Memory and Storage problems
- 1. Because of their nonvolatility, high speed, low power requirements, and lack of moving parts, ________ have become feasible alternatives to magnetic disk storage.
Options- A. CD-ROMs
- B. flash memory modules
- C. ROMs
- D. EPROMs Discuss
Correct Answer: flash memory modules
- 2. The difference between RAM and ROM is that ________.
Options- A. RAM has a read/write signal and ROM doesn't
- B. RAM will lose data when the power is removed and ROM won't
- C. RAM has random address access and ROM uses sequential address access
- D. RAM has a read/write signal and ROM doesn't; RAM will lose data when the power is removed and ROM won't.
- E. All of the above Discuss
Correct Answer: RAM has a read/write signal and ROM doesn't; RAM will lose data when the power is removed and ROM won't.
- 3. The major advantage of dynamic RAM over static RAM is ________.
Options- A. cost
- B. speed
- C. storage density
- D. cost and storage density Discuss
Correct Answer: cost and storage density
- 4. The memory operation that presents data on the memory outputs after entering a new address is called ________.
Options- A. a read cycle
- B. a write cycle
- C. a refresh cycle
- D. a chip select Discuss
Correct Answer: a read cycle
- 5. The minimum number of address lines needed for a 64K memory is ________.
Options- A. 10
- B. 12
- C. 14
- D. 16 Discuss
Correct Answer: 16
- 6. The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.
Options- A. 4
- B. 8
- C. 12
- D. 16 Discuss
Correct Answer: 16
- 7. In DRAM operations, it is assumed that R/W is in its ________ state during a ________ operation.
Options- A. HIGH, read
- B. Hi-Z, write
- C. HIGH, write
- D. Hi-Z, read Discuss
Correct Answer: HIGH, read
- 8. Flash memories are so called because of the rapid ________ times.
Options- A. read and write
- B. format and erase
- C. erase and read
- D. erase and write Discuss
Correct Answer: erase and write
- 9. Assume a ROM to be tested is compared with a known good ROM. If the checksums differ, the ROM is ________.
Options- A. very likely to be good
- B. definitely good
- C. very likely to be bad
- D. definitely bad Discuss
Correct Answer: definitely bad
- 10. A CD-ROM is a form of read-only memory in which data are stored as ________.
Options- A. magnetic "bubbles"
- B. magnetized spots
- C. "pits" on an optical disk
- D. tiny "pinholes" in an opaque substance Discuss
Correct Answer: "pits" on an optical disk
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