In your own words, explain why shift registers are required to interface between a computer and a serial bus. Solution The Shift Register is a type of sequential logic circuit that can be used for transfer of data in the form of binary numbers. why shift registers are required to interface between a computer and a serial bus? Serial communication is basically a process of sending one bit of data at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, with several parallel channels. Shift Registers are used for data storage or for the movement of data and are therefore commonly used inside computers to store data such as two binary numbers before they are added together, or to convert the data from either a serial to parallel or parallel to serial format or we can say that we require an interface between a computer and a serial bus so that are shiftregisters..