Information that is stored in a mask ROM ________. can be modified by using spec

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Question
Information that is stored in a mask ROM ________.
Options
A. can be modified by using special equipment
B. is stored by the manufacturer and cannot be changed
C. is lost if power is interrupted
D. can be modified by using special equipment and is lost if power is interrupted

Correct Answer

is stored by the manufacturer and cannot be changed

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1. The address space of a RAM memory can be expanded using a decoder and additional memory ICs. The output of the decoder should be connected to which input line of the memory?
Options
A. The most significant address inputs
B. The most significant data inputs
C. The read/write line
D. The chip enable

2. The 2147 4K � 1 static RAM contains 4096 storage locations storing one bit each. ________ 2147 RAM memory chip(s) is/are needed to configure an 8K � 8 memory.
Options
A. One
B. Four
C. Eight
D. Sixteen

3. A DIMM ________.
Options
A. is available in 30-pin or 72-pin packages
B. has contact pins on only one side of the module
C. has less memory than the newer SIMM modules
D. has contact pins on both sides of the module for larger data paths

6. ROM access time is defined as ________.
Options
A. how long it takes to program the ROM chip
B. being the difference between the READ and WRITE times
C. the time it takes to get valid output data after a valid address is applied
D. the time required to activate the address lines after the ENABLE line is at a valid level

7. Dynamic memory is memory ________.
Options
A. that will maintain storage even if power is removed
B. whose data can never be altered
C. that must be refreshed periodically or it will lose storage
D. that maintains storage as long as power is applied

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