COMPUTER AWARENESS - MEMORY MCQS SET 65

COMPUTER AWARENESS - MEMORY MCQS SET 65

1. A CD-R disk is created by applying heat to special chemicals on the disk and these chemicals reflect less light than the areas that are not burned, thus creating the same effect as a pit does on a regular CD.
A.True            B.False
Answer: Option A

2. Which of the following is one of the basic characteristics of DRAMs?
A.DRAMs must have a constantly changing input.
B.DRAMs must be periodically refreshed in order to be able to retain data.
C.DRAMs have a broader "dynamic" storage range than other types of memories.
D.DRAMs are simpler devices than other types of memories.
Answer: Option B

3. Which of the following best describes static memory devices?
A.memory devices that are magnetic in nature and do not require constant refreshing
B.memory devices that are magnetic in nature and require constant refreshing
C.semiconductor memory devices in which stored data will not be retained with the power applied unless constantly refreshed
D.semiconductor memory devices in which stored data is retained as long as power is applied
Answer: Option D

4. Which is not a removable drive?
A.Zip            B.Jaz            C.Hard            D.SuperDisk
Answer: Option C

5. Which of the following best describes EPROMs?
A.EPROMs can be programmed only once.                

B.EPROMs can be erased by UV.
C.EPROMs can be erased by shorting all inputs to the ground.        

D.All of the above.
Answer: Option B

6. How many storage locations are available when a memory device has 12 address lines?
A.144        B.512        C.2048        D.4096
Answer: Option D
7. FIFO is formed by an arrangement of ________.
A.diodes        B.transistors        C.MOS cells        D.shift registers
Answer: Option D
8. Why do most dynamic RAMs use a multiplexed address bus?
A.It is the only way to do it.
B.to make it faster
C.to keep the number of pins on the chip to a minimum
Answer: Option C
9. CCD stands for ________.
A.capacitor charging device    

B.capacitor-capacitor drain        

C.charged-capacitor device
D.charge-coupled device
Answer: Option D

10. What is the major difference between SRAM and DRAM?
A.DRAMs must be periodically refreshed.
B.SRAMs can hold data via a static charge, even with power off.
C.The only difference is the terminal from which the data is removed—from the FET Drain or Source.
D.Dynamic RAMs are always active; static RAMs must reset between data read/write cycles.
Answer: Option A