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Graphics processing unit (GPU)

A GPU is a microprocessor that performs the calculations to produce high-quality graphic images on a screen. Originally the central processing unit (CPU) performed these calculations. As more complex graphics were developed, the GPU was introduced to take over these tasks, freeing up the CPU to perform other tasks.

Integrated GPU

An integrated GPU is built into the motherboard and is cheaper than a dedicated graphics card. It generates less heat and uses less power and is suitable for general graphics processing, such as watching or editing videos.

Dedicated GPU

A dedicated GPU has its own video memory and is installed on a separate graphics card. These provide the best visual quality and are used by graphic designers and serious gamers, but they use more power and generate more heat than an integrated GPU.

Motherboard

The motherboard is the main circuit board of a computer. It connects the CPU and read only memory (ROM), which are mounted on the motherboard, and includes random access memory (RAM) expansion slots.

Sound cards

Sound cards are usually included on the motherboard but they may be added to it separately. They enable the computer to record sound from a microphone, edit it, and output sound to the speakers.