1. 25th Anniversary of the IBM PC
By Ray Paternostro Jr.
New Orleans Personal
Computer Club
August 2006

2. Introduction of the IBM PC
August 12, 1981
Specifications:
Intel 8088, 4.77mhz
16mb-64mb
CGA video – 640x200
One or two single-sided 180kb floppy drives
Five 8-bit ISA slots
83 key keyboard
PC-DOS 1.0 by Microsoft

3. Early 80s PC Evolution IBM PC-XT, March 1983
Double sided 360k floppy, 10mb hard disk
Eight 8-bit ISA slots
Intel 4.77 mhz
Empty socket for 8087 co-processor
128kb memory
PC-DOS 2.0

4. Early 80s PC Evolution - clones
Similar specifications to IBM’s models
Created by reverse engineering the BIOS
Open architecture made this possible
Right, top- Columbia Systems PC
Right, bottom: Compaq Portable

5. Further Evolution IBM PC/AT - August 1984
Intel processer w/ socket for co-processor
512kb RAM
1.2mb floppy
20mb hard drive which had a high failure rate
Six 16-bit ISA slots, 2 8-bit
EGA video, 640x350
84 AT keyboard w/ LEDs
PC-DOS 3.0

6. IBM missteps PCjr- 1984-1985 PS/2 line
Targeted at home users; competition from others was fierce
Chiclet keyboard
Incompatible with many PC applications
PS/2 line
Microchannel architecture
32-bit based, technically superior to ISA bus
Outrageous licensing requirements
Introduced PS/2 connectors for keyboard and mouse

7. Further Evolution - clones
Compaq Deskpro line
Leading Edge Model D
Dell Sys325

8. Into the 90s
Dell Precision 386sx
Tandy 1000HX

9. Into the 90s, part 2
Compaq Deskpro 486
Gateway 486SX

10. Into the 90s, part 3 Standard clone PCs
Two Pentium 90s, a Pentium 75, and a Pentium 150

11. Architecture of PC/AT PC-AT motherboard
Advertisement for replacement motherboard

12. Architecture of PC AT EGA video Western Digital drive interface
Parallel interface
Combo memory w/serial, parallel ports

13. Architecture of PC clones
IBM PS/2 motherboard
486 motherboard, AT form factor, VESA Local Bus slots
Motherboard with ISA and PCI slots

14. Architecture of PC clones
Video cards- MCA, EGA 8-bit, VGA 16-bit, VLB 32-bit VGA
VLB controller

15. Architecture of PC clones
Configuration of motherboards and peripherals
Jumpers vs. dip-switches

16. Motherboards today

17. Modern Video cards GeForce 6200, PCI-Express form factor
ATI Radeon X700, AGP form factor

18. Evolution of portables
Very large and heavy
Used full size components, except for the monitor
Columbia Systems portable, Compaq portable, Zenith 386

19. Evolution of notebooks
IBM 5140
AST 386
Compaq 386
NEC’s first notebook, V30 processor

20. Evolution of notebooks
IBM Thinkpad 486
Gateway Handbook 486
Toshiba 486
NEC Pentium

21. Evolution of notebooks
Gateway Solo Pentium
Dell Latitude Pentium II
Gateway Solo Pentium III
IBM Thinkpad Pentium M

22. PC peripherals - keyboards
IBM PC/AT - 84
IBM PC/XT - 83
IBM Model M - 101
Keytronic – 104
Focus – 107

23. PC peripherals - keyboards
Microsoft Natural ergonomic – 1st version
PC Concepts SK-6000 with integrated touchpad

24. PC peripherals - keyboards
Microsoft Desktop Elite wireless
Microsoft Remote for XP MCE

25. PC peripherals - keyboards
Gateway Anykey- programmable with macros and key remapping
Kinesis Advantage Pro

26. PC peripherals- Microsoft mice
Microsoft “Dove bar” mouse
Microsoft Intellimouse with scroll wheel
Mouse inside
Intellimouse Explorer – 1st version

27. PC peripherals- Logitech mice

28. PC peripherals – hard drives
Interface type - MFM

29. PC peripherals – hard drives
IDE – the dominant interface
SATA – the future

30. Evolution of modems- Hayes
Internal Smartmodem 300
External Smartmodem 300
External Smartmodem 1200
Optima 336

31. Evolution of modems- U.S. Robotics
14.4kbps internal ISA
56kbps internal ISA
56kbps internal PCI
9600bps external
33.6kbps external
56kbps external

32. Printers – HP Laserjets
Laserjet I
Laserjet II
Laserjet IID

33. Printers – HP Laserjets
Laserjet III
Laserjet IIID
Laserjet 4
Laserjet 4V

34. Printers – HP Laserjets
Laserjet 4si
Laserjet 5si

35. Printers – HP inkjets Thinkjet – 1984 Deskjet Plus – 1989

36. Microsoft Windows Windows 1.0, 1985 Windows 2.0, Nov 1987
Windows 2.03, January 1988

37. Microsoft Windows Windows 3.0, November 1990
Windows for Workgroups 3.1, October 1992

38. Microsoft Windows Windows for Workgroups 3.11, December 1994
Windows 95, August 1995

39. Microsoft Windows Windows 98, June 1998
Windows 98 Second Edition, May 1999
Windows Millenium Edition, September 2000

40. Microsoft Windows Windows NT Workstation and Server 4.0, July 1996
Windows 2000 Professional, February 2000

41. Microsoft Windows Windows XP Home and Professional, October 2001
XP Service Pack 2, August 2004

42. The future
Home Theatre PCs
HTPC

43. The future
Small form factor models
Based on Mini-ITX form factor