2.3 CPU: Central Processing Unit


CPU: Central Processing Unit

The CPU is essentially the computer’s brain. All of the information is processed computationally.

It retrieves data from the RAM and processes it to execute the necessary tasks for the computer.

Typically, it is inserted in a connector that uses a slider or a latch with either a hinged plate and a hole in the middle to lock it to the motherboard.

It has several copper pads below it for the socket connections to make electrical contact with.

There are more methods for attaching CPUs to the motherboard.

Here are some common examples:

  • ZIF (Zero Insertion Force): Despite being a more desirable socket, they are typically only available on older computer motherboards. A lever-operated device for clamping the processor’s pins.
  • PGA (Pin Grid Array): This is likewise a ZIF socket, however it has a different pin pitch and pin count.
  • LGA (Land Grid Array): More prevalent on modern motherboards. The processor is secured by a levered, two – piece plate with a central cutout.
  • BGA (Ball Grid Array) refers to CPUs that are soldered directly to the motherboard. This makes it a non-replaceable component. It is vulnerable to connection issues.

A CPU creates a considerable amount of heat, particularly when operating under heavy loads.

It will run extra hotter if its clock speed is increased to make it run quicker. The term for this is overclocking.

That’s why a heatsink and fan combination is necessary to remove heat from the CPU and transfer it to thin metal sheets or fins for the fan to cool. There are several varieties of processors. The leading computer manufacturers are Intel, AMD, and NVidia.