The Components Of The Computer

The Components Of The Computer

1. CPU

   • Fetch, Decode and Execute
   • Brain of the computer
   • Central processing unit
   • cache memory
   • clock speed
   • hertz (Hz) 4GHz clock speed
   • arithmetic logic unit (ALU)
   • central unit (CU)
   • immediate Access Store (IAS)_

2. RAM

   • Random access memory
   • volatile storage
   • temporarily stores all the opened up windows
   • sits on the motherboard
   • 4Gb RAM

3. ROM

   • Read only memory
   • contains the start up information
   • also contains the operating system
   • Non-volatile

4. computer performance

   • depends on the speed on the CPU
   • how much RAM and ROM
   • not all about price
   • short response time for a given piece of work

5. virtual memory

   • used when RAM is running low
   • slower than RAM
   • it is used when the computer is running many processes at once
   • Virtual memory is simulated memory that is written to a file on the hard drive.

6. Motherboard

   • the heart of the computer
   • where everything connects to
   • the centre piece