Devices of a computer

• What are the physical, touchable, electronic, and mechanical parts of a computer called?


  Hardware
• What are the basic devices found in most Personal Computers?

  • System Unit
  • Motherboard
  • CPU
  • Primary Storage
  • Expansion Bus
  • Adapters
  • Power Supply Unit
  • Hard Disk Drive
  • Optical Drive
• What is another name for the motherboard?

  Mainboard
• What does the motherboard contain?

  All the circuits and components that run the computer.
• What is the role of the CPU in a computer system?

  It performs all instructions and calculations needed by the computer.
• What is primary storage in a computer?

  It is the working storage space that holds data and instructions for processing.
• What are the two types of memory in a computer?

  • ROM (Read Only Memory)
  • RAM (Random Access Memory)
• What is the difference between ROM and RAM?

  ROM is non-volatile, while RAM is volatile.
• What does the Expansion Bus do in a computer?

  It serves as a data pathway between hardware components.
• What are adapters in a computer system?

  Printed-circuit boards that enable the use of peripheral devices.
• Where is the Power Supply Unit (PSU) located in a PC?

  In the back corner of the PC case, next to the motherboard.
• What is the function of the Power Supply Unit (PSU)?

  It converts AC power into DC voltages for other components.
• What is a Hard Disk Drive (HDD)?

  A magnetic storage device used for permanent data storage.
• What is the typical configuration of a hard drive in a Windows computer?

  It is usually configured as the C: drive.
• What is an Optical Drive?

  A storage device that uses lasers to read data on optical media.
• What are the types of optical drives?

  • Compact Disc (CD)
  • Digital Versatile Disc (DVD)
  • Blu-ray Disc (BD)
• How does a Digital Versatile Disc (DVD) access data?

  A laser moves back and forth near the disk surface to access data quickly.
• What does the Power Supply Unit (PSU) do?

  It converts 120vac into DC voltages for other components.
• What is typically configured as the C: drive in a Windows computer?

  The hard drive.
• the main part of a microcomputer

  System Unit
• System unit is also called?

  chassis