Computer Input and Output Devices

Input Devices

• Keyboards:
  • Allow users to input text and commands into a computer
  • Typically consist of a set of keys, including alphabetic, numeric, and functional keys
  • Can be wired or wireless

Output Devices

• Printers:
  • Produce physical copies of digital data
  • Types: Inkjet, Laser, 3D
  • Can be connected via USB, Wi-Fi, or Ethernet
• Speakers:
  • Produce audio output from a computer
  • Can be internal or external
  • Types: 2.0, 2.1, 5.1, and 7.1 channel configurations
• Monitors:
  • Display video output from a computer
  • Types: CRT, LCD, LED, OLED
  • Measured in inches (e.g., 22", 24", 27")

Storage Devices

• Hard Drives:
  • Store data persistently on a physical medium
  • Types: HDD (Hard Disk Drive), SSD (Solid-State Drive)
  • Measured in gigabytes (GB) or terabytes (TB)
  • Can be internal or external

Input Devices

• Keyboards allow users to input text and commands into a computer
• Keyboards typically consist of a set of keys, including alphabetic, numeric, and functional keys
• Keyboards can be wired or wireless

Output Devices

• Printers produce physical copies of digital data
• Types of printers include Inkjet, Laser, and 3D
• Printers can be connected via USB, Wi-Fi, or Ethernet
• Speakers produce audio output from a computer
• Speakers can be internal or external
• Types of speaker configurations include 2.0, 2.1, 5.1, and 7.1 channel configurations
• Monitors display video output from a computer
• Types of monitors include CRT, LCD, LED, and OLED
• Monitors are measured in inches (e.g., 22", 24", 27")

Storage Devices

• Hard Drives store data persistently on a physical medium
• Types of Hard Drives include HDD (Hard Disk Drive) and SSD (Solid-State Drive)
• Hard Drives are measured in gigabytes (GB) or terabytes (TB)
• Hard Drives can be internal or external