Serial Port
• Used for external modems and older computer mouse
• Two versions: 9 pin, 25 pin model
• Data travels at 115 kilobits per second
Parallel Port
• Used for scanners and printers
• Also called printer port
• 25 pin model
• IEEE 1284-compliant Centronics port
PS/2 Port
• Used for old computer keyboard and mouse
• Also called mouse port
• Most of the old computers provide two PS/2 port, each for the mouse and keyboard
• IEEE 1284-compliant Centronics port
Universal Serial Bus (or USB) Port
• It can connect all kinds of external USB devices such as external hard disk, printer, scanner, mouse, keyboard, etc.
• It was introduced in 1997.
• Most of the computers provide two USB ports as minimum.
• Data travels at 12 megabits per seconds.
• USB compliant devices can get power from a USB port.
VGA Port
• Connects monitor to a computer's video card.
• It has 15 holes.
• Similar to the serial port connector. However, serial port connector has pins, VGA port has holes.
Power Connector
• Three-pronged plug.
• Connects to the computer's power cable that plugs into a power bar or wall socket.
Firewire Port
• Transfers large amount of data at very fast speed.
• Connects camcorders and video equipment to the computer.
• Data travels at 400 to 800 megabits per seconds.
• Invented by Apple.
• It has three variants: 4-Pin FireWire 400 connector, 6-Pin FireWire 400 connector, and 9-Pin FireWire 800 connector.
Modem Port
• Connects a PC's modem to the telephone network.
Ethernet Port
• Connects to a network and high speed Internet.
• Connects the network cable to a computer.
• This port resides on an Ethernet Card.
• Data travels at 10 megabits to 1000 megabits per seconds depending upon the network bandwidth.
Game Port
• Connect a joystick to a PC
• Now replaced by USB
Digital Video Interface, DVI port
• Connects Flat panel LCD monitor to the computer's high-end video graphic cards.
• Very popular among video card manufacturers.
Sockets
• Sockets connect the microphone and speakers to the sound card of the computer
• Used for external modems and older computer mouse
• Two versions: 9 pin, 25 pin model
• Data travels at 115 kilobits per second
Parallel Port
• Used for scanners and printers
• Also called printer port
• 25 pin model
• IEEE 1284-compliant Centronics port
PS/2 Port
• Used for old computer keyboard and mouse
• Also called mouse port
• Most of the old computers provide two PS/2 port, each for the mouse and keyboard
• IEEE 1284-compliant Centronics port
Universal Serial Bus (or USB) Port
• It can connect all kinds of external USB devices such as external hard disk, printer, scanner, mouse, keyboard, etc.
• It was introduced in 1997.
• Most of the computers provide two USB ports as minimum.
• Data travels at 12 megabits per seconds.
• USB compliant devices can get power from a USB port.
VGA Port
• Connects monitor to a computer's video card.
• It has 15 holes.
• Similar to the serial port connector. However, serial port connector has pins, VGA port has holes.
Power Connector
• Three-pronged plug.
• Connects to the computer's power cable that plugs into a power bar or wall socket.
Firewire Port
• Transfers large amount of data at very fast speed.
• Connects camcorders and video equipment to the computer.
• Data travels at 400 to 800 megabits per seconds.
• Invented by Apple.
• It has three variants: 4-Pin FireWire 400 connector, 6-Pin FireWire 400 connector, and 9-Pin FireWire 800 connector.
Modem Port
• Connects a PC's modem to the telephone network.
Ethernet Port
• Connects to a network and high speed Internet.
• Connects the network cable to a computer.
• This port resides on an Ethernet Card.
• Data travels at 10 megabits to 1000 megabits per seconds depending upon the network bandwidth.
Game Port
• Connect a joystick to a PC
• Now replaced by USB
Digital Video Interface, DVI port
• Connects Flat panel LCD monitor to the computer's high-end video graphic cards.
• Very popular among video card manufacturers.
Sockets
• Sockets connect the microphone and speakers to the sound card of the computer
LSN Computer
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