Difference between Serial ports and Parallel ports Points : difference between serial ports and parallel ports, define ports. compare and contrast: serial ports and parallel ports Ports A ports is a socket at the back of a computer used to plug-in various devices. Personal computers have various types of ports. Internally; there are several ports for connecting disk drives, display controllers and keyboards. Externally, personal computers hive ports for connecting modems, printers, scanner and other peripheral devices.
| Difference between Serial ports and Parallel ports | ||
|---|---|---|
| 1. | A direct link with micro computer’s bus that facilitates the serial transmission of data. | A direct link with microcomputer’s but facilitates the parallel transmission of data. |
| 2. | Serial ports are used for connecting cable that transmit bits one after the others. | Parallel ports are used for connecting cable that transmit serial of bits simultaneously. |
| 3. | Rate of data transfer is slow. | Rate of data transfer is fast. |
| 4. | Serial lines are used for connecting far away devices such as linking a modern to a telephone line. | Parallel lines are used for connecting devices located close by such as a printer. |
| 5. | A serial ports also called a male. connector, has 9 or 25 pins. | A parallel ports also called a female connector, it consists of 9 or 25 holes. |
| 6. | Serial port can be named as COM1, COM2 and soon. | Parallel port can be name as LPT 1, LPT2 and soon. |
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