Description : The lower red curvy arrow show that CPU places the address extracted from the memory location on the_____: a. Address bus b. System bus c. Control bus d. Data bus
Last Answer : a. Address bus
Description : The CPU sends out a ____ signal to indicate that valid data is available on the data bus: a. Read b. Write c. Both A and B
Last Answer : b. Write
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 CPU removes the ___ signal to complete the memory write operation: a. Read b. Write c. Both A and B d. None of these
Last Answer : a. Read
Description : CPU can read & write data by using : a. Control bus b. Data bus c. Address bus d. None of these
Last Answer : b. Data bus
Description : The brain of any computer system is a. ALU b. Memory c. CPU d. Control unit
Last Answer : c. CPU
Description : Which of the following are the two main components of the CPU? a. Control unit and registers b. Registers and main memory c. Control Unit and ALU d. ALU and bus
Last Answer : c. Control Unit and ALU
Description : Where does a computer add and compare data? a. Hard disk b. Floppy disk c. CPU chip d. Memory chip
Last Answer : c. CPU chip
Description : Which computer memory is used for storing programs and data currently being processed by the CPU? a. Mass memory b. Internal memory c. Non-volatile memory d. PROM
Last Answer : b. Internal memory
Description : . An online backing storage system capable of storing larger quantities of data is a. CPU b. Memory c. Mass storage d. Secondary storage
Last Answer : c. Mass storage
Description : What is the control unit's function in the CPU? a. To transfer data to primary storage b. to store program instruction c. to perform logic operations d. to decode program instruction
Last Answer : b. to store program instruction
Description : The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.A.control busB.control instructionsC. address decoder D.CPU
Last Answer : C. address decoder
Description : Which bus transfer singles from the CPU to external device and others that carry singles from external device to the CPU: a. Control bus b. Data bus c. Address bus d. None of these
Last Answer : a. Control bus
Description : The 8279 normally provides a maximum of _____ seven segment display interface with CPU. a) 8 b) 16 c) 32 d) 18
Last Answer : a) 8
Description : Which process information at a much faster rate than it can retrieve it from memory: a. ALU b. Processor c. Microprocessor d. CPU
Last Answer : d. CPU
Description : Which is the components of computer: a. System Bus b. CPU c. Memory Unit d. All of these
Last Answer : d. All of these
Description : In immediate addressing the operand is placed a. in the CPU register b. after OP code in the instruction c. in memory d. in stack
Last Answer : b. after OP code in the instruction
Description : What type of memory is not directly addressable by the CPU and requires special softw3are called EMS (expanded memory specification)? a. Extended b. Expanded c. Base d. Conventional
Last Answer : b. Expanded
Description : Interface electronic circuit is used to interconnect I/O devices to a computer’s CPU or a. ALU b. Memory c. Buffer d. Register
Last Answer : b. Memory
Description : The use of spooler programs and/or …. Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progress a. Registered mails b. Memory c. CPU d. Buffer
Last Answer : d. Buffer
Description : A/n …. Device is any device that provides information, which is sent to the CPU a. Input b. Output c. CPU d. Memory
Last Answer : a. Input
Description : A directly accessible appointment calendar is feature of a … resident package a. CPU b. Memory c. Buffer d. ALU
Description : In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board? a. Motherboard b. Breadboard c. Daughter board d. Grandmother board
Last Answer : a. Motherboard
Description : Which Bus connects CPU & level 2 cache: a. Rear side bus b. Front side bus c. Memory side bus d. None of these
Last Answer : b. Front side bus
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 : In 8279, the keyboard entries are debounced and stored in an _________, that is further accessed by the CPU to read the key codes. a) 8-bit FIFO b) 8-byte FIFO c) 16 byte FIFO d) 16 bit FIFO
Last Answer : b) 8-byte FIFO
Description : The ____ place the data from a register onto the data bus: a. CPU b. ALU c. Both A and B d. None of these
Last Answer : a. CPU
Description : 8087 connection to 8086, to enable the _________ bank of memory _______pins are to be connected. a) Lower, BHE b) Upper, BHE c) Lower, INT d) Upper, INT.
Last Answer : a) Lower, BHE
Description : The act of retrieving existing data from memory is called a. Read-out b. Read from c. Read d. All of above
Last Answer : d. All of above
Description : To read a file in HDFS, a user sends an _______ request to the NameNode toget the location of file blocks. a) access b) open c) authentication d) create
Last Answer : open
Description : CD-ROM stands for a. Compactable Read Only Memory b. Compact Data Read Only Memory c. Compactable Disk Read Only Memory d. Compact Disk Read Only Memory
Last Answer : d. Compact Disk Read Only Memory
Description : When memory write or I/O read are active data is from the processor: a. Input b. Output c. Processor d. None of these
Last Answer : b. Output
Description : When memory read or I/O read are active data is to the processor : a. Input b. Output c. Processor d. None of these
Description : The microprocessor can read/write 16 bit data from or to ________ A. memory B. I /O device C. processor D. register
Last Answer : The microprocessor can read/write 16 bit data from or to memory
Description : What is the responsibility of the logical unit in the CPU of a computer? a. To produce result b. To compare numbers c. To control flow of information d. To do math’s works
Last Answer : b. To compare numbers
Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage
Last Answer : c. Control unit, arithmetic-logic unit and primary storage
Description : The CPU completes yields control of the bus to the DMA controller via: a. DMA acknowledge signal b. DMA integrated signal c. DMA implicitly signal d. None of these
Last Answer : a. DMA acknowledge signal
Description : CPU does not perform the operation a. data transfer b. logic operation c. arithmetic operation d. all of above
Last Answer : b. logic operation
Description : An error in computer data is called a. Chip b. Bug c. CPU d. Storage device
Last Answer : b. Bug
Description : The information on the data bus is transferred to the ______register: a. MOC b. MDR c. VAM d. CPU
Last Answer : b. MDR
Description : What does the disk drive of a computer do? a. Rotate the disk b. Read the disk c. Load a program from the disk into the memory d. Both b and c
Last Answer : d. Both b and c
Description : Which pin of port 3 is has an alternative function as write control signal for external data memory? a) P3.8 b) P3.3 c) P3.6 d) P3.1
Last Answer : d) P3.1
Last Answer : c) P3.6
Description : Which are the READ operation can in simple steps: a. Address b. Data c. Control d. All of these
Description : Who is the represents the fundamental process in the operation of the CPU: a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these
Last Answer : a. The fetch-execute cycle and pipelining
Description : The value memvar must be transferred to the ___: a. Computer b. CPU c. Both A and B d. None of these
Last Answer : b. CPU
Description : The information is transferred from the_____ and ____ specified register: a. MDR b. CPU c. Both A and B
Last Answer : c. Both A and B
Description : Pentium Pro can address _____ of memory: a. 4 GB b. 128 GB c. 256 GB d. 512 GB
Last Answer : a. 4 GB
Description : Because we wish to allow each ASCII code to occupy one location in memory, most memories are _____ addressable. a. BYTE b. NIBBLE c. WORD (16 bits) d. DOUBLEWORD (32 bits)
Last Answer : a. BYTE
Description : 8096 write-protected mode, no code can write to memory address between __. a) 2020 to 3FFFH b) 8000 to FFFFH c) 2000 to 3FFFH d) 2020 to 202FH 17. If the __ pin is ___ , then we have the option ... b) EA, low, internal, external c) EA, high, external, internal d) EA, low, external, internal
Last Answer : c) EA, high, external, internal