Computer System Architecture

611. ____________ used to hold return address for operations of subroutine call branch:

1. TBR
2. HDR
3. SDR
4. SBR

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612. Which of following 2 types of computer system considered by micro programmed unit:

1. Micro level computers
2. Machine level computers
3. Both a & b
4. None of these

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613. Following are the components of micro programmed control unit:

1. Subroutine register
2. Control address register
3. Memory Of 128 words with 20 bits per words
4. All of these

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614. Data transfers are done using:

1. Multiplexer switching
2. Demultiplexer switching
3. Adder switching
4. Subtractor switching

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615. PC can be loaded from ____________:

1. BR
2. CR
3. AR
4. TR

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616. Which functions are performed by CU:

1. Data exchange b/w CPU and memory or I/O modules
2. External operations
3. Internal operations inside CPU
4. Both a & c

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617. Which are internal operations inside CPU:

1. Data transfer b/w registers
2. Instructing ALU to operate data
3. Regulation of other internal operations
4. All of these

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618. How many paths taken by movement of data in CU:

1. 3
2. 4
3. 5
4. 2

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619. 2 data paths in CU are:

1. Internal data paths
2. External data paths
3. Both a & b
4. None of these

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620. ____________ is the data paths link CPU registers with memory or I/O modules:

1. External data paths
2. Internal data paths
3. Boreal data paths
4. Exchange data paths

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