An Overview of PC Input Devices - CompTIA A+ 220-801: 1.12

Mouse

• Like the keyboard uses USB if wired
• Or an adapter for the PS/2
• Old mice used the serial port
• New optical mice have few moving parts
• May need the right surface
• Glass may cause a problem

Keyboard

 

 

•  Newer keyboards are connected via USB
• Or an adapter for PS/2

• Additional features may require additional drives and/ or software 

 Touch screen

 Scanner 

• All-in-one
• Flatbed

Barcode reader

• USB connectors
• And perhaps PS/2
• Laser scanners can be seen
• A separate reader may be required for testing

KVM (Keyboard, Video and Mouse)

• Use many computers with a single keyboard, video display, and mouse

Microphone

• Integrated into most new laptops and multimedia devices
• Analog or Digital (USB) connection

Biometric device

Gaming input

 Digitizer