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1.What is computer hardware?
A. It is the resolution of a monitor.
B. It is the memory space of a computer system.
C. It is the physical part of a computer system.
D. It is the output of a computer operation.
2.Which of the following is not a hardware component of a computer system?
A. an output device
B. the CPU
C. the memory space
D. an input device
3.Which of the following is not correct?
A. 1Byte=1024KB
B. 1GB=1024MB
C. 1KB=1024Bytes
D. 1TB=1024GB
4.What is the main function of the CPU?
A. to display the input data
B. to control the on and off of a computer system
C. to control the operations of different parts of a computer system
D. to save the input text and graphics
5.The __________ is the fundamental rate at which a computer performs its most basic operations.
A. clock rate
B. boot-up rate
C. refresh rate
D. computation rate
6.If we use `P4 2.5G' to describe a CPU, what is the meaning behind the word `2.5G'?
A. The clock rate is 2.5 GHz.
B. The computation rate is 2.5 GHz.
C. The boot up speed is 2.5 GHz.
D. The refresh rate is 2.5 GHz.
7. A CPU consists of __________. (1) a hard disk (2) an ALU (3) a CU (4) Flash memory A. (1) and (4) only B. (2) and (3) only C. (3) and (4) only D. (1) and (2) only
8.What is the main use of storage devices in a computer system? A. to control the computer operation B. to show data output C. to save computer instructions and data D. to input data
9.Basically, memory can be divided into __________. A. ROM and EPROM B. ROM and RAM C. EEPROM and RAM D. EEPROM and EAROM
10.Which of the following concerning ROM is not correct? A. ROM is rarely used in modern computers. B. ROM can be used to store boot-up data. C. Data stored on ROM is non-volatile. D. Data pieces stored on ROM generally do not need to be updated.
11.What is the main use of RAM? A. to increase the running speed of a computer B. to print out information C. to store temporary instructions and data D. to act as a CPU
12. Which of the following is not a unit of storage measurement in computers? A. sentence B. bit C. byte D. word
13. Which of the following is not a secondary storage device? A. Macromedia Flash B. a floppy disk C. a memory card D. a hard disk
15. Which of the following statement is correct? A. A CD-ROM player can only be used to read CD-Rs, but not CD-RWs. B. Memory cards must be accessed via USB connection. C. A CPU is the same as an ALU. D. Flash memory is a type of secondary storage.
16. Which of the following cannot be used together with memory cards? A. mobile phones B. video tape recorders C. digital cameras D. video game consoles
17. Which of the following is not an input device? A. a mouse B. a compact disc C. a keyboard D. a scanner
18. Which of the following is not an output device? A. a loudspeaker B. a monitor C. a printer D. a hard disk
19. In the operation of a washing machine, which of the following is an input step? A. putting the clothes and the cleaning powder inside the washing machine B. switching off the washing machine C. drying the clothes D. switching on the washing machine
20. In a computer system, output devices are used to____________. A. transmit instructions and data to the CPU B. process input data C. show the processing results D. save data
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