What is contained within a system unit?

The system unit is a vital component of a computer that houses the essential hardware necessary for processing and storing data. The correct answer, which includes the CPU (Central Processing Unit), power supply, memory (both RAM and storage such as a hard drive or SSD), accurately reflects what is contained within the system unit.

The CPU is often referred to as the brain of the computer, executing instructions and processing data. Memory allows for temporary data storage that is needed while the computer is running programs, while the storage component is crucial for keeping files and information even when the computer is turned off. The power supply is also integral as it converts electrical power from an outlet into usable power for the system’s components.

In contrast to this, the other options include components that are either external to the system unit or not part of the core components. Peripherals like monitors and keyboards, which enable user interaction with the computer, are essential for operations but are considered outside of the system unit itself. Understanding the distinctions between these components is critical when discussing computer architecture and functionality.