Computer

Computer

1. CPU

   • What does CPU stand for?
     • Central Processing Unit.
   • What does the CPU do?
     • It is the brains of the computer.
   • What are the different parts of the CPU?
     • Control unit and arithmetic logic unit.
   • What do these different parts do?
     • ALU does the calculations inside the CPU.
     • The control unit makes sure all the insrtuctions go to the right place.
   • What is the clock speed? How is measured? Why is it important?
     • In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor. Clock speed is usually measured in MHz (megahertz, or millions of pulses per second) or GHz (gigahertz, or billions of pulses per second)
     • Clock speed is usually measured in MHz (megahertz, or millions of pulses per second) or GHz (gigahertz, or billions of pulses per second). Today's personal computers run at a clock speed in the hundreds of megahertz and some exceed one gigahertz
     • It is important so you know how fast things are process

2. RAM

   • RAM stands for Random Access Memory.
   • Everything that you have open at the time is stored on the RAM.
   • RAM is volatile as it retains its memory when the power is turned off.

3. ROM