There are many number of external devices which are connected to computer. All the external devices are connected via cables and ports. Port is a slot into which a cable is plugged. A portable computer is attached to several external devices which includes monitor, microphones and speakers, mouse and keyboard. The general ports which are available on the back side of the CPU are :
- Ps/2 port - Keyboard
- Ps/2 port - Mouse
- USB ports
- Ethernet port - Network
- Serial port - Dial-up Modem
- LPT1 Printer port - Printer
- VGA port - Monitor
- Speakers
- Line In
- Micro Phone
- Game port - Joystick
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