Computer System Architecture

621. ____________ is data paths there is movement of data from one register to another or b/w ALU and a register:

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

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622. Which is the input of control unit:

1. Master clock signal
2. Instruction register
3. Flags
4. Control signals from bus
5. All of these

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623. If ____________ flag is set then control unit issues control signals that causes program counter to be incremented by 1:

1. Zero
2. One
3. Three
4. Eight

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624. Which control unit is implemented as combinational circuit in the hardware:

1. Microprogrammed control unit
2. Hardwired control unit
3. Blockprogrammed control unit
4. Macroprogrammed control unit

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625. Microprograms are usually stored in:

1. ROM
2. RAM
3. SAM
4. SAN

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626. Among them which is the faster control unit:

1. Hardwired
2. Microprogrammed
3. Both a & b
4. None of these

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627. For CISC architecture ____________ controllers are better:

1. Microprogrammed
2. Hardwired
3. Betterwired
4. None of these

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628. Full form of FSM is:

1. Finite state machine
2. Fix state machine
3. Fun source metal
4. All of these

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629. Rules of FSM are encoded in:

1. ROM
2. Random logic
3. Programmable logic array
4. All of these

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630. In RISC architecture access to registers is made as a block and register file in a particular register can be selected by using:

1. Multiplexer
2. Decoder
3. Subtractor
4. Adder

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