Input Output Ports

Ports: The connection point acts as an interface between the computer and external devices like printers, modems, 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 external devices like a 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 (or USB) Port :

• It can connect all kinds of external USB devices such as external hard disks, printers, scanners, mouse, keyboards, etc.
• Data travels at 12 megabits per second.

4. Firewire Port :

• Transfers large amounts of data at a very fast speed.
• Connects camcorders and video equipment to the computer.
• Data travels at 400 to 800 megabits per second.

5. Ethernet Port :

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