The History of the Computer

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The History of the Computer

  1. 1. The History Of The Computer By: Sara Poirier
  2. 2. First Programmable Computer <ul><li>The Z1 was created in Germany by Korad Zuse in 1936. </li></ul>
  3. 3. The Z1 <ul><li>The Z1 had a 64-word memory and a clock speed of 1Hz. To program the Z1 required that the user insert punch tape into a punch tape reader. All output was generated with punch tape. </li></ul>
  4. 4. The First Digital Computer <ul><li>The ABC (short for Atanasoff-Berry Computer) started being developed by Professor John Vincent Atanasoff and Graduate Student Cliff Berry in 1937 and continued to be developed until 1942. </li></ul>
  5. 5. Atanasoff-Berry Computer (ABC) <ul><li>The ABC was the first electronic digital computing device. Conceived in 1937, the machine was not programmable, but designed only to solve systems of linear equations. </li></ul>
  6. 6. The First Computer With RAM <ul><li>MIT introduces the Whirlwind machine March 8, 1955, a revolutionary computer that was the first digital computer with magnetic core RAM and real-time graphics. </li></ul>
  7. 7. The First Transistor Computer <ul><li>The TX-O (Transistorized Experimental computer) and first transistorized computer is demonstrated at the Massachusetts Institute of Technology in 1956. </li></ul>
  8. 8. The First Stored Program Computer <ul><li>The early British computer known as the EDSAC is considered to be the first stored program electronic computer. </li></ul>
  9. 9. The EDSAC <ul><li>The computer performed its first calculation on May 6, 1949 and was the computer that ran the first graphical computer game. </li></ul>
  10. 10. The First Minicomputer <ul><li>In 1960 Digital Equipment Corporation (DEC) released its first of many PDP computers the PDP-1. </li></ul>
  11. 11. PDP-1 <ul><li>PDP (Programmable Data Processor) was a series of computers developed by digial. The PDP-1 was developed in 1960, had five-megacycle circuits, a magnetic core memory, and fully parallel processing with a computation rate of 100,000 additions per second. </li></ul>
  12. 12. The First Personal Computer <ul><li>In 1975 Ed Roberts coined the term personal computer when he introduced the Altair 8800. </li></ul>
  13. 13. The Micral <ul><li>The Micral is considered the be the first commercial non-assembly computer. The computer used the Intel 8008 processor and sold for $1,750 in 1973. </li></ul>
  14. 14. The First Workstation <ul><li>Although never sold the first workstation is considered to be the Xerox Alto, introduced in 1974. </li></ul>
  15. 15. The First Laptop <ul><li>The first portable computer or laptop is considered to be the Osborne I, which was released on April 1981. </li></ul>
  16. 16. Osborne 1 <ul><li>The Osborne I was developed by Adam Osborne and weighed 24 pounds, had a 5-inch display, 64 KB of memory, two 5 1/4&quot; floppy drives, and a modem. </li></ul>
  17. 17. The First PC Computer <ul><li>On April 7, 1953 IBM publicly introduced the 701, its first electric computer and first mass produced computer. </li></ul>
  18. 18. The 701 <ul><li>First introduced on April 7, 1953, the 701 was IBM's first electric computer and the first mass produced computer. The machine has 256 40-bit words of main memory and can perform 2,200 multiplications per second. </li></ul>
  19. 19. The First PC Clone <ul><li>The first PC clone was developed by Compaq, the &quot;Compaq Portable&quot; was release in March 1983 and was 100% compatible with IBM computers and software that ran on IBM computers. </li></ul>
  20. 20. The First Apple Computer <ul><li>Steve Wozniak designed the first Apple known as the Apple I computer in 1976. </li></ul>
  21. 21. The Apple 1 <ul><li>The Apple I ( Apple 1 ) is the first Apple computer and originally sold for $666.66. The computer kit was developed by Steve Wozniak in 1976 and contained a 6502 8-bit processor and 4 kb of memory, which was expandable to 8 or 48 kb using expansion cards. </li></ul>
  22. 22. Sources <ul><li>http://www.computerhope.com/issues/ch000984.htm </li></ul><ul><li>http://en.wikipedia.org/wiki/Atanasoff%E2%80%93Berry_Computer </li></ul><ul><li>Google images </li></ul>
  23. 23. ;) THE END

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