Some Terms

• Paragraph on the middle of 13,
  • Some experts predicted at that time (1950) that a small number of computers would be able to handle the computational needs of mankind
  • But the ability to calculate quickly has changed many fields
  • Math, physics, engineering, economics
  • Weather Simulation
  • Nuclear Testing
  • Stock Market (electronic trading)
• Auxiliary Storage Devices
  • Not main memory
  • Disks, tape, ...
• Peripheral devices
  • I/O devices
  • Auxiliary Storage
  • Outside of CPU and memory
• Computer Systems
  • Supercomputer tens of millions
  • Mainframe Millions
  • Mini up to 500K
  • Workstations up to 50K
  • Micro/Personal - up to 5K
• Instruction Sets
  • Complex Instruction Set Computer (CISC)
  • Reduced Instruction Set Computer (RISC)
• Ethernet
  • A protocol/technology invented in 1973
  • Allows two computers to be connected and communicate
  • A major change?
• Internet
  • ARPANET - 1960's
  • TCP/IP
  • packet