General Information Model number: T4400SX LCD 80MB - PA1102U (FCC ID# CJ6UK904) T4400SX PDP 80MB - PA1102UW (FCC ID# CJ6UK905) T4400SX LCD 120MB - PA1103U (FCC ID# CJ6UK904) T4400SX PDP 120MB - PA1103UW (FCC ID# CJ6UK905) 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: I486 SX-25 (8KB internal cache), Upgradeable to i486DX-25 for coprocessor feature 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 Video RAM: 256KB Number of keys: 82 Keyboard type: 101-key keyboard compatible Drives: One 1.44MB 3.5" floppy disk driveOne 80MB or one 120MB hard disk drive Standard features: AutoResume electronic bookmark HardRAM Automatic display and hard drive shutdown CPU sleep mode,Intelligent power supply with battery "gas gauge"3.5 hrs. battery life; recharges in 1.5 hrs.Low battery warning light and audible alarm Password protection Product Support U.S. and International limited warranty Toshiba exceptional care program (requires enrollment) Operating system included: 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 Fluorescent Sidelit Supertwist LCD Display (T4400SX LCD) Display area: 7.7"W x 5.75"H; 9.5" diagonal Resolution: 640 x 480 Dot dimension: .24mm x .24mm Dot pitch: .30mm x .30mm Aspect ratio: 1 : 1 Contrast: 15 : 1 Gray scales: 16 gray scales in 640 x 480, 64 in 320 x 200 resolution Gas Plasma Display Panel Display (T4400SX PDP) Display area: 7.7"W x 5.75"H; 9.5" diagonal Resolution: 640 x 480 Dot dimension: .24mm x .24mm Dot pitch: .30mm x .30mm Aspect ratio: 1 : 1 Contrast: 100:1 Gray scales: 16 Simultaneous display to external monitor 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 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 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 Environmental Specifications 1) Operating condition Ambient temperature: 41 to 95 degrees F. 5 to 35 degrees C. Relative Humidity: 20% to 80% non-condensing Altitude (from sea level): -200 to 10,000 ft. (-60 to 3,000 meters) 2) Non-Operating condition Ambient temperature: -4 to 140 degrees F. -20 to 60 degrees C. Relative Humidity: 8% to 80% non-condensing Altitude (from sea level): 30,000 ft. (10,000 meters) max. 3) Wet bulb temperature condition Ambient temperature: 79 degrees F. (26 degrees C.) maximum Options and Extra Accessories PC-PA2003U 2MB memory card (no longer manufactured) 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) (no longer manufactured) PC-T24D/F 2400bps data/9600bps send/receive FAX built-in modem PC-T144D/F 14400 bps send/receive FAX built-in modem (no longer manufactured) PC-T24D/X orPC-T24D/X2 2400 bps Hayes compatible built-in modem w/enhanced protocol (MNP5, V.42 bis)(both no longer manufactured) PC-TCL24A Audiovox Axsys cellular connection for use with T24D/X modem (no longer manufactured) PC-TCL24M Motorola Axsys cellular connection for use with T24D/X modem (no longer manufactured) PC-TCL24N NEC Axsys cellular connection for use with T24D/X modem (no longer manufactured) PC-TCL24U Uniden Axsys cellular connection for use with T24D/X modem (no longer manufactured) PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter PC-PA2407URA Battery pack - 2400 mAh PC-PA900L Battery pack recharger with AC adapter (no longer manufactured) PC24-PA2408U Universal AC adapter 21 VDC PC24-PA800L Auto adapter - 12 VAC (no longer manufactured) PC-PA801L Statpower Prowatt 125 auto adapter PC-PA2113 Toshiba SCSI adapter (replaces PC-PA2112) PC-PA7354E 17-key numeric keypad PC-PA8718U 101-key keyboard adapter with external power supply PC-PA722L TD80 external tape backup drive (no longer manufactured) PC-PA3305L PC Guardian computer lock (no longer manufactured) PC-PA2700UXZ Desk Station lV (replaces PC-PA2700UX) PC-PA2701U Desk Station IV (replaces PC-PA2700UXZ) PC-PA270L Axonix Cablemate port replicator PC-PA877LX Fabric carrying case (no longer manufactured) PC-PA180B Blue PC Pack carrying case PC-PA180R Red PC Pack carrying case PC-PA1000L Leather carrying case (no longer manufactured) PC-PA1050L Leather attache case PC13-PA874L Executive leather portfolio (no longer manufactured) PR-PA2750U ExpressWriter 201 portable printer (no longer manufactured) PC-SW013 Toshiba MS-DOS 5.0 (no longer manufactured) PC-SW015 Toshiba MS-DOS 5.0 (no longer manufactured) PC-SW007 Toshiba MS-DOS 4.01 (no longer manufactured) PC-SW004 Toshiba BASIC 3.30 (no longer manufactured) PC-ASP44DX Intel 486DX upgrade kit for I486 SX models (no longer manufactured) System Memory Map Address range Space (Kilobytes) Used For: '00000000''0009FFFF' 640 Conventional memory '000A0000''000BFFFF' 128 Video RAM for VGA '000C0000''000C7FFF' 32 VGA BIOS ROM '000C8000''000DFFFF' 96 Reserved '000E0000''000E7FFF' 32 HardRAM window '000E8000''000EFFFF' 32 Backup RAM 000F0000''000FFFFF' 64 System BIOS ROM '00100000''001FFFFF' 1,024 System working memory '00200000''0011FFFF' 16,384 Optional working memory '00120000''FFFEFFFF' Memory expansion in expansion port 'FFFF0000''FFFFFFFF' 64 System BIOS ROM (Duplicated) 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) 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' KBC '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' Bisynchronous 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