![]() ![]() How many pins are present in a serial port? Moreover, it generally denotes RA-232 or other related standards like RS-422, RS-485, etc. A serial port carries out a serial communication interface and can transfer only one bit at a time. The ports are of different types as follows:Ī3. What are the different types of ports?Ī2. Besides, it can be of many types like serial port, parallel port, USB Port, etc. A port is basically an interface between the computer and the output devices like printer, speakers, mouse, etc. Devices using parallel ports are mainly printers, hard drives, zip-drives, CD-ROM drives, etc.Ī1.Devices using serial ports are mainly modems, connecting devices, controllers, security cameras, etc.It can transmit multiple streams of data which means multiple bits transmission.It transmits a single stream of data which means bit by bit transmission.The number of wires is more as compared to the serial port.The transmission speed is higher than the serial port.The transmission speed is lesser than the parallel port.Difference Between Serial Port and Parallel Port Serial Port ![]() Furthermore, they contain 25 pins, and the speed of data travel is 150-kilo bits per second. Besides they also connect devices like printers and scanners. Moreover, it can transfer multiple bits at a time. In contrast to the serial port, parallel ports perform a parallel communication interface. LCD and plasma use it to control screen functions by external computers.Updating firmware on various consumer devices.Present in test and measuring equipment.For managing and configuring networking equipment such as routers, switches, etc.Various applications and devices which use the port are as follows: The pins along with their functions and signal codes are as follows: PIN Besides, each pin uses different signals for its purpose. Furthermore, all these pins have different purposes. Data through this port travels at the speed of 115 kilo-bits per second.īrowse more Topics under Input Output Ports/ ConnectionsĪs we know that usually there are 9 pins on a serial port.These ports have two available versions namely, the 9-pin and 25-pin model.Usually, external modems use these ports.The characteristics of a serial port are as follows: It is one of the oldest types of interfaces. Furthermore, we can identify this port from a D shape with usually 9 pins. Besides, these ports are usually present on the back of the computer and are part of the motherboard. Serial PortĪ serial port carries out a serial communication interface and can transfer only one bit at a time. ![]() The ports are of different types as follows:
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