computer generations lecture

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Page 1: Computer generations lecture
Page 2: Computer generations lecture

NAME: PUSHPENDER SINGH

TANWAR

ROLL NO: 29

CLASS : VIII A

Page 3: Computer generations lecture

Time Frame Circuit Components Elements per Component Internal Storage Memory Capacity Data Input Popular Computers and Companies at

that time

Page 4: Computer generations lecture

Vacuum Tubes Magnetic Drum 4,000 bits Hard Wire Programs in computers IBM 650, Univac I ENIAC

Page 5: Computer generations lecture

Transistors Magnetic Cores 32,000 bits Punch Cards CDC, GE, IBM

Page 6: Computer generations lecture

Silicon Chips (Integrated circuits)= IC Cores, IC’s 128,000 bits Keyboard Entry IBM, NCR, Honeywell

Page 7: Computer generations lecture

Silicon Chips (Large scale integrated circuits)=LSI

IC’s, LSI’s 100 million bits Read programs off disks Apple, Xerox, Texas Instrument,

Hewlett-Packard

Page 8: Computer generations lecture

Silicon Chips ( Very Large Integrated Circuits) VLSI

LSI’s, VLSI’s Unlimited CdRom, Optical Disk NEC, Packard Bell, Compaq, Other

Clones

Page 9: Computer generations lecture