Memory

Memory

1. RAM

   • RAM is volitile memory that you use only when you are on the computer.
   • Volitile memory is memory which erases as soon as the computer turns off.
   • The purpose of the RAM is to run programs that you use whilst on the computer.
   • You find RAM near the CPU on the motherboard.
   • It stands for random access memory.

2. ROM

   • ROM is non-Volitile memory that is the boot up program.
   • It stands for Read only memory because you cannot change it, only read it.
   • It is located near the CPU on the motherboard.
   • Non-volitile memory is memory hat is part of the boot up program. It is always there even when the computer is turned off.
   • The purpose of the ROM is o contain the information that the computer needs to work at the beginning. It allows the computer to turn on and start functioning.

3. Virtual memory

   • It is located in the hard-drive, and is swapped with information from the RAM.
   • Virtual memory is volitile as it is only temporary to help the RAM.
   • Virtual memory is extra memory that the hard-drive swaps with memory from the RAM if it is too busy.
   • The purpose of virtual memory is to help the RAM if it is too busy. It works by switching the less used data with the data needed by the CPU.
   • Virtual memory is much slower than normal memory because most of the processing power is taken up by moving the information around rather than executing it.

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