Memory Devices – Exercise – 4

161. The minimum number of address lines needed for a 64K memory is ________.

(a) 10
(b) 12
(c) 14
(d) 16

Answer
Answer : (d)
Explanation
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162. A type of memory that is accessed serially (one location after the other) is a ________.

(a) ROM
(b) read/write memory
(c) shift register
(d) PLD

Answer
Answer : (c)
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163. Floppy disks are organized into concentric rings called ________.

(a) tracks
(b) arrays
(c) sectors
(d) cells

Answer
Answer : (a)
Explanation
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164. A type of read/write memory available with MOS technology is ________.

(a) SRAM
(b) DRAM
(c) both of the above
(d) none of the above

Answer
Answer : (c)
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165. A CD-ROM is a form of read-only memory in which data are stored as ________.

(a) magnetic “bubbles”
(b) magnetized spots
(c) “pits” on an optical disk
(d) tiny “pinholes” in an opaque substance

Answer
Answer : (c)
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