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 : 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 : Addresses in control memory is made by for each register group: a. Address select logic b. Data select logic c. Control select logic d. All of these
Last Answer : a. Address select logic
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 : 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 : The stack pointer is maintained in a : a. Data b. Register c. Address d. None of these
Last Answer : b. Register
Description : program converts machine instructions into control signals. a. Control memory program b. Control store program c Botha&b d. Only memory
Last Answer : c Botha&b
Description : Which is the common program control instructions are. a Branch b. Jump c Call a subroutine d. Return e. Allof these f None of these
Last Answer : e. Allof these
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 : 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 : 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 : Mnemonic refers to. a Instructions b. Code c. Symbolic codes d Assembler
Last Answer : c. Symbolic codes
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 : 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 : 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 : 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 : In_ instructions are followed one after the other in the preset order in which they appear within program: a. Sequence b Selection c. Break d. Iteration
Last Answer : a. Sequence
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? A) Memory address register B) Memory data register C) Instruction register D) Program counter
Last Answer : Answer : D
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? a. Memory address register b. Memory data register c. Instruction register d. Program counter
Last Answer : Program counter
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? a. Memory Address Register b. Memory Data Register c. Instruction Register d. Program Register
Last Answer : d. Program Register
Last Answer : d. Program counter
Description : Who change the address in the program counter and cause the flow of control to be altered: a Shift manipulation b. Circular manipulation c. Program control instruction d. __ Allof these
Last Answer : c. Program control instruction
Description : The contents of the program counter isthe __——__—oof the instruction to be run. a. Data b. Address c. Counter d. None of these
Last Answer : b. Address
Description : Which is the method by which instructions are selected for execution: a. Instruction selection b. — Selection control c. Instraction sequencing d. All of these
Last Answer : c. Instraction sequencing
Description : Decoding of an instruction in RISC architecture means decision on working of control unit for: a. Remainder of instructions b. _ Divisor of instructions c. Dividend of instructions d. None of these
Last Answer : a. Remainder
Description : Which memory is used to copy instructions or data currently used by CPU: a. Main memory b. Secondary memory c. Cache memory d. None of these
Last Answer : c. Cache memory
Description : Which is data manipulation types are. a. Arithmetic instruction b. Shift instruction c. Logical and bit manipulation instructions d. All of these
Last Answer : d. All of these
Description : Which register keeps tracks of the instructions in the program stored in memory? A. Address Register B. Index Register C. Program Counter D. None of the Above
Last Answer : C. Program Counter
Description : is a symbolic representation of discrete elements of information: a. Data b. Code c. Address d. Control
Last Answer : b. Code
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 : 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 : 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 : 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 : Which is the input of control unit: a. Master clock signal b. Instruction register c. Flags d. Control signals from bus e. Allof these
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 : 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 : 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 : 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 : __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 : 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