Unit 1.ppt

Unit 1: Computing: A Historical Perspective CC 201 – Introduction to Computing Early Calculating Machines  Abacus  Slide rule Early Calculating Machines  Mechanical calculator  Stepped reckoner Early Calculating Machines  Textile industry – Jacquard Loom  Difference engine Evoluti...

Unit 1: Computing: A Historical Perspective CC 201 – Introduction to Computing Early Calculating Machines  Abacus  Slide rule Early Calculating Machines  Mechanical calculator  Stepped reckoner Early Calculating Machines  Textile industry – Jacquard Loom  Difference engine Evolution of Calculating Machines: From Early Inventions to Modern Technology  Analytical engine  The 1890 Census machine Evolution of Calculating Machines: From Early Inventions to Modern Technology  ENIAC  The transistor Evolution of Calculating Machines: From Early Inventions to Modern Technology  The Personal Computer (PC)  The Internet 5 Generations of Modern Computers  1st Generation 1945 - 1956  Made to order operating instructions  Different binary coded programs told it how to operate  Difficult to program and limited versatility and speed  Vacuum tubes  Magnetic drum storage 2nd Generation 1955- 1963  Transistors  Memory - magnetic core  Assembly language  Printers and memory  Programming languages  Careers 3rd Generation 1964 - 1971  Quartz clock  Integrated circuit  Operating systems 4th Generation 1971 - now  LSI - Large Scale Integration  VLSI- Very Large Scale Integration (ULSI)  Chip  General consumer usage  Networks 5th Generation  The fifth gen of computers is the most recent and advanced computers. These computers are extremely dependable and employ ULSI technology. Pioneers of Computing Charles Konrad Zuse John von Neumann Babbage Pioneers of Computing Alan Turing Steve Jobs Important Machines  IBM 700 Series  IBM 360/370 Series  CDC star  Cray 1  DEC VAX  IBM PC  Apple McIntosh Taxonomy of Computers  Mainframes  Minis  Micros  Supercomputers  Embedded Don’t Forget the Chip  Computers are used in many different technologies  For example: bread machine, ATM, cars, TV, microwave, cash register, etc.