Description : A structure that stores a number of bits taken "together as a unit" is a a. gate b. mux c. decoder d. register
Last Answer : d. register
Description : Which of the following pair of gates can form a latch? a. a pair of cross coupled OR b. a pair of cross copled AND c. a pair of cross coupled NAND d. a cross coupled NAND/OR
Last Answer : c. a pair of cross coupled NAND
Description : Which of the following conditions is not allowed in an RS latch? a. R is asserted, S is asserted b. R is asserted, S is negated c. R is negated, S is asserted d. R is negated, S is negated
Last Answer : a. R is asserted, S is asserted
Description : How is selects the register that receives the information from the output bus. Decoder Encoder MUX
Last Answer : Decoder
Description : If m is a power of 2, the number of select lines required for an m-input mux is: a. m b. 2^m c. log2 (m) d. 2*m
Last Answer : c. log2 (m)
Description : When the write enable input is not asserted, the gated D latch ______ its output. a. can not change b. clears c. sets d. complements
Last Answer : a. can not change
Description : Which statement is false about WR signal: a. WR signal controls the input buffer b. The bar over WR means that this is an active low signal c. The bar over WR means that this is an active high signal d. If WR is 0 then the input data reaches the latch input
Last Answer : c. The bar over WR means that this is an active high signal
Description : Which latch is mostly used creating memory register: a. SR-Latch b. JK-Latch c. D-Latch d. T-Latch
Last Answer : c. D-Latch
Description : Using DeMorgan's Theorem we can convert any AND-OR structure into a. NAND-NAND b. OR-NAND c. NAND-NOR d. NOR-NAND
Last Answer : a. NAND-NAND
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 : The advantage of memory mapped I/O over I/O mapped I/O is, a) Faster b) Many instructions supporting memory mapped I/O c) Require a bigger address decoder d) All the above
Last Answer : d) All the above
Description : Chief component of first generation computer was a. Transistors b. Vacuum Tubes and Valves c. Integrated Circuits d. None of above
Last Answer : b. Vacuum Tubes and Valves
Description : MSI stands for a. Medium Scale Integrated Circuits b. Medium System Integrated Circuits c. Medium Scale Intelligent Circuit d. Medium System Intelligent Circuit
Last Answer : b. Medium System Integrated Circuits
Description : In microcontroller and LCD interface which line will instruct the LCD that microcontroller is sending data? a) DB0 b) RW c) EN d) RS
Last Answer : d) RS
Description : Interfacing LCD with 89C51 _____ data lines are used along with the _____ signals. a) 6, RS, RW b) 5, RW, EN c) 8, RS, EN, RW d) 9, RS, EN, RW
Last Answer : a) 6, RS, RW
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 : Processors of all computers, whether micro, mini or mainframe must have a. ALU b. Primary Storage c. Control unit d. All of above
Last Answer : b. Primary Storage
Description : Offline device is a. A device which is not connected to CPU b. A device which is connected to CPU c. A direct access storage device d. An I/O device
Last Answer : a. A device which is not connected to CPU
Description : The difference between memory and storage is that memory is …. and storage is … a. Temporary, permanent b. Permanent, temporary c. Slow, fast d. All of above
Last Answer : a. Temporary, permanent
Description : A name or number used to identify a storage location is called a. A byte b. A record c. An address d. All of above
Last Answer : c. An address
Description : Which of the following is not a primary storage device? a. Magnetic tape b. Magnetic disk c. Optical disk d. None of the above
Last Answer : d. None of the above
Description : What type of device is computer keyboard? a. Memory b. Output c. Storage d. Input
Last Answer : d. Input
Description : Which of the following items are examples of storage devices? a. Floppy / hard disks b. CD-ROMs c. Tape devices d. All of the above
Last Answer : d. All of the above
Description : Which of the it5ems below are considered removable storage media? a. Removable hard disk cartridges b. (Magneto-optical) disk c. Flexible disks cartridges d. All of the above
Description : Which is an item of storage medium in the form of circular plate? a. Disk b. CPU c. Printer d. ALU
Last Answer : a. Disk
Description : One of a class of storage device devices that can access storage locations in any order is a. DTE b. DASD c. DDE d. DDE
Last Answer : b. DASD
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 : A storage device whe3re the access time is depended upon the location of the data is a. Random access b. Serial access c. Sequential access d. Transaction access
Last Answer : b. Serial access
Description : the storage capacity of a disk system depends on the bits per inch of track and the tracks per inch of a. Cylinder b. Hum c. Cluster d. Surface
Last Answer : d. Surface
Description : Actual data processing operations are performed in the arithmetic logic section, but not in the …. Storage section of a processor unit a. Primary b. Accumulator c. Buffer d. Secondary
Last Answer : a. Primary
Description : A disk storage medium in the form of an assembly containing a single rigid magnetic disk permanently is a. Fixed disk b. Disk cartridge c. Card punch d. Card reader
Last Answer : b. Disk cartridge
Description : Which of the following is an acronym for electronic delay storage automatic calculator? a. UNIVAC b. EDSAC c. EDVAC d. Abacus
Last Answer : b. EDSAC
Description : An error in computer data is called a. Chip b. Bug c. CPU d. Storage device
Last Answer : b. Bug
Description : The secondary storage devices can only store data but they cannot perform a. Arithmetic Operation b. Logic operation c. Fetch operations d. Either of the above
Last Answer : d. Either of the above
Description : Magnetic tape can serve as a. Secondary storage media b. Output media c. Input media d. All of the above
Description : Which of the following is used only for data entry and storage, and never for processing? a. Mouse b. Dumb terminal c. Micro computer d. Dedicated data entry system
Last Answer : b. Dumb terminal
Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as a. Magnetic core memory b. Magnetic tape memory c. Magnetic disk memory d. Magnetic bubble memory
Last Answer : a. Magnetic core memory
Description : The ALU of a computer normally contains a number of high speed storage element called a. Semiconductor memory b. Registers c. Hard disks d. Magnetic disk
Last Answer : b. Registers
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 storage subsystem in a microcomputer consists mainly of … or … media with varying capacities a. Memory or video b. Magnetic or optical c. Optical or memory d. Video or magnetic
Last Answer : b. Magnetic or optical
Description : To locate a data item for storage is a. Field b. Feed c. Database d. Fetch
Last Answer : d. Fetch
Description : A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is a. Memory b. Buffer c. Accumulator d. Address
Last Answer : b. Buffer
Description : What is the latest write-once optical storage media? a. Digital paper b. Magneto-optical disk c. WORM disk d. CD-ROM disk
Last Answer : d. CD-ROM disk
Description : Which of the following is used as a primary storage device? a. Magnetic drum b. Prom c. Floppy d. All of above
Last Answer : b. Prom
Description : A modern electronic computer is a machine that is meant for a. Doing quick mathematical calculations b. Input, storage, manipulation and outputting of data c. Electronic data processing d. Performing repetitive tasks accurately
Last Answer : b. Input, storage, manipulation and outputting of data
Description : The process of starting a or restarting a computer system by loading instructions from a secondary storage device into the computer memory is called a. Duping b. Booting c. Padding d. CPS
Last Answer : b. Booting
Description : The difference between memory and storage is that memory is … and storage is … a. Temporary, permanent b. Permanent, temporary c. Slow, fast d. All of above
Description : A name or number used to identify a storage location devices? a. A byte b. A record c. An address d. All of above
Description : Which of the following is not a primary storage device? a. Magnetic tape b. Magnetic disk c. Optical disk d. None of above
Last Answer : d. None of above