21) A processor’s instruction set:
A)is unique to the type of processor.
B)is the same for different types of processors.
C)will run programs that were created for an incompatible processor.
D)has nothing to do with the ability of the computer to run a program.
22) The four-step process of fetch, decode, execute, and store is called a(n): A) arithmetic operation.
B)machine cycle.
C)instruction cycle.
D)logical operation.
23) Which of the following subcomponents of the CPU takes instructions from memory and decodes the instructions?
A)Arithmetic-logic unit
B)Microprocessor
C)Data bus
D)Control unit
24) Which of the following is NOT one of the steps in the machine cycle?
A)Pipeline
B)Decode
C)Execute D) Store
25) The greater the number of ________ on a microprocessor, and proximity to each other, the faster the processing speed.
A)transistors
B)disks
C)buses
D)registers
26) Which of the following operating systems was the first to use the 64-bit technology?
A)Mac OS X
B)Linux
C)MS-DOS
D)Windows XP
27) A CPU’s word size is important because it determines which ________ the CPU can use. A) application software
B)input devices
C)disk storage
D)operating system
28) The number of operations per clock tick affects: A) microprocessor performance.
B)monitor resolution.
C)disk drive capacity.
D)the bus size.
29) A technique that uses more than one processor to execute a program is called: A) parallel processing.
B)serial processing.
C)co-processing.
D)megaprocessing.
30) Which of the following input/output buses is used by today’s PCs?
A)PCI
B)CPU
C)L2
D)AGP
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