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 : 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 : 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv
Last Answer : c) 4, i,ii,iii
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 : Of the following circuits, the one which involves storage is a. RS Latch b. mux c. nand d. decoder
Last Answer : a. RS Latch
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 : 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 : WE stands for: a. Write enable b. Wrote enable c. Write envy d. None of these
Last Answer : a. Write enable
Description : ______ input is available, so that another coprocessor can be connected and function in _________ with the 8087. . a) RQ/GT0, parallel b) RQ/GT1, parallel c) QS1 & QS0, parallel d) S0 & S1, parallel.
Last Answer : a) RQ/GT0, parallel
Description : .In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b) 512 c) 256 d) 65536
Last Answer : b) 512
Description : computer operators a. writes computer programs for specific problems b. operate the device which input and output data from the computer c. normally require a college degree in computer science d. all of the above
Last Answer : b. operate the device which input and output data from the computer
Description : What type of device is computer keyboard? a. Memory b. Output c. Storage d. Input
Last Answer : d. Input
Description : An input /output device at which data enters or leaves a computer system is a. Keyboard b. Terminal c. Printer d. Plotter
Last Answer : b. Terminal
Description : Magnetic tape can serve as a. Secondary storage media b. Output media c. Input media d. All of the above
Last Answer : d. All of the above
Description : A computer consists of a. A central processing unit b. A memory c. Input and output unit d. All of the above
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 : Which of the following is not an input device? a. OCR b. Optical scanners c. Voice recognition device d. COM (Computer Output to Microfilm)
Last Answer : d. COM (Computer Output to Microfilm)
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 : perforated paper used as input of output media is known as a. paper tapes b. magnetic tape c. punched papers tape d. card punch
Last Answer : a. paper tapes
Description : Regarding a VDU, Which statement is more correct? a. It is an output device b. It is an input device c. It is a peripheral device d. It is hardware item
Last Answer : c. It is a peripheral device
Description : In analog computer a. Input is first converted to digital form b. Input is never converted to digital form c. Output is displayed in digital form d. All of above
Last Answer : b. Input is never converted to digital form
Description : Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit
Last Answer : d. Arithmetic logic and control unit
Description : The microcomputer system by using the ____device interface: a. Input b. Output c. Both A and B d. None of these
Last Answer : c. Both A and B
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 : ED stands for: a. Enable MRD b. Enable MDR c. Both a and b d. None of these
Last Answer : b. Enable MDR
Description : In modes 2 and 3, if _____ bit of SCON bit is set will causes enable multiprocessor communication and is of ____ bit address. a) SM1, 9EH b) TB8 , 9CH c) SM2 , 9DH d) SM0, 9FH
Last Answer : c) SM2 , 9DH
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 : We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete a. set of {AND,OR} b. set of {EXOR, NOT} c. set of {AND,OR,NOT} d. None of the above
Last Answer : c. set of {AND,OR,NOT}
Description : Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called? a. Conductors b. Buses c. Connectors d. Connectively
Last Answer : b. Buses
Description : What is the function of watchdog timer? a) The watchdog Timer is an external timer that resets the system if the software fails to operate properly. b) The watchdog Timer is an internal timer ... internal timer that resets the system if the software fails to operate properly. d) None of them
Last Answer : b) The watchdog Timer is an internal timer that sets the system if the software fails to operate properly.
Last Answer : c) The watchdog Timer is an internal timer that resets the system if the software fails to operate properly.
Description : RIM is used to check whether, ______ a) The write operation is done or not b) The interrupt is Masked or not c) a & b
Last Answer : b) The interrupt is Masked or not
Description : What did Burke mean when he asserted that the negro was born in depression?
Last Answer : Burke meant that black people were accustomed to living in a society of hardship, low income, and poverty.
Description : Hardware includes a) all devices used to input data into a computer b) sets of instructions that a computer runs or executes c) the computer and all the devices connected to it that ... involved in processing information including the central processing unit, memory and storage e) None of these
Last Answer : c) the computer and all the devices connected to it that are used to input and output data
Description : Elasticity of demand measures the responsiveness of the quantity demanded of a goods to a (1) change in the price of the goods (2) change in the price of substitutes (3) change in the price of the complements (4) change in the price of joint products
Last Answer : (1) change in the price of the goods Explanation: Price elasticity of demand is a measure of responsiveness of the quantity of a good or service demanded to changes in its price. This measure of ... good with respect to the change in the price of some other good, a complementary or substitute good.
Last Answer : change in the price of the goods
Description : The largest change of input quantity for which there is no output of instrument is called ______ A) Dead time B) Dead input C) Dead output D) Dead zone
Last Answer : The largest change of input quantity for which there is no output of instrument is called Dead zone
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 : The minimum number of transistors required to implement a two input AND gate is a. 2 b. 4 c. 6 d. 8
Last Answer : c. 6
Description : To put the 8085 microprocessor in the wait state(i) lower the-HOLD input (ii) lower the READY input (iii) raise the HOLD input(iv) raise the READY input
Last Answer : (ii) lower the READY input
Description : A computer programmer a. Dies all the thinking for a compute b. Can enter input data quickly c. Can operate all types of computer equipment d. Can draw only flowchart
Last Answer : a. Dies all the thinking for a compute
Description : Which one of the following input device is user-programmable? a. Dumb terminal b. Smart terminal c. VDT d. Intelligent terminal
Last Answer : d. Intelligent terminal
Description : Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing? a. Mouse b. Magnetic disk c. Visual display terminal d. Card punch
Last Answer : a. Mouse
Description : Which is considered a direct entry input device? a. Optical scanner b. Mouse and digitizer c. Light pen d. All of the above
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 : A computer programmer a. Does all the thinking for a computer b. Can enter input data quickly c. Can operate all types of computer equipments d. Can draw only flowchart
Last Answer : a. Does all the thinking for a computer
Description : Which of the following statements on DRAM are correct? i) Page mode read operation is faster than RAS read. ii) RAS input remains active during column address strobe. iii) The row and column addresses are strobed into the ... RAS and CAS inputs respectively. a) i & iii b) i & ii c) all d) iii
Last Answer : d) iii
Description : In 8279 Strobed input mode, the control line goes low. The data on return lines is strobed in the ____. a) FIFO byte by byte b) FILO byte by byte c) LIFO byte by byte d) LILO byte by byte.
Last Answer : a) FIFO byte by byte
Description : L2 cache memory is places at ______ a. On Processor b. On Mother Board c. On Memory d. All of these
Last Answer : b. On Mother Board