Discussion
Home ‣ Digital Electronics ‣ Memory and Storage Comments
- Question
All rows in a 2118 dynamic RAM need to be refreshed ________.
Options- A. every second
- B. every millisecond
- C. every 50 milliseconds
- D. every 2 milliseconds
- Correct Answer
- every 2 milliseconds
- 1. 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
- 2. 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
- 3. 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
- 4. 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
- 5. The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.
Options- A. 4
- B. 8
- C. 12
- D. 16 Discuss
- 6. When a computer is executing a program of instructions, the CPU will ________ memory locations as dictated by the program instructions.
Options- A. format
- B. scan
- C. store data into
- D. verify Discuss
- 7. Read-only memory is memory ________.
Options- A. that has unlimited storage capacity
- B. whose data can never be altered by the user
- C. that must be refreshed periodically or it will lose storage
- D. that maintains storage as long as power is applied Discuss
- 8. Floppy disks are organized into concentric rings called ________.
Options- A. tracks
- B. arrays
- C. sectors
- D. cells Discuss
- 9. Information that is stored in an EEPROM ________.
Options- A. can be modified by performing a memory write operation
- B. is stored by the manufacturer and cannot be changed
- C. is lost if power is interrupted
- D. can be erased by applying high voltage to each storage location Discuss
- 10. The basic purpose of tristate or open-collector outputs on a memory is to ________.
Options- A. isolate devices connected to a common bus
- B. simplify the circuitry
- C. provide faster transitions of the output
- D. increase the output current Discuss
Memory and Storage problems
Search Results
Correct Answer: "pits" on an optical disk
Correct Answer: definitely bad
Correct Answer: erase and write
Correct Answer: HIGH, read
Correct Answer: 16
Correct Answer: store data into
Correct Answer: whose data can never be altered by the user
Correct Answer: tracks
Correct Answer: can be erased by applying high voltage to each storage location
Correct Answer: isolate devices connected to a common bus
Comments
There are no comments.More in Digital Electronics:
Programming
Copyright ©CuriousTab. All rights reserved.