Identify the Names Purposes and Characteristics of Cases and Power Supplies

Last Updated on Mon, 16 Jan 2023 | Operating Systems

The computer case provides protection and support for the computer's internal components. All computers need a power supply to convert alternating-current (AC) power from the wall socket into direct-current (DC) power. The size and shape of the computer case is usually determined by the motherboard and other internal components.

You can select a large computer case to accommodate additional components that may be required in the future. Other users may select a smaller case that requires minimal space. In general, the computer case should be durable and easy to service and should have enough room for expansion.

The power supply must provide enough power for the components that are currently installed and allow for additional components that may be added later. If you choose a power supply that powers only the current components, it may be necessary to replace the power supply when other components are upgraded.

After completing this section, you will meet these objectives:

■ Describe cases.

■ Describe power supplies.

Continue reading here: Connectors

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Readers' Questions

  • juli
    Which is an internal power supply unit of cpu?
    1 month ago
    • A CPU (Central Processing Unit) has an internal power supply unit that provides the power required for the CPU to operate. It is typically a switching power supply, which converts the mains AC (alternating current) electricity to a regulated low-voltage DC (direct current) power supply. This power supply powers the CPU and other components on the motherboard.
    • Erin
      How to tell what kind of power supply i have?
      2 months ago
      • If you have a desktop computer, the power supply will be visible from the outside of the case and you should be able to identify it by the branding on the unit. If the power supply is not visible from the outside, you will need to open the case and look for a label on the power supply for the brand, model, and wattage. You can also check your system's manual or specifications online if available.
      • maunu
        What is the purpose of 12v in computer power supply?
        1 year ago
        • The 12V rail in a computer power supply is used to provide power to the motherboard, the processor, and other components that require a steady 12V DC power source. It is the most important rail in a computer power supply as it is used to distribute power to the most critical components in the system.
        • abigail macleod
          What are the purposes and characteristics of a case and a power supply?
          1 year ago
          • A case is a physical enclosure used to hold and protect the components of a computer system, also known as a chassis. The case provides protection against physical damage and keeps the system dust-free. It also helps in heat dissipation by providing ventilation. The case also serves as the mounting hardware for other components and may provide cable management features. A power supply is a device that converts alternating current (AC) electricity from the wall outlet to direct current (DC) electricity. It supplies power to the other components of the system, such as the processor, motherboard, hard drives, optical drives, and more. A power supply can also provide protection against electrical surges and power spikes.