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Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
Understanding computers ch 1
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Understanding computers ch 1

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Transcript

  • 1. Understanding Computers Basic Computers L. Stack
  • 2. Vocabulary Words
    • Hardware :The equipment that makes up a computer
    • Central Processing Unit (CPU): hardware that directs how information flows in, out, and through a computer
    • Hard Drive: a tool, built into the computer, for storing data and instructions.
    • Keyboard: the set of keys with numbers and letters used to type information into a computer.
  • 3. Vocabulary Words
    • Mouse: a pointing tool that you move with your hand.
    • Monitor: a screen that shows information on a computer
    • Input: the information that is put into a computer.
    • Output: the information that comes out of a computer
    • Software: a set of instructions that tells a computer what to do.
  • 4. Vocabulary Terms
    • Processing – entering data into the computer
    • Storage – saving data, programs, or output for future use.
    • Data – Raw, unorganized facts
    • Information – Data that has been processed into a meaningful form
    • Communication – The transmission of data from one device to another.
  • 5. What is a computer?
    • A computer is a machine that uses a set of instructions to do many kinds of jobs.
    • A computer can do math.
    • It can collect, store, and display information.
    • It can help write, draw and play games.
    • It can also let you communicate with people all over the world.
  • 6. Computers in Your Life
    • Before 1980
      • Computers were large and expensive
      • Very few people had access to them
      • Computers were mostly used for high-volume processing tasks
    • Microcomputers in the early 80s
      • Inexpensive personal computers
      • Computer use increased dramatically
    • Today
      • More than 80% of US households include a computer, and most use computers at work
      • Electronic devices are converging into single units with multiple capabilities
    Understanding Computers in a Changing Society, 4 th Edition
  • 7. Types of Computers
    • Personal Computers , PC, Macs, Desktops, Lap tops and Netbooks.
    • Computers on the Go consumer kiosks ATM machines. Portable computers and Web-enabled mobile devices
    • Mainframe Very large computer
    • Supercomputer very fast computer
  • 8. Types of Computers
    • A personal computer or PC : is a small computer made to be used by one person at time.
    • It can do a few jobs at one time.
    • People often use personal computers at home, in school or on the job.
    • Sometimes personal computers can be linked together to allow more than one person to share or access the same information.
  • 9. Mainframe
    • A mainframe is a very large computer compared to a personal computer.
    • It can be as big as a refrigerator.
    • They can store huge amounts of information and can do many jobs at the same time.
  • 10. Supercomputers
    • Supercomputer is a very fast computer.
    • Supercomputers are used to do jobs at the fastest speed possible.
    • Often called crunchers.
  • 11. Uses for Personal Computers
    • School / Home
    • Take computerized tests.
    • Present computerized reports.
    • Write letters
    • Play video games.
    • Buy things on the internet.
    • Chat on line
    • Send e-mails
    • Home/ Work
    • Send e-mails.
    • Track inventory
    • Create memos
    • Create agendas
    • Create presentations
    • Record keeping
  • 12. Uses of Mainframes
    • Telephone companies
    • TV studios
    • Transportation departments control traffic signals, railroads and subways
    • Banks keep track of money
    • Supermarket keep track of goods and prices
    • Companies keep track of work records, print bills and track customer payments.
  • 13. Uses of Supercomputers
    • Weather forecasting predict weather.
    • Air Traffic controllers locate and track air plains.
    • NASA launches rockets and guides the space shuttles.
    • Artist make animated graphics.
    • Sportscasters figure sport teams statistics
  • 14. Computers Then
    • Precomputers Dr. Herman Hollerith’s Punch Card Tabulatin Machine and Sorter used to process the 1890 U.S. Census data.
    • First –Generation Computers 1946-1957 The were very big and powered by thousands of vacuum tubes. ENAIAC
  • 15. Computers
    • Precomputers
    • First Generation Computer
  • 16. ENIAC Electronic Numerical Integrator and Computer.
    • One of the first computers.
    • Built in 1945 by J. P. Echert JR. and J. W. Mauchly.
    • Much larger than today's computers made up of 40 separate units.
    • Weighed as much as four adult African elephants .
    • Had to set thousands of switches and rewrite the machine. Worked for 9 years.
  • 17. Computers
    • Second Generation
    • Third Generation
  • 18. Computers
    • Fourth Generation
    • Fifth Generation
  • 19. Parts of a computer
    • All the equipment that makes up a computer is called the computers hardware.
    • Printer
    • Monitor
    • Keyboard
    • Central Processing Unit (CPU) or Processor
    • Mouse
    • Computer Case
    • Hardware
  • 20. Computer Parts
  • 21. Functions of Hardware
    • CPU
    • CPU directs how information flows in, out and through the computer.
    • It is the part that does the math and other jobs performed by the computer.
    • It is also called the processor.
    • Hard Drive
    • The hard drive is a tool for storing data and instruction.
    • It is built into the computer’s case.
    • A hard drive is like a filing cabinet. It h olds information until you need it.
  • 22. Hardware functions
    • Keyboard / Mouse
    • The keyboard is a set of keys with numbers and letters, used to type information into the computer.
    • The mouse is a pointing tool that you move with your hand.
    • Both the keyboard and mouse let you tell the computer what you want it to do
    • Monitor / Printer
    • The monitor is a screen that shows information on a computer.
    • Printer lets you make paper copies of the work you do on the computer.

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