I/O can be performed either synchronously or asynchronously. Explore the differ-
ID: 2291745 • Letter: I
Question
I/O can be performed either synchronously or asynchronously. Explore the differ- ences by answering performance questions about the following peripherals a. Printer b. Scanner hat would be the most appropriate bus type (synchronous or U and the peripherals 6.5> W 6.7.1 [5] asynchronous) for handling communications betweer listed in the table? 6.7.2 [5] What problems would long, synchronous busses cause for con- nections between a CPU and the peripherals listed in the table? 6.7.3 [5] problem tions between a CPU and the peripherals listed in the table? hat problems would asynchronous busses cause for connec-Explanation / Answer
Answer :- 1) Printer is used with asynchronous bus. Scanner is used with synchronous bus.
Answer :- 2) Synchronous bus requires clock signal. Same clock signal is given to both sender and receiver and both have to follow a specicfic protocol for data transfer.
Answer :-3) Asynchronous bus does not use any clock signal. To coordinate the transaction, a hand shake mechanism is followeed. Also start and stop bits are used in this.