Description : It contains the stack for PC storage during subroutine calls and input/output interrupt services: a. Seven- level hardware b. Eight- level hardware
Last Answer : b. Eight- level hardware
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 : is an external hardware event which causes the CPU to interrupt the current instruction sequence: a. Input interrupt b. Output interrupt c. Both d. None of these
Last Answer : c. Both
Description : Which are benefit of input/output interrupt: a. It is an external analogy to exceptions b. The processor initiates and perform all I/O operation c. The data is transferred into the memory through interrupt handler d. = Alllof these
Last Answer : d. = Alllof these
Description : Which are contains one or more register that may be referenced by machine instruction: a. Input b. Output c. CPU d. ALU
Last Answer : c. CPU
Description : Which are the flags of status register: a. Over flow flag b. Carry flag c. Half carry flag d. Zero flag e. Interrupt flag f. Negative flag g. All of these
Last Answer : g. All of these
Description : How is selects the register that receives the information from the output bus. Decoder Encoder MUX
Last Answer : Decoder
Description : IRET stand for. a. Interrupt enter b. Interrupt return c. Interrupt delete d. None of these
Last Answer : b. Interrupt return
Description : Which are the not causes of the interrupt: a. In any single device b. In processor poll devices c. Itis an external analogy to exception d. None of these
Last Answer : c. Itis an external analogy to exception
Description : Which are the causes of the interrupt: a. In any single device b. In processor poll devices c. In a device whose ID number is stored on the address bus d. Allof these
Last Answer : d. Allof these
Description : Which are the functioning of I/O interrupt: a. The processor organizes all the I/O operation for smooth functioning b. After completing the I/O operation the device interrupt the processor c. Both d. None of these
Last Answer : b. After completing the I/O operation the device interrupt the processor
Description : which of the following is interrupt mode. a. Task mode b. Executive mode c. Botha &b d. None of these
Last Answer : b. Executive mode
Description : Which unit is comparable to the central nervous system in the human body: a. Output unit b. Control unit c. Input unit d. All of these
Last Answer : b. Control unit
Description : The bits are shifted and the first flip-flop receives its binary information from the____ a. Serial output b. Serial input c. Both d. None
Last Answer : b. Serial input
Description : An __ -0 option is used for. a. Input file b. External file c. Output file d. None of these
Last Answer : c. Output file
Description : If we define putchar function in putchar :. char -> IO () syntax than character input as an argument andreturns a. Useful value b. Get output c. Getno output d. None of these
Last Answer : c. Getno output
Description : The front panel display provides lights as green LED represent sand red LED represent _ for device programmer who writes input/output basic: a. Busy and Error b. Error and Busy c. Busy and Busy d. Error and Error
Last Answer : a. Busy and Error
Description : The processed data is sent for output to standard __ device which by default is computer screen: a. Input b. Output c. Botha &b d. None of these
Last Answer : b. Output
Description : Memory —mapped ___is used this is just another memory address. a. Input b. Output c. Both d. None
Description : To overcome the lag in the operating speeds of the I/O device and the processor we use ___________ a) BUffer spaces b) Status flags c) Interrupt signals d) Exceptions
Last Answer : Status flags
Description : A CPU handles interrupt by executing interrupt service subroutine................. (A) by checking interrupt register after execution of each instruction (B) by checking interrupt register ... cycle (C) whenever an interrupt is registered (D) by checking interrupt register at regular time interval
Last Answer : (A) by checking interrupt register after execution of each instruction
Description : The Register that stores all interrupt requests is: (A) Interrupt mask register (B) Interrupt service register (C) Interrupt request register (D) Status register
Last Answer : (C) Interrupt request register
Description : ___in all digital systems actually performs addition that can handle only two number at a time: a Register b. circuit c digital d. — Allof these
Last Answer : b. circuit
Description : Which part is not physically indicated in the register. a. Binary b. Decimal c. Octal d. None of these
Last Answer : b. Decimal
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 : 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 : 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 register holds the next instruction to be executed:
Last Answer : c. Program control register
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 : Which language is termed as the symbolic depiction used for indicating the series: a. Random transfer language b. Register transfer language c. Arithmetic transfer language d. __ Allof these
Last Answer : b. Register transfer language
Description : The method of writing symbol to indicate a provided computational process is called as a: a. Programming language b. Random transfer language c. Register transfer language d. Arithmetic transfer language
Last Answer : a. Programming language
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 : 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 register transfer the processor register as. a MAR b PC c IR d RI
Last Answer : d RI
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
Description : Which micro operations carry information from one register to another. a. Register transfer b. Arithmetic c. Logical d. — Allof these
Last Answer : a. Register transfer
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 : 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 : 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 arithmetic operation numbers of register and the circuits for addition at a. ALU b. MAR c. Both d. None
Last Answer : a. ALU
Description : Which operation are implemented using a binary counter or combinational circuit: a Register transfer b. Arithmetic c. Logical d. __ Allof these
Last Answer : b. Arithmetic
Description : Which operation are binary type, and are performed on bits string that is placed in register: a. Logical micro operation b. Arithmetic micro operation c. Both d. None
Last Answer : a. Logical micro operation
Description : A micro operation every bit of a register is a: a. Constant b. Variable c. Both d. None
Last Answer : b. Variable
Description : Which language specifies a digital system which uses specified notation: a. Register transfer b. Arithmetic c. Logical d. — Allof these
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 : High level language C supports register transfer technique for _ application. a. Executing b. Compiling c. Both d. None
Last Answer : a. Executing
Description : Register are assumed to use positive-edge-triggered _ a. Flip-flop b. Logics Cc. Circuit d. Operation
Last Answer : a. Flip-flop
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 : every bit of register has. a 2 common line b 3 common line c. 1 common line d none of these
Last Answer : c. 1 common line
Description : Which operation refer bitwise manipulation of contents of register: a. Logical micro operation b. Arithmetic micro operation c. Shift micro operation d. None of these