Description : The instruction fetch operation is initiated by loading the contents of program counter into the and sends _ request to memory: a. Memory register and read b. Memory register and write c. Data register and read d. Address register and read
Last Answer : d. Address register and read
Description : Which operation puts memory address in memory address register and data in DR. a Memory read b. Memory write c Both d. None
Last Answer : b. Memory write
Description : Various machine level components are: a. Address register > Program counter c Data register d. Accumulator register e. Memory of 2K,16 bits/word RAM f. Multiplexers g. Allof these
Last Answer : g. Allof these
Description : Which control refers to the track of the address of instructions. a. Data control b. Register control c. Program control d. None of these
Last Answer : c. Program control
Description : In register transfer which system is a sequential logic system in which flip-flops and gates are constructed: a. Digital system b. Register Cc. Data d. None
Last Answer : a. Digital system
Description : The instruction read from memory is then placed in the ___and contents of program counter is __ so that it contains the address of_ __ instruction in the program. a. Program counter, ... incremented and previous c. Instruction register, incremented and next d. Address register, decremented and next
Last Answer : c. Instruction register, incremented and next
Description : The register that includes the address of the memory unit is termed asthe _ a. MAR b PC Cc. IR d. None of these
Last Answer : a. MAR
Description : In memory read the operation puts memory address on to a register known as : a. PC b. ALU ce. MAR d. — Allof these
Last Answer : ce. MAR
Description : ___uses the stack to store return address of subroutine: a. CPU b. Microprocessor c. register d. memory
Last Answer : b. Microprocessor
Description : In stack organization address register is known as the: a. Memory stack b. Stack pointer c. Push operation d. Pop operation
Last Answer : b. Stack pointer
Description : In post-indexing the contents of the address field are used to access a memory location containing a___ address: Immediate addressing Direct addressing Register addressing ao | None of these
Last Answer : Direct addressing
Description : Mode of addresses in control memory are: a. Executive mode b. Task mode c. Botha&b d. None of these
Last Answer : c. Botha&b
Description : The stack pointer is maintained in a : a. Data b. Register c. Address d. None of these
Last Answer : b. Register
Description : five bits of OPR select one of the operation inthe __ in control register. a. CPU b. RISC ec ALU d. MUX
Last Answer : ec ALU
Description : What type of circuit is used by control memory to interconnect registers. a. Data routing circuit b. Address routing circuit c. Control routing circuit d. None of the these
Last Answer : a. Data routing circuit
Description : Copy of data in cache memory is called. a. Datacache b. Execution cache c. Address cache d. Control cache
Last Answer : a. Datacache
Description : In cache memory hit rate indicates. a. Data from requested address is not available b. Data from requested address is available c. Control from requested address is available d. Address from requested address is not available
Last Answer : b. Data from requested address is available
Description : Acontrol memory is__ stored in some area of memory: a. Control instraction b. Memory instruction c. Register instruction d. None of these
Last Answer : a. Control instraction
Description : There are how many register groups in control memory: a 3 b 5 c. 6 d 8
Last Answer : b 5
Description : In register stack a stack can be a finite number of a Control word b. Memory word c Transfer word d. — Allof these
Last Answer : b. Memory word
Description : Before checking the program for errors in translating code into machine language the high level language code is loaded into __ a. Register b. Memory c. Data d. CPU
Last Answer : b. Memory
Description : Which types of register holds a single vector containing at least two read ports and one write ports: a. Data system b. Data base Cc. Memory d. Vector register
Last Answer : d. Vector register
Description : Parallel computing means doing several takes simultaneously thus improving the performance of the a. Data system b. Computer system Cc. Memory d. Vector register
Last Answer : b. Computer system
Description : Which microprocessor has the control unit, memory unit and arithmetic and logic unit: a. Pentium IV processor b Pentium V processor c. Pentium III processor d. None of these
