboard 2 PIC 2 for levels 8 to 15 1 3 Secondary Communications (COM 2) 4 Primary Communications (COM 1) 5 PRT 2 6 FDC 7 PRT 1 8 RTC 9 Software Redirect to INT '0A' 2 10 (Reserved) 11 (Reserved) 12 PS/2 Mouse 13 NDP of 80486DX 14 HDC 15 (Reserved)