● （ ）is very fast storage used to hold data. It connects directly to the microprocessor.

（71）A． CPU

B. Memory

C. Disk

D. I/0 device

● （ ）is the basic software that allows the user to interface with the computer.

（72）A． Display

B. Application

C. Screen

D. Operating System

● A( )is a copy of a file for use in the event of failure or loss of the original.

（73）A． second storage

B. buffer

C. backup

D. database

● When you move the mouse pointer to a ( ), the pointer's shape usually changes to a pointing hand.

（74）A． hyperlink

B. selected text

C. selected graphic

D. web page

● Web pages are viewed with( )。

（75）A． application B. browser C. 0S D. DBMS