Memory and Storage - General Questions (6)

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Memory and Storage - General Questions

41.

What are the typical values of t_OE?

A.	10 to 20 ns for bipolar
B.	25 to 100 ns for NMOS
C.	12 to 50 ns for CMOS
D.	All of the above

Answer: Option D

Explanation:

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42.

Microprocessors and memory ICs are generally designed to drive only a single TTL load. Therefore, if several inputs are being driven from the same bus, any memory IC must be ________.

A.	buffered
B.	decoded
C.	addressed
D.	stored

Answer: Option A

Explanation:

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43.

What is the difference between static RAM and dynamic RAM?

A.	Static RAM must be refreshed, dynamic RAM does not.
B.	There is no difference.
C.	Dynamic RAM must be refreshed, static RAM does not.

Answer: Option C

Explanation:

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44.

Which of the following is normally used to initialize a computer system's hardware?

A.	Bootstrap memory
B.	Volatile memory
C.	External mass memory
D.	Static memory

Answer: Option A

Explanation:

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45.

The periodic recharging of DRAM memory cells is called ________.

A.	multiplexing
B.	bootstrapping
C.	refreshing
D.	flashing

Answer: Option C

Explanation:

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46.

A major disadvantage of the mask ROM is that it:

A.	is time consuming to change the stored data when system requirements change
B.	is very expensive to change the stored data when system requirements change
C.	cannot be reprogrammed if stored data needs to be changed
D.	has an extremely short life expectancy and requires frequent replacement

Answer: Option C

Explanation:

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47.

What is the computer main memory?

A.	Hard drive and RAM
B.	CD-ROM and hard drive
C.	RAM and ROM
D.	CMOS and hard drive

Answer: Option C

Explanation:

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48.

Which type of ROM has to be custom built by the factory?

A.	ROM
B.	mask ROM
C.	EPROM
D.	EEPROM

Answer: Option B

Explanation:

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