Computer chips, also known as microchips, are small pieces of semiconductor material that have an embedded semiconductor. The most common type is the CPU, which contains the entire processing unit or microprocessor. Chips are placed on printed circuit boards and come in different packages, such as DIPs, PGAs, and SIPs, which refer to their shape and arrangement of pins. SIMMs are modules that package multiple chips together as a single unit. These chips are the main components that power computers.