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- Question
Which is not a hard disk performance parameter?
Options- A. Seek time
- B. Break time
- C. Latency period
- D. Access time
- Correct Answer
- Break time
- 1. How many 8 k × 1 RAMs are required to achieve a memory with a word capacity of 8 k and a word length of eight bits?
Options- A. Eight
- B. Four
- C. Two
- D. One Discuss
- 2. What is a multitap digital delay line?
Options- A. a series of inverter gates with RC circuits between each one
- B. a series of inverter gates with RL circuits between each one
- C. a series of NAND gates with RC circuits between each one
- D. a series of NAND gates with RL circuits between each one Discuss
- 3. Dynamic memory cells store a data bit in a ________.
Options- A. diode
- B. resistor
- C. capacitor
- D. flip-flop Discuss
- 4. What is the maximum time required before a dynamic RAM must be refreshed?
Options- A. 2 ms
- B. 4 ms
- C. 8 ms
- D. 10 ms Discuss
- 5. How can UV erasable PROMs be recognized?
Options- A. There is a small window on the chip.
- B. They will have a small violet dot next to the #1 pin.
- C. Their part number always starts with a "U", such as in U12.
- D. They are not readily identifiable, since they must always be kept under a small cover. Discuss
- 6. Which is not a magnetic storage device?
Options- A. Magnetic disk
- B. Magnetic tape
- C. Magneto-optical disk
- D. Optical disk Discuss
- 7. Which is not part of a hard disk drive?
Options- A. Spindle
- B. Platter
- C. Read/write head
- D. Valve Discuss
- 8. How many address bits are required for a 4096-bit memory organized as a 512 × 8 memory?
Options- A. 2
- B. 4
- C. 8
- D. 9 Discuss
- 9. A transducer is a device that:
Options- A. converts a physical variable to an electrical variable
- B. converts analog data to meaningful data
- C. controls a physical variable
- D. stores digital data and then processes that data according to a set of specified instructions Discuss
- 10. The basic approach to testing D/A converters is to:
Options- A. apply a sequence of binary codes covering the full range of input values to the circuit input while observing the output on an oscilloscope. The output should consist of a linear stairstep ramp.
- B. single-step the device through its full input range while checking the output with a DMM.
- C. check the output with zero input and then full input. The output of the converter should extend from zero to its maximum value. If so, then everything in between can be assumed to be operating properly.
- D. apply the correct input to the analog terminal and then check to see if the proper binary code exists on the digital inputs. Discuss
Memory and Storage problems
Search Results
Correct Answer: Eight
Correct Answer: a series of inverter gates with RC circuits between each one
Correct Answer: capacitor
Correct Answer: 2 ms
Correct Answer: There is a small window on the chip.
Correct Answer: Optical disk
Correct Answer: Valve
Correct Answer: 9
Correct Answer: converts a physical variable to an electrical variable
Correct Answer: apply a sequence of binary codes covering the full range of input values to the circuit input while observing the output on an oscilloscope. The output should consist of a linear stairstep ramp.
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