compare and contrast the following Technologies USB and Serial port
Answers
A Serial port is an asynchronous port on the computer used to connect devices serially to the computer. It is a serial communication interface through which port is capable of transmitting one bit at a time. The serial port is found at the back of the computer and it is a part of motherboard. Serial port is used for connecting various hardwares like mouse, modem, network, printer, etc,. Since, serial port can transmit only a bit at a time, it takes a lot of time to complete its task. So, to overcome its limitations USB is introduced which is faster and therefore serial ports are now rarely used as compared to how often they have been used in the past.
USB is an abbreviated form of Universal Serial Bus. A USB is a standard cable connection interface between personal computers and electronic devices of consumer. USB allows the USB devices to be connected to each other and transfer digital data over the cable. It can also supply electric power to the device that needs it like your mobile phone. USB is very user- friendly. There is no need to turn off the computer for installing the device. USB has the rate of data transfer 12 Mbps for disk-drives and 1.5Mbps for devices that need less bandwidth. Many computers have additional USB ports located on the front along with two standard USB ports at the back.