T4400C General Information: Model number: T4400C w/i486DX and 200MB hard disk - PC24-PA1150UXT T4400C w/i486SX and 120MB hard disk - PC24-PA1103UXT Dimensions: 11.7"W x 8.3"D x 2.3"H Weight: 8 lbs. with battery pack Voltage: Computer DC input - 21VDC Universal AC adapter - 100-240 VAC 50-60 Hz Battery: Removable rechargeable NiCD battery pack CPU: 80486DX-25 -or- 80486SX-25 8KB internal cache for both types RAM memory: 4MB standard (640KB conventional; 3.25MB extended or HardRAM; 128KB shadow ROM) Memory Expandable up to 20MB 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 120MB or one 200MB 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: Color TFT-LCD active matrix, VGA compatible Display area: 7.6"W x 5.7"H; 9.5" diagonal Resolution: 640 x 480 x 256-colors Aspect ratio: 1 : 1 Colors: 256 colors out of a palette of 185,193 on TFT-LCD and/or external SVGA monitor in 640 x 480 mode Simultaneous display to external monitor 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 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 PC13-PA874L Executive leather portfolio PC-PA1050L Leather attache' PC-PA1000L Leather carrying case PC-PA877L Fabric carrying case PC-PA900L Battery pack recharger (with AC adapter) PC24-PA2407U Battery pack (one supplied standard, 2400 mAh PC-T24D 2400 bps Hayes compatible dedicated built-in modem (Bell or CCITT) PC-T24D/F Internal data/fax modem, 2400 bps data/9600 fax PC-T24D/X 2400 bps Hayes compatible built-in modem w/enhanced protocol (MNP5, V.42 bis) PC-TCL24(*) AXSYS intelligent cellular interface (for use with D/X modem) PC24-PA2408U Universal AC adapter - - 21VDC PC-PA801L Statpower universal auto adapter PC-PA7354E 17-key numeric keypad PC-PA8718U 101-key keyboard adapter with external power PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter PC-PA2112 150-pin SCSI adapter PC-PA2700UX Desk Station IV PC-ASP44DX Intel486DX upgrade kit (for i486SX model) PR-PA2750U ExpressWriter 201 portable printer * (A)udiovox, (M)otorola, (N)EC or (U)niden models available. 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)