An U.S.B cable.
The Ethernet port is used to connect a computer to a connectivity device such as a modem, router, switch,etc. Does so via an ethernet cable.
Parallel Port-Most common uses are to connect older printers to the computer
Many of the oldest types of joysticks connect via a serial port. The next generation of joysticks used a port called the game port. Most of the newer joysticks available today connect via a USB port.
A memory stick connect into the USB port on an computer. The USB port is generally located on the side, back or front of the computer. There are also memory sticks used by camera's, and these normally slot into an different port located in the front of an computer.
In computer science, a port is a number - commonly used in the TCP and UDP protocols - used to distinguish different applications on a computer. Ports are also used to distinguish different data flows on one computer. For example, if I connect to a Web server, the destination port will be port #80 - that way, the destination computer knows that the data should go to the Web server, and not to some other application. And the origin port might be, for example, port #1024 for one file I get from the server, and port #1025 for another file I get from the same server.In computer science, a port is a number - commonly used in the TCP and UDP protocols - used to distinguish different applications on a computer. Ports are also used to distinguish different data flows on one computer. For example, if I connect to a Web server, the destination port will be port #80 - that way, the destination computer knows that the data should go to the Web server, and not to some other application. And the origin port might be, for example, port #1024 for one file I get from the server, and port #1025 for another file I get from the same server.In computer science, a port is a number - commonly used in the TCP and UDP protocols - used to distinguish different applications on a computer. Ports are also used to distinguish different data flows on one computer. For example, if I connect to a Web server, the destination port will be port #80 - that way, the destination computer knows that the data should go to the Web server, and not to some other application. And the origin port might be, for example, port #1024 for one file I get from the server, and port #1025 for another file I get from the same server.In computer science, a port is a number - commonly used in the TCP and UDP protocols - used to distinguish different applications on a computer. Ports are also used to distinguish different data flows on one computer. For example, if I connect to a Web server, the destination port will be port #80 - that way, the destination computer knows that the data should go to the Web server, and not to some other application. And the origin port might be, for example, port #1024 for one file I get from the server, and port #1025 for another file I get from the same server.
A parallel port can be used to connect a large number of devices. The most common usage was for printers, although scanners, external disk drives, and network adapters also used this port. With a special cable, two computers could also be connected directly for sharing files.
The port is an external connection device on the computer which is used to connect different peripherals. Concretely it is a socket (and the corresponding plug) that enables an external device (peripheral) to be attached to a computer (usually to a motherboard or adapter card).
CAT5
Serial, Parallel and USB 1.1 to mention a few.
What you can do is that you can just type whatever you want to type in then you can connect your desktop's printer wire into your laptop (if you have one!)
Rollover cable (also known as Cisco console cableor a Yost cable) is a type of null-modem cable that is often used to connect a computer terminal to a router's console port
Serial port is by far the fastest port. It is so fast that it is used in modern computer to connect hard drive to motherboard. Current generation of serial port is SATA 6Gpbs.