CPU, RAM and ROM

CPU, RAM and ROM

1. CPU

   • Central Processing Unit
     • The computer's brains where most of the calculations take place
   • Power Supply: Supplies the power for the computer.
     • CD/DVD: Lets you insert a DVD/CD
       • Processor and Fan: Processes the information and calls down the whole of the CPU.
         • Hard Drive: Lets you hold a CD/DVD.
   • Arithmatic and logic unit.

2. ROM

   • Read Only Memory
     • The ROM stores information that can be read. This makes it very difficult to improve it. Also if the monitor turns of all unsaved data will be lost.

3. RAM

   • Random Access Memory
   • RAM is a type of computer data storage. A RAM device makes it possible to access data in random order, which makes it very fast to find a specific piece of information. Certain other types of storage are not random access. For example a hard disk drive and a CD will read and write data in a predetermined order. The mechanical design of these devices prescribes that data access is consecutive. This means that the time it takes to find a specific piece of information can vary greatly depending on where it is located on the disk.