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
Last Answer : d. 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
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? A) Memory address registers B) Memory data registers C) Instruction register D) Program counter
Last Answer : Answer : C
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter
Last Answer : Instruction register
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter
Last Answer : c. Instruction registers
Last Answer : c. Instruction register
Description : The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is known as: a) Index Register b) Memory Address Register c) Program Counter d) None of The Above
Last Answer : c) Program Counter
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 load instruction is mostly used to designate a transfer from memory to a processor register known as_________ A. Accumulator B. Instruction Register C. Program counter D. Memory address Register
Last Answer : A. Accumulator
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 registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above
Last Answer : (B) Memory Address Register(MAR)
Description : The register which holds the address of the location to or from which data are to be transferred is known as_______ A. Instruction Register B. Control register C. Memory Address Register D. None of the Above
Last Answer : C. Memory Address Register
Description : Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called_______ A. relative address mode. B. index addressing mode. C. register mode. D. implied mode.
Last Answer : A. relative address mode.
Description : The contents of information are stored in A) Memory data register B) Memory address register C) Memory arithmetic registers D) Memory access register
Last Answer : Answer : A
Description : When the RET instruction at the end of subroutine is executed, a. the information where the stack is iniatialized is transferred to the stack pointer b. the memory address of the RET instruction is ... two data bytes stored in the top two locations of the stack are transferred to the stack pointer
Last Answer : c. two data bytes stored in the top two locations of the stack are transferred to the program counter
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 : 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 : Registers, which are partially visible to users and used to hold conditional, are known as A) PC B) Memory address registers C) General purpose register D) Flags
Description : When subroutine is called contents of program counter is location address of __ instruction following call instruction is stored on _ __and program execution is transferred to __ address. a. Non ... , Stack and Main program Cc. Executable, Queue and Subroutine d. Executable, Stack and Subroutine
Last Answer : d. Executable, Stack and Subroutine
Description : The register which contains the data to be written into or readout of the addressed location is called: a) Index Register b) Memory Address Register c) Memory Data Register d) None of The Above
Last Answer : c) Memory Data Register
Description : MDR(Memory Data Register) holds the --- 1) Segment number 2) Address of a memory location 3) Number of transistors 4) none of these
Last Answer : 3) Number of transistors
Description : In microprocessor the next instruction to be executed is stored in a) Program Counter b) Stack Pointer c) Memory Pointer d) Accumulator
Last Answer : Ans: Program Counter
Description : The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter
Last Answer : Answer: b Explanation: PC stands for program counter (It contains the address of the next instruction to be executed)
Description : The decoded instruction is stored in ______ (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above
Last Answer : (C) Instruction Register(IR)
Description : Registers, which are partially visible to users and used to hold conditional, are known as a. PC b. Memory address registers c. General purpose register d. Flags
Last Answer : c. General purpose register
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 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 : The advantage of ............... is that it can reference memory without paying the price of having a full memory address in the instruction. (A) Direct addressing (B) Indexed addressing (C) Register addressing (D) Register Indirect addressing
Last Answer : (D) Register Indirect addressing
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 : When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the a. stack pointer b. accumulator c. program counter d. stack
Last Answer : d. stack
Description : The subprogram finish the return instruction recovers the return address from the: a. Queue b. Stack c. Program counter d. Pointer
Last Answer : b. Stack
Description : A basic instruction that can be interpreted by computer generally has ________ A. An operand and an address B. decoder and an accumulator C. Sequence register and decoder D. None of the Above
Last Answer : A. An operand and an address
Description : Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as A) PC B) Flags C) Memory Address Registers D) General Purpose Registers
Last Answer : Answer : B
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 : A stack pointer is a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory. b. a register that decodes and executes 16-bit arithmetic expression. c. The first memory location where a subroutine address is stored. d. a register in which flag bits are stored
Last Answer : a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
Description : The 8O85 assembly language instruction that stores the contents of H and L registers into the memory locations 2050H and 2051H, respectively, is: A) SPHL 2050H B) SPHL 2051H C) SHLD 2050H D) STAX 2050H
Last Answer : The 8O85 assembly language instruction that stores the contents of H and L registers into the memory locations 2050H and 2051H, respectively, is: SHLD 2050H
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 : IR stands for: a. Intel register b. In counter register c. Index register d. Instruction register
Last Answer : d. Instruction register
Description : The contents of information are stored in _______: a) Memory Data Register b) Memory Address Register c) Memory Access Register d) Memory Arithmetic Register e) None of The Above
Last Answer : a) Memory Data Register
Description : The contents of information are stored in --- 1) Memory data register 2) Memory address register 3) Memory access register 4) Memory arithmetic register
Last Answer : 1) Memory data register
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 : Micro-orders generate the_ __ address of operand and execute instruction and prepare for fetching next instruction from the main memory: a. Physical b. Effective c. Logical d. all of above
Last Answer : b. Effective
Description : Debugger is a program that (A) allows to examine and modify the contents of registers (B) does not allow execution of a segment of program (C) allows to set breakpoints, execute a segment of program and display contents of register (D) All of the above
Last Answer : (C) allows to set breakpoints, execute a segment of program and display contents of register
Description : In 8085 name the 16 bit registers? a) Stack pointer b) Program counter c) a & b
Last Answer : c) a & b
Description : Which of the following will happen when data is entered into a memory location? A) It will add to the content of the location B) It will change the address of the memory location C) It will erase the previous content D) It will not be fruitful if there is already some data at the location