tech in act chap 2

Card Set Information

Author:
Anonymous
ID:
16151
Filename:
tech in act chap 2
Updated:
2010-04-25 18:26:31
Tags:
tech act
Folders:

Description:
tech
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. A computer’s four major functions:
    – Gathers data (users input data)

    – Processes data into information

    – Outputs data or information

    – Stores data and information
  2. Bit
    – Binary digit

    – 0 or 1
  3. Byte
    – 8 bits

    h l b d h

    Each letter, number, and character = a

    string of eight 0s and 1s
  4. Two broad categories of software
    – Application software

    – System software
  5. Monitor Types
    • CRT (Cathode­Ray Tube )

    • LCD (Liquid Crystal Di l )
  6. Printers
    • Impact printers:
    • – Dot­matrix

    • • Nonimpact printers
    • – Inkjet
    • – Laser

    • • Specialty printers
    • – Multifunction
    • – Plotters
    • – Thermal printers
  7. The System Unit
    • Box that contains the central electronic components of the computer:

    • – CPU/RAM/
    • - motherboard
    • – Expansion cards

    Expansion cards

    • –Power supply
    • - Storage devices
  8. Inside the System Unit
    Essential electronic components used to process data

    • • Types of components:
    • – Power supply
    • – Hard disk drive
    • – Motherboard
    • – CPU

    Expansion cards – Expansion cards
  9. The Motherboard
    • • CPU
    • • RAM
    • • Expansion cards and slots
    • • Built­in components
  10. Central Processing Unit (CPU)
    • • Referred to as the “brains” of the computer
    • • Controls all functions of the computer
    • • Processes all commands and instructions
    • • Can perform billions of tasks per second
  11. Memory Module
    • • Random access memory (RAM)
    • • Stores instructions and data
    • • Temporary (volatile) storage
    • • Operates in nanoseconds
  12. Specialty Computers
    • • Mainframes
    • • Supercomputers
    • • Embedded computers

What would you like to do?

Home > Flashcards > Print Preview