Computer Fundamentals unit content

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  • Computer Fundamentals
    • Software
      • definition of problem
      • information collection
        • questionnaires
        • observation
        • interviews
      • design
      • implementation
      • testing
      • installation
      • data documentation
      • feasibility study
      • maintenance
      • interface
        • GUI
        • natural language
        • forms
        • menus
        • command line
    • Data
      • binary
        • octal
        • hex
        • BCD
        • two's complement
        • sign and magnitude
      • code to represent characters
        • ASCII
        • EBCDIC
        • UNICODE
      • automatic methods of gathering information
        • OMR
        • OCR
        • voice recognition
        • barcode
        • touch screen
        • MICR
        • chip and pin
        • sensor
        • remote data logging
      • validation and verification
      • backing up and archiving
    • Hardware
      • registers
        • program counter
        • MAR
        • MDR
        • current instruction register
        • accumulator
      • buses
        • data address
        • control bus
      • Processor
        • Memory Unit
        • Control Unit
        • ALU
      • primary memory
        • ROM
        • RAM
        • buffers
        • interrupts
      • secondary storage
    • Data  transmission
      • LAN
      • WAN
      • types of transmission
        • serial
        • parallel
        • simplex
        • half duplex
        • duplex
      • correcting errors
        • sum checking
        • parity checking
        • echoe checking
      • switching
        • packet
        • protocol
          • physical
          • logical
        • circuit
    • implications of computer use
      • economical
      • social
      • legal
        • Data Protection Act 1998
      • ethical
      • privacy confidentiality

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