Your SlideShare is downloading. ×
0
History of the Computer
History of the Computer
History of the Computer
History of the Computer
History of the Computer
History of the Computer
History of the Computer
History of the Computer
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

History of the Computer

8,625

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
8,625
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
46
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Three Part Objective (TPO) <ul><li>Students will continue to learn and discuss the history of computers and be able to identify the 5 generations of computing through a PowerPoint presentation, interactive handout, and class discussion . </li></ul>
  • 2. History of the Computer
  • 3. How the Computer Evolved <ul><li>1642 Blaise Pascal – mechanical adding machine </li></ul><ul><li>Early 1800’s Jacquard – uses punch cards to control the pattern of the weaving loom </li></ul><ul><li>1822 Charles Babbage - invents the Difference Engine </li></ul><ul><li>1890 Herman Hollerith – invents a machine using punch card to tabulate info for the Census </li></ul>Hollerith’s Tabulating Machine
  • 4. Evolution (continued) <ul><li>1910 Charles Watson Sr. – International Business Machines </li></ul><ul><li>1946 – Mauchly and Eckert created the ENIAC computer, first electronic computer is unveiled at U. of Pennsylvania </li></ul><ul><li>1970’s – Integrated circuits and silicon chips lead to smaller microprocessors </li></ul>                                                  
  • 5. ENIAC Computer <ul><li>Miles of wiring </li></ul><ul><li>18,000 vacuum tubes </li></ul><ul><li>Thousands of resistors and switches </li></ul><ul><li>No monitor </li></ul><ul><li>3,000 blinking lights </li></ul><ul><li>Cost $486,000 </li></ul><ul><li>100,000 additions per second </li></ul><ul><li>Weighed 30 tons </li></ul><ul><li>Filled a 30x50 foot room </li></ul><ul><li>Could be replaced today by one fingernail-size silicon chip </li></ul>
  • 6. Computer Generations 1st 2nd 3rd 4th 5th Timeframe 1951-1958 1959-1964 1965-1974 1975-1989 1990-present Circuit Components Vacuum Tubes Transistors Integrated Circuits (IC) Large-scale IC (LSI) Very Large IC (VLSI) Memory Capacity 4,000 Bits 32,000 Bits 128,000 Bits 100 Million Bits Unlimited Data Input Hard Wired Program in computer Punch Cards Keyboard Entry Read Programs off Disk CDROM, Optical Disk
  • 7. Computers Are Everywhere <ul><li>Laptop Computers </li></ul><ul><li>Appliances </li></ul><ul><li>Cars </li></ul><ul><li>Medical Equipment </li></ul><ul><li>Running Shoes </li></ul><ul><li>Printers </li></ul><ul><li>Game Consoles </li></ul>
  • 8. Reflection <ul><li>How have computers/microelectronics changed our lives? </li></ul><ul><ul><li>Communicate </li></ul></ul><ul><ul><li>Cook </li></ul></ul><ul><ul><li>Entertainment </li></ul></ul><ul><ul><li>Work </li></ul></ul>

×