Digital Electronics - Memory and Storage

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"Do not wait for leaders; do it alone, person to person."

- Mother Teresa

22.

The device shown in the given figure is checked with a logic probe and the output is HIGH.

A.	The device is working properly.
B.	For the input conditions shown the output should be LOW; the input is shorted to ground.
C.	For the input conditions shown the output should be neither HIGH nor LOW; the device is shorted to .
D.	The device is probably alright; the problem is most likely caused by the stage connected to the output of the device.

23.

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

24.

Which is not a removable drive?

A.	Zip	B.	Jaz
C.	Hard	D.	SuperDisk

25.

Which of the following best describes EPROMs?

A.	EPROMs can be programmed ony 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.

26.

How many storage locations are available when a memory device has 12 address lines?

A.	144	B.	512
C.	2048	D.	4096

27.

FIFO is formed by an arrangement of ________.

28.

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