The I/O control level consists of device drivers and interrupt handlers to transfer information between the main memory and the disk system True ○ False Sequential access can be optimized by ○ A. free-behind technology ○ B. read-ahead technology C. all of the above ○ D. none of the above
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- A(n) __________ is a storage location implemented in the CPU.True/false: 1. One of the I/O module functions is command decoding 2. With multiple zoned recording, the amount of data that can be stored on the outer long track is the same as that can be stored on the inner short tracks, 3. Using Winchester head mechanism, the head is in a physical contact with the disk surface when it is in motion. 4. Scanning information at the same rate by rotating the disk at a fixed speed is known as the constant angular velocity. 5. The disadvantage of the software poll is that it is time consuming 6. When large volumes of data are to be moved, the most efficient technique is direct memory access (DMA). 7. In semiconductor memory, soft errors are permanent. 8. File organization on disk has no effect on I/O performance. 9. DRAMs are more densę than SRAMs 10 The areas between pits are called landsDetermines how fast I/O operations may be executed.
- In computer terminology, an interface that allows binary data to be transferred between internal storage and external devices is referred to asExplain True/False. Statement - The data transfer between memory and I/O devices using programmed I/O is faster than interrupt driven I/O.Memory address register (MAR) specifies the address of the word to be written from or read into the memory buffer register (MBR)? O a. false b. True
- Looking at a line in a listing file: 0009 EB05 jmp test the second byte in the jmp test instruction is 05, which is the the number of bytes to the test location. True O FalseWhen a file’s storage becomes fragmented, what does this mean in terms of cylinders and seek operations performed by the drive?What exactly is a write buffer?
- 14. The minimum time delay required between initiation of two successive memory operations is called a. Memory cycle time b. Memory access time c. Transmission time d. Fetch TimeWhen the buffer is full, the system writes the buffer’s contents to the RAM.True or FalseWhat is the characteristic of the RAM that makes it suitable to manage processes in memory? A It is volatile B It is small in size C ts access is direct. D Its information can be overwritten.