Nt1210 All Chapter Review Questions

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Chapter 1 1. Which of the following is true about 1 bit? a. Can represent decimal values 0 through 9 b. Can be used to represent one character in the lowercase English alphabet c. Represents one binary digit d. Represents four binary digits Answer: C. The word bit means binary digit and represents a single binary number. As such, it can represent two states of information. To represent one number out of 10 decimal digits, or one character out of 26 in the English alphabet, multiple bits would be needed. 2. Which of the following terms means approximately 106 bytes? a. Terabyte b. Megabyte c. Gigabyte d. Kilobyte Answer: B. Kilobyte means 210 bytes, which is approximately 103. Megabyte means 220 bytes, which is approximately 106. Gigabyte means 230 bytes, which is approximately 109. Terabyte means 240 bytes, which is approxi- mately 1012. 3. Which answer lists the correct number of bits associated with each term? a. 8 bits per double word b. 32 bits per word c. 64 bits per quadruple word d. 4 bits per byte Answer: C. A nibble, 4 bits; a byte, 8 bits; a word, 16 bits; a double word, 32 bits; and a quad word, 64 bits. 4. Which of the following answers are true about random-access memory (RAM) as it is normally used inside a personal computer? (Choose two answers.) a. Used for short-term memory b. Used for long-term memory c. Used to process data d. Connects to the CPU over a bus using a cable e. Is installed onto the motherboard Answer: A, E. RAM sits on the motherboard and communicates with the CPU through circuitry on the motherboard. The CPU uses RAM for short- term memory. The CPU actually processes the data. 5. This chapter describes the concepts behind how a CPU reads the contents from RAM. Which of the following is true about the process of read data, as described in the chapter? a. The CPU tells the RAM which address holds the data

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