IBM-compatible PC's:

1981: IBM PC:

-4.77MHz 8bit 8088 CPU with 16-64K RAM (later 640K);

-mono or CGA 200x640 color;

-160K 5¼" FDD or cassette tape;

1983: IBM PC XT:

-

1984: IBM PC AT:

-6MHz 16bit 80286 CPU with 256K-3Mb RAM;

-optional 20Mb HDD;

1987: IBM PS/2 Range:

Model 30 (2nd gen. XT):

- 8MHz 8bit 8086 CPU with 640K RAM;

- Dos 3.3; 70W power supply; 3 x 8bit slots;

- MCGA video (640x480x2 colors;320x200x256colors)

- 2 x 720K FDD's = $3500

- 1 x 720K FDD + 20Mb 80msec HDD = $4720

Model 50 (2nd gen. AT):

- 10MHz 16bit 80286 with 1 wait state; 1Mb RAM;

- Dos 3.3; 3 x 16bit slots;

- VGA video (640x480 x16color);

- 1 x 1.44Mb FDD + 20Mb 80msec HDD = $9000

Model 80:

- 16MHz 32bit 80386 CPU with 1-16Mb RAM;

- 1.44Mb 3½" FDD, 44-314Mb HDD;

- VGA 640x480 16 color display;

- 4 x 16bit + 2 x 32bit slots (MCA architecture)

- 1Mb RAM + 44Mb 40msec HDD = $14,600;

- 2Mb RAM + 115Mb 28msec HDD = $22,820;

IBM-compatible clones, etc:

XT clones:

1990: 10MHz; 640K; 360K FDD; 20Mb HDD Mono; = $A1150;

1992: virtually obsolete as predominance of Windows 3.0;

AT clones:

1990: 16MHz; 1MB; 1.2Mb FDD; 20Mb HDD; Mono; = $A1390;

21MHz; 1Mb; 1.2Mb FDD; 20Mb HDD; Mono; = $A1490;

21MHz; as above but 40Mb HDD + VGA color = $A2395;

1992: virtually obsolete as predominance of Windows 3.0;

386DX clones:

1990: 20MHz; 1Mb; 1.2Mb FDD; 40Mb HDD; VGA color = $A3199;

33MHz; as above but 64K cache; = $A4299;

1992: 33MHz; 4Mb; 2xFDD; 105Mb HDD; sVGA;ISA = $A2270;

1993: 33MHz; 4Mb; 2xFDD; 120Mb HDD; sVGA;ISA = $A1450;

486DX clones:

1990: 25MHz; 4Mb; 1.2Mb FDD; 330MbHDD; sVGAcolor= $A12,000

1991: 33MHz; 4Mb; 1.2Mb FDD; 80Mb HDD; VGA color =$A4660;

33MHz; as above but EISA = $6650;

1992: 33MHz; 4Mb; 2xFDD;85Mb HDD; XGA; EISA = $A3400;

50MHz; 4Mb; 2xFDD;85Mb HDD; XGA; ISA =$3000;

50MHz; 4Mb;2xFDD;240Mb HDD; 24bit sVGA; ISA = $4290;

1993: 33MHz; 4Mb;2xFDD;120Mb HDD; sVGA; ISA =$A2040;

66MHz; 4Mb;2xFDD;120Mb HDD;sVGA;ISA+2VLBUS;=$A2500;

Pentium clones:

1993: 4Mb;120Mb HDD; sVGA; ISA; = $A10,000??

1994: 8Mb; 360Mb, 2Mb 32bit sVGA; 15" screen; PCI 60Mhz Pentium; $5500;

1996: 8Mb;1G EIDE PCI; 15" screen; 1Mb 64bit sVGA; PnP PCI 100MHz Pentium;

Hex speed CDROM, SB16 sound, 6CDs, Windows95 $2800

Jul'96: as above but 16Mb RAM $2200;

Laptops:

1987: Zenith Z-181:

- 4.77MHz 8bit 8088 CPU + 640K RAM; DOS 3.2;

- 75key kboard; backlit mono. LCD display 8½"x6½";

- 2 x 720K FDDs; 640x200 video; 6kg; 5hr battery;

- 33x28x7.5cm; $A5500;

Toshiba T1100plus:

- similar to Zenith Z-181 but:

- 81keys; 7MHz; supertwist 9" mono. LCD; CGA

- 5kg; 30.5x30.5x6.4cm; 8-10hr battery; $A3995;

Toshiba T3100/20:

- 8MHz 16bit 80286 CPU; 1Mb RAM;

- Gas plasma 640x400 mono. screen;

- 20Mb 80msec HDD; AC only; $A8900;

Notebooks:

1993: 486LC 25MHz; 4Mb; 213Mb HDD; 9"VGAmono; $A2595;

486DX 33MHz; 4Mb; 120MbHDD; 9"VGApass.col;$A3714

486DX 50MHz; 4MB; 120MbHDD;9"VGAmono; $A3354;

486DX 50MHz; as above but active matrix col.;$A6234;

1996: Pentium 100; 8Mb; 420Mb HDD; 10" pass.col (65K); 1Mb sVGA LB;

16550 UART serial; EPP/ECP parallel port; Serial infrared port; Glidepoint;

win95; $3400 (extra $1000 for inbuilt CDROM & 16bit stereo sound)

Sub-notebooks:

1993: Hewlett-Packard Omnibook 300:

- 386SXLV (3.3V) 20MHz; 2-8Mb RAM; 40Mb HD; No FDD;

- 9" reflective mono 640x480x16shades screen; 2.9lbs;

-

1993: IBM Thinkpad 500:

- 50MHz 486SL; 4-12Mb; 85-170Mb HD; ext.FDD;

- 7.4" backlit STN LCD mono 640x480x64shades screen;