Match List I with List II Choose the correct answer from the options given…
2020
Match List I with List II
Choose the correct answer from the options given below:
- A.
\(𝐴−𝐼,𝐵−𝐼𝐼,𝐶−𝐼𝐼𝐼,𝐷−𝐼𝑉\) - B.
\(𝐴−𝐼𝐼,𝐵−𝐼𝑉,𝐶−𝐼𝐼𝐼,𝐷−𝐼\) - C.
\(𝐴−𝐼𝐼,𝐵−𝐼𝑉,𝐶−𝐼,𝐷−𝐼𝐼𝐼\) - D.
\(𝐴−𝐼𝑉,𝐵−𝐼𝐼𝐼,𝐶−𝐼𝐼,𝐷−𝐼\)
Attempted by 40 students.
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Correct answer: C
Correct matching: Handshaking → requires two control signals working in opposite directions; Programmed I/O → requires the CPU to check the I/O flag and perform the transfer; Interrupt-initiated I/O → I/O interface informs the CPU that the device is ready for transfer; I/O processor → has local memory and control logic to manage a large set of I/O devices.
Handshaking: requires two control signals working in opposite directions
Programmed I/O: requires the CPU to check the I/O flag and perform the transfer (polling)
Interrupt-initiated I/O: I/O interface informs the CPU that the device is ready for transfer
I/O processor: has local memory and control logic to manage many I/O devices independently of the CPU
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