How many 1K � 4 RAM chips would be required to build a 1K � 8 memory system? 2 4

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Question
How many 1K � 4 RAM chips would be required to build a 1K � 8 memory system?
Options
A. 2
B. 4
C. 8
D. 16

Correct Answer

2

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4. A 64-Mbyte SIMM is installed into a system, but when a memory test is executed, the SIMM is detected as a 32-Mbyte device. What is a possible cause?
Options
A. The memory module was not installed properly.
B. The voltage on the memory module is incorrect.
C. The most significant address line is stuck high or low.
D. The address decoder on the SIMM is faulty.

6. For the given circuit, which of the following is correct?
Options
A. The number 5 is being written to the memory at address location 203.
B. The chip has not been enabled, since the EN terminal is 0; therefore, nothing will be written to the chip and the output is tri-stated.
C. Decimal 10 is being written into memory location 211.
D. The read/write line is LOW; therefore, decimal 5 is being stored at memory location 211.

10. What two functions does a DRAM controller perform?
Options
A. address multiplexing and data selection
B. address multiplexing and the refresh operation
C. data selection and the refresh operation
D. data selection and CPU accessing

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