Computing

Computing

1. CPU

   • cores
     • more cores in your CPU, this makes it so you fetch-execute cycle faster as it can process more data in the CPU at one time.
   • clock speed
     • Over clocking is basically making the CPU working over time making your computer faster but it can make you CPU life fall as it over heats
   • to control the whole of the computer system like a brain

2. Memory

   • RAM and ROM
     • RAM
       • the purpose of RAM is to be a temporary storage for data.
     • ROM
       • ROM is a big thing in computers as they start up and down in the computer but the user can’t change ROM in computers.
   • Flash Memory
     • it is a non- volatile storage which can be electrically erased.
   • Cache Memory
     • cache memory is next to the CPU and make it easy to get to the data as RAM memory is furthers away.
   • Virtual Memory
     • it is main storage supported by secondary storage.

3. Input and output devices

   • we see input and output devices every day and they are part of everyday life for example: computer, they have a keyboard and mouse as a input and the monitor is and output.
   • they can be use people with specific need like death people: house phone has bigger buttons to dial a number and are louder so hard hearing people can hear the phone

4. secondary storage

   • storage technology
     • solid state storage means no moving parts and has electronic circuits
     • magnetic storage uses different patterns of magnetisation
     • optical storages are written and read with lasers common examples Blu-ray and CD, DVD
   • it is non-volatile which it holds data until it is deleted or overwritten