CIS 100 Computer History

1
CIS 100 Computer History

• Barbie Buckner
• Lee University
• Cleveland, Tennessee

2
Computer History

• Microcomputers
• tower
• desktop
• notebook (cost twice as much)
• Minicomputers
• terminal contains only keyboard and monitor
• Mainframe - larger, multiple users, central
  storing, management
• Supercomputer - Mac Daddy - big, fast, in a
  room on its own

3
Microcomputers

• 1st generation 8086
• 2nd generation 80286 or 286
• 3rd generation 80386 or 386
• SX DX DX processes twice as fast
• 4th generation 80486 or 486
• SX DX DX has a math co-processor
• 5th generation 80586, 586, Pentium
• 6th generation Pentium II
• 7th generation Pentium III
• 8th generation Pentium IV

4
Microcomputers

• AMD
• Cirux
• Duron
• Athlon
• K-4
• K-5
• K-6

5
ASCIIThe Computer Language

• American Standard Code for Information
  Interchange
• binary system (base 2)
• bit - one number within the binary system
• byte a series of eight bits

6
Base 2

• 21 2
• 22 4
• 23 8
• 24 16
• 25 32

• 26 64
• 27 128
• 28 256
• 29 512
• 210 1024

7
Crunching Numbers

• 1 byte
• 1024 bytes 1 kilobyte (KB)
• 1,048,576 bytes 1 megabyte (MB)
• 1,073,741,824 bytes 1 gigabyte (GB)