Card Set Information

2011-06-07 21:32:20

IT Essential Course Vocabulary
Show Answers:

  1. Hardware
    Physical electronic components that make up a computer system.
  2. Software
    Includes the operating system and programs
  3. Ohm's Law
    The mathmatical relationship between current, resistance, and voltage, in which voltage is equal to the current multiplied by the resistance.
  4. central processing unit (CPU)
    Interprets and prcesses software instructions and data. Located on the motherboard, the CPU is a chip contained on a single integrated circuit called the microprocessor. The CPU contains two basic components, a control unit and an Arithmetic/Logic Unit (ALU).
  5. cache
    a data storage area that provides high-speed access for the system.
  6. Reduced Instruction Set Computer (RISC)
    An architecture that uses a relatively small set of instructions. RISC chips are designed to execute these instructions very rapidly.
  7. Complex Instruction Set Computer (CISC)
    An architecture that uses a broad set of instructions, with several choices for almost every operation. The result is that a programmer can execute precisely the command needed, resulting in fewer instructions per operation.
  8. hyperthreading
    The CPU has multiple pieces of code being executed simultaneously on each pipeline.
  9. single-core CPU
    One core inside a single CPU chip that handles all the processing capability. A motherboard manufacturer may provide sockets for more than a single processor, providing the ability to build a powerful multiprocessor computer.
  10. dual-core CPU
    Two cores inside a single CPU chip. The core can be used together to increase speed, or they can be used in two locations at the same time.
  11. read-only memory
    Memory that permanently stores prerecorded configuration settings and data on a chip that can only be read. This type of memory retains its contents when power is not being supplied to the chip.