CPU parts

Computer cable types:

HDMI(High-Definition Multimedia Interface)

• It is a type of cable or connector  which carries audio/video signal from source device to the connected device. 
• The information sent over HDMI is uncompressed digital data.
• Which carries high definition audio,video signals from source device to the sync device.

VGA( Video Graphics Array) cable

• It is a type of cable which carries visual display data from the CPU to the monitor.
• One end of the VGA cable is attached to the port in the graphics card on the computer motherboard, and the other to the port in the display device.
• It only carries analog signals.

DVI (Digital Visual Interface)

• It also carries video signals from source to display device.
• It carries both analog and digital signals.
• Video quality is better than the VGA .

CPU parts:

SMPS(Switch Mode Power Supply)

• The main function of SMPS is to convert AC current to DC and supply it to motherboard.
• The power supply converts the alternating current (AC) line from your home to the direct current (DC) needed by the personal computer.

RAM(Random Access Memory)

• Ram is stored inside the CPU.
• It is a type of volatile memory(it loses its content when power is lost).
• The process which are currently used stays in the RAM. Once the power lose the whole content is deleted from the RAM.

Hard disk

• It is used to store the data.
• It contains Magnetic platters, arm, motor

platters: 
        Platters are the round plates in a hard disk. Each platter stores certain amount of information in it.
Arm:
      The arm is the piece sticking out over the platters. The arm contains read and write heads. Which are used to read and store the information to the platters.

Motor:
     The motor is used to spin the platters  4,500 to 15,000 rotations per minute (RPM).
If the motor speed is high then the processor also works fast.

Mother board
The mother board is a printed circuit board.
It is used to communicate all the hardware components of CPU.

Processor
The processor acts as the computer's brain, running programs and sending and receiving signals to attached devices to keep the computer running.