The Personal Computer A Timeline. 1977 The Commodore PET First Personal Computer 1Mhz processor 4K...
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Transcript of The Personal Computer A Timeline. 1977 The Commodore PET First Personal Computer 1Mhz processor 4K...
The Personal Computer
A Timeline
1977
The Commodore PET• First Personal Computer• 1Mhz processor• 4K memory• Tape drive for storage• Capable of displaying Uper
and lowercase text as well as graphics
• Used the Basic operating system
• Initial cost was $595
1977
• Apple II• 1Mhz Processor• 4K memory standard
upgradeable to 64K• 16 color graphics• Sound• Ports for video, tape
recorder, and game paddles
• OS was Integer Basic• Cost was $1298
1977
Radio Shack TRS-80• 1.7 Mhz Processor• 4K memory standard
upgradeable to 48K• Monochrome green• Cassette Recorder for
storage• OS was TRS DOS• Cost was $1099
1978
• Atari 400/800• 1.79 Mhz Processor• 8K memory standard,
upgradeable to 48K• First to use co processors
for I/O• 128 color display• Cassette recorders and
5.25” disk drives for storage
• OS was Atari Dos• Cost was $999.95
1979
• Texas Instruments TI-99/4• 3 Mhz Processor• 16K memory • 16 color display• Cassette Recorder for storage• Programs on Cartridge• OS was TI Basic• Cost was $1150
1980
Sinclair ZX80• 3.25 Mhz Processor• 1k memory, upgradeable to 64 • No color display• No sound• Cassette Recorder for storage• Programs on Cartridge• OS was Basic that only dealt
with real numbers• Cost was $199.95
1980
TRS-80 Color Computer• .89 Mhz Processor• 4K memory • 4 color display• Cassette Recorder for
storage• Programs on Cartridge• OS was Tandy Color
Basic• Cost was $399
1980
TRS-80 Color Computer• 2 Mhz Processor• 128K memory
upgradeable to 512K • 16 color display• 5.25” Floppy Drives for
storage• OS was Apple SOS• Built with businesses in
mind• Cost was $3815
1981
Commodore VIC-20• 1 Mhz Processor• 5K memory upgradeable
to 32K• 16 color display• Cassette Recorder or
5.25” floppy drive for storage
• Programs on Cartridge• OS was CBM Basic v2• Cost was $299
1981
Osborne 1• 4 Mhz Processor• 64K memory • Monochrome• Dual 5.25” floppy drives for
storage• Pre installed software• OS CP/M• First Portable Computer• Had optional Battery Pack• Cost was $1795
1981
IBM PC• 4.77 Mhz Processor• 16K memory, upgradeable
to 640K • monochrome display• 5.25” floppy drives or
cassette drive for storage• Internal ISA expansion slots• Had a professional feel• OS was PC-DOS• Cost was $399
1982
Commodore 64• 1 Mhz Processor• 64K memory • 16 color display• 3 channels complex sound• Cassette Recorder or 5.25
“floppy drive for storage• Programs on Cartridge• OS was Basic• Regarded highly for gaming• 17 million sold• Cost was $595
1982
Epson HX-20• Two .614Mhz Processor• 16K memory,
upgradeable to 32k • 20x4 LCD display• Built in tape drive for
storage• Rechargeable Batteries• First Laptop Design• OS was Basic• Cost was $795
1983
IBM PC/XT• 4.77 Mhz Processor• 64K memory, upgradeable to
640K • 16 color display• 5.25” floppy drives for storage• 8 Internal ISA expansion slots• 10MB or 20MB hard drives• OS was MS DOS• Cost was $8000 (640K,10MB
hard drive)
1983
ColecoVision Adam• 3.58 Mhz Processor• 64K memory, upgradeable to
144K • 16 color display• High speed cassette for
storage• Compatible with ColecVision
game system Cartridges• Letter Quality Printer included• OS was Smart Basic from
cassette• Goal was to be all in one
family computer• Cost was $700
1984
Apple Macintosh• .89 Mhz Processor• 128K/512k memory • 9” Monochrome display• Internal 400K Floppy drive for
storage• Introduces The Graphical User
Interface (GUI)• Introduces GUI pointing device
“Mouse”• OS was Macintosh GUI• Cost was $2495
1985
Commodore Amiga 1000• 7.14 Mhz Processor• 256K memory, expandable to 8M • 4096 max color display• 880K floppy drives for storage• 32bit pre-emptive multi-tasking
GUI• 4channel Stereo sound• OS was Amiga Dos Workbench
GUI• Far superior to any system of the
time• Failed due to MS DOS
incompatibility and poor marketing• Cost was $1790
1986
Compaq Deskpro 386• 16 Mhz Processor• 32 bit processing• Split x86 bus into high and low
speeds• 4M memory, up to 36M • 16 color display• Hard drive storage• OS was MS DOS / Windows• Was turning point for IBM PC
dominance• Ushered in modern era of PC• Cost was $6195
1987
Tandy 1400lt• 4.77 or 7.16 Mhz• 32 bit processing• 640kb ram• 9” monochrome LCD• Hard drive storage• OS Tandy Dos 3• Was first real ibm compatible
laptop• 1200 baud modem• Cost was $1599
2005ThinkPad T Series T43p
• • Intel Pentium M 2.13Ghz Processor - Centrino
• • 15” TFT Active Matrix UXGA (1600x1200)
• • 1GB DDR II SDRAM Memory• • 80GB Hard Drive, 5400 rpm• • Hard Drive Auto Protection
System• • DVD-RW• • Integrated Centrino a/b/g
Wireless• • Integrated Gigabit Ethernet• • 56K Modem• • Lithium Ion Battery• • 6 lbs Travel Weight• • Microsoft Windows XP
2007
HP Compaq dc7600• 2.66 Ghz Processor• 1G memory Upgradeable • True color display• 80G hard drive for storage• DVD/CD drives for storage • USB connections for
peripherial attachment• 128M Graphics Card• Surround sound audio card• LCD Display• OS Windows Vista• Cost was $1695
?Questions
Conclusion
Since the Compaq Deskpro 386 Design has been very similar in personal computers of today. Processors have gotten faster and Storage has increased but the overall look and feel is still reminiscent of the Deskpro.
Refrences
(2007). PC Museum. Retrieved April 5, 2007,from PC Museum Web site: http://www.thepcmuseum.net/timeline.php
Polsson, K (2007). Chronology of personal computers. Retrieved April 5, 2007, from Chronology of Personal Computers Web site:http://www.islandnet.com/~kpolsson/comphist/
(2007). Old-Computers.com: History. Retrieved April 5, 2007, from Old-Computers.Com Web site:http://www.oldcomputers.com/history/timeline.asp