1. A ___ can be equipped with a cellular phone.
A. general-purpose computer C. supercomputer
B. PDA D. game console
2. Such pointing device as a ___ is most commonly used to input information into a microcomputer.
A. joystick C. compact disc
B. keyboard D. mouse
3. Workstations are similar to PCs but they ___.
A. are less expensive C. have greater computational power
B. are more compact D. have flat, lightweight LCDs
4. Mainframes are used at large industrial businesses, scientific-research and university computing centers because they ___.
A. often contain several processors
C. can perform simple mathematical operations
B. handle huge databases
D. are used by multiple users simultaneously for playing games
5. Often all of the PCs at a business or university are connected to a main computer, which is called a ___.
A. workstation C. PDA
B. server D. supercomputer
6. Supercomputers are used only by government agencies and large research centers because they can ___.
A. cost billions of dollars C. be large enough to fill in two tennis courts
B. decode secret information D. perform trillions of operations per second