Pointout that which disk is removable one: A: hard-disk cartridge B: hard-disk packs C: floppy disk D: internal hard disk

●(72) is a device that allows a computer to transmit information over a telephone line. (72) A．Disk B．Modem C．Printer D．Display

When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（） A:  Disk size， stock availability， VHDCI B:  Disk size， distance， temperature， and compatibility C:  Disk fragmentation， MTBF， and maintenance D:  Disk configuration， throughput， transactions， queues， and latencies

如果磁盘损坏，关闭电源。 A: If the disk breaks, stop the supply. B: If the disk bursts, switch off the supply. C: If the disk shears, stop the supply.

Disk brake is comprised of a brake disk, brake pads and a brake caliper (see Fig.5-3).

一台计算机从硬盘启动时，屏幕显示 “Non system disk or disk error” ，原因是()

Ways to transmit viruses are through ( ) A: hard disk B: floppy disk C: E-mail D: Web

A hard disk with ___________ space

________ is comprised of a brake disk, brake pads and a brake caliper. A: Emergency brake B: Disk brake C: Drum brake

When a program is executed, it must be in _____. A: hard disk B: floppy disk C: main memory D: a support function