Last Answer : a. Pentium IV processor
Description : shave addresses where instructions are stored along with address of working storage: a. _ Relative entities b. Absolute entities c. Botha &b d. None of these
Last Answer : a. _ Relative entities
Description : For each micro operation the control unit generates set of_ signals. a. Control b. Address c. Data d. None of these
Last Answer : a. Control
Description : Opcode is the machine instruction obtained from decoding instruction stored in. a. Stack pointer b. Address pointer Cc. Instruction register d. Incrementer
Last Answer : Cc. Instruction register
Description : How many modes the address in control memory are divided. a 2 b 3 c. 5 d 7
Last Answer : a 2
Description : In cache memory miss rate indicates. a. Availability of requested data b. Availability of requested address c. Non-Availability of requested data d. Non-Availability of requested address
Last Answer : c. Non-Availability of requested data
Description : Instruction formats contains the memory address of the a. Memory data b. Main memory Cc. CPU d. ALU
Last Answer : b. Main memory
Description : Branch logic determines which should be adopted to select the next_ value among possibilities. a. CAR b. GAR c. HAR d. TAR
Last Answer : a. CAR
Description : The source/destination of operands can be the_ or one of the general-purpose register: a. Memory b. One c. both d. None of these
Last Answer : a. Memory
Description : In which transfer the computer register are indicated in capital letters for depicting its function. a. Memory transfer b. Register transfer c. Bus transfer d. None of these
Last Answer : b. Register transfer
Description : A flag isa __ __that keep track of a changing condition during computer run: a. Memory b. Register c. Controller d. None of these
Last Answer : d. None of these
Description : The function of these microinstructions is to issue the micro orders to_ _ a. CPU b. Memory c. Register d. Accumulator
Last Answer : a. CPU
Description : In which addressing the simplest addressing mode where an operand is fetched from memory is a. Immediate addressing b. Direct addressing c. Register addressing d. None of these
Last Answer : b. Direct addressing
Description : In which mode the main memory location holds the EA of the operand: a. Immediate addressing b. Direct addressing c. Register addressing d. Indirect addressing
Last Answer : d. Indirect addressing
Description : is a symbolic representation of discrete elements of information: a. Data b. Code c. Address d. Control
Last Answer : b. Code
Description : Outputs of instruction/data path in CU are. a. Reg R/W b. Load/Reg-Reg c. ALU function select d. Load control e. Read control f. IR Latch g. JUMP/Branch/Next PC h_ = All of these
Last Answer : h_ = All of these
Description : Which register holds the current instruction to be executed. a. Instruction register b. Program register 9 Control register a None of these
Last Answer : a. Instruction register
Description : In every transfer, selection of register by bus is decided by: a. Control signal b No signal c. All signal d. Allof above
Last Answer : a. Control signal
Description : Which is the input of control unit: a. Master clock signal b. Instruction register c. Flags d. Control signals from bus e. Allof these
Last Answer : e. Allof these
Description : Which are the operation that a computer performs on data that put in register: a. Register transfer b. Arithmetic c. Logical d. Allof these
Last Answer : d. Allof these
Description : Arithmetic operation are carried by such micro operation on stored numeric data available in a. Register b. Data c. Both d. None
Last Answer : a. Register
Description : __is data paths there is movement of data from one register to another or b/w ALU and a register. a. External b. Boreal c. Internal d. Exchange
Last Answer : c. Internal
Description : is just like a circular array: a. Data b. Register c. ALU d. CPU
Description : The control unit and arithmetic logic unit are know as the __ a. Central program unit b. Central processing unit
Last Answer : b. Central processing unit
Description : Which control transfer passes the function viacontrol_ a Logic b. Operation ce. Circuit d. __ Allof these
Last Answer : ce. Circuit
Description : Control memory is part of __ that has addressable storage registers and used as temporary storage for data. a. ROM b. RAM c. CPU d. Memory
Last Answer : b. RAM
Description : Which is addressed by sign extending the 16-bit displacement to 32-bit: a. Memory address b. Effective memory address c. Both a and b d. None of these
Last Answer : b. Effective memory address