Question 1 : _________ register keeps track of the instructions stored in program stored in memory.
1. AR (Address Register)
2. XR (Index Register)
3. PC (Program Counter)
4. AC (Accumulator)
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Question 2 : The addressing mode used in an instruction of the form ADD X Y, is _____
1. Absolute
2. Indirect
3. Index
4. None of the mentioned
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Question 3 : If memory access takes 20 ns with cache and 110 ns without it, then the ratio (cache uses a 10 ns memory) is _____
1. 93%
2. 90%
3. 88%
4. 87%
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Question 4 : In a memory-mapped I/O system, which of the following will not be there?
1. LDA
2. IN
3. ADD
4. OUT
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Question 5 : In a vectored interrupt.
1. The branch address is assigned to a fixed location in memory
2. The interrupting source supplies the branch information to the processor through an interrupt vector
3. The branch address is obtained from a register in the processor
4. None of the mentioned
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Question 6 : Von Neumann architecture is ______
1. SISD
2. SIMD
3. MIMD
4. MISD
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Question 7 : The circuit used to store one bit of data is known as ______
1. Encoder
2. OR gate
3. Flip Flop
4. Decoder
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Question 8 : Cache memory acts between_______
1. CPU and RAM
2. RAM and ROM
3. CPU and Hard Disk
4. None of the mentioned
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Question 9 : Write Through technique is used in which memory for updating the data _____
1. Virtual memory
2. Main memory
3. Auxiliary memory
4. Cache memory
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Question 10 : Generally Dynamic RAM is used as main memory in a computer system as it______
1. Consumes less power
2. Has higher speed
3. Has lower cell density
4. Needs refreshing circuitry
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