微机硬件期末复习题..doc

Ⅰ、Multiple Choice: Identify the choice that best completes the statement or answers the question. 得分 1．All types of SCSI cables send a signal on _A___ cable. A．twisted-pair B． C． D．None of the above2．External modems use a(n) __D__ port. A．serial B．USB C． D．Either A or B3．The motherboard contains a vital __ D __ chip that contains the programming necessary to start the computer and to perform other fundamental functions. A．system B．CMOS RAM C．configuration D．ROM BIOS ．RAID 0 is not supported by __B__. A．Windows NT B． C． D．Windows 2000．A DVD disc can hold __C__ of data. A．5 GB B． C． D．10 GB The command Format C:/__C__ makes the drive bootable. A．B B． C． D．R ．_ C ___ is the most popular form factor. A．Baby AT B．Mini-ATX C．ATX D．AT ． With IDE drives, _A___ formatting is done at the factory. A．low-level B． C．D．Both A and C ．When installing a RIMM, the __C_ will help you orient it in the socket. A． B．C．D．smooth edge．he first Intel CPU to contain external cache is（ ） A．Pentium Pro B．Pentium C．Pentium D．Pentium 11．The binary number system uses __C__. A．0, 1, 2 B．1, 2 C．0, 1 D．on, off．___A___ A．B．C．D．．Which is the storage capacity of a single-sided double-layer DVD?____ A．4.7GB B．8.5GB C． 9.4GB D．17GB ．Which component stores an electrical charge?____ A．diode B．transistor C．D．capacitor ．__ B __ ROM allows you to upgrade system BIOS without having to replace the ROM chip.. A．System B．Flash C．BIOS D．Startup．Which of the following input devices only? __C__ A．modem B．C．D．SCSI controller．____defines a standard software protocol and API (application programming interface) for communication between software applications and image acquisition devices (the source of the data). A．TWAIN B． C．APM D． DPMS W