The CPU

The CPU

1. MAIN PART

   • BRAIN OF COMPUTER

2. THE CENTRAL PROCESSING UNIT

   • The central processing unit (CPU) is the unit which performs most of the processing inside a computer. To control instructions and data flow to and from other parts of the computer, the CPU relies heavily on a chipset, which is a group of microchips located on the motherboard.

3. FETCH- THE INSTRUCTION IS MOVED FROM MEMORY TO CPU

   • DECODE- THE INSTRUCT5ION IS UNDERSTOOD BY CPU.
     • EXECUTE- THE INSTUCTIONS IS THEN CARRIED OUT
       • Lastly CPU FETCHES top instructions from the list
         • this process is called fetch-decode- execute

4. The CPU and memory work together to run programs.

   • CPU - executes programs using the fetch-decode-execute cycle
     • Memory - stores program operations and data while a program is being executed. There are several types of memory, including: registers, cache, RAM and virtual memory.
       • Storage - stores programs and files long term, even when they are not in use. Devices such as hard drives, USB memory sticks or SD cards are used to store files such as photos, music and software applications long term.

5. parts of computer

   • RAM- stores data while powered
   • Motherboard- connects all the components
   • Power Supply- supplies power to the components
   • Fan- cools the components that may get hot.
   • Floppy Drive- Reads and writes information from floppy disks
   • Hard Drive- Reads and writes information from floppy disks