Ports

It the connection point acts as interface between the computer and the external devices like: printer, modem, etc.

There are two types of ports :

1. Internal Port –

It connects the system’s motherboard to internal devices like hard-disk, CD drive, internal Bluetooth etc.

2. External Port –

It connects the system’s motherboard to internal devices like mouse, printer, USB etc.

Some important types of ports are as per follows :

1. Serial Port :  

• Used for external modems and older computer mouse
• Two versions-9pin,25pin
• Data travels at 115 kilobits per second

2. Parallel Port :          

• Used for scanners and printers
• 25 pin model

3. Universal Serial Bus (USB) Port :

• It can connect all kinds of external USB devices such as external hard disk, printer, scanner, mouse, keyboard, etc.
• Data travels at 12 megabits per seconds.

4. 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.

5. Ethernet Port :

• Connects to a network and high speed Internet.
• Data travels at 10 megabits to 1000 megabits per seconds depending upon the network bandwidth.