Description : Which of the following statements are true ? I. A circuit that adds two bits, producing a sum bit and a carry bit is called half adder. II. A circuit that adds two bits, producing a sum bit and a carry bit is called full adder. ... an inverter. (A) I & II (B) II & III (C) I, II, III (D) I, III & IV
Last Answer : (D) I, III & IV
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 : Consider a full-adder with the following input values: (a) x=1, y=0 and Ci(carry input) = 0 (b) x=0, y=1 and Ci = 1 Compute the values of S(sum) and C0 (carry output) for the above input values. (A) S=1 , C0= 0 and ... C0= 1 (C) S=1 , C0= 1 and S=0 , C0= 0 (D) S=0 , C0= 1 and S=1 , C0= 0
Last Answer : (A) S=1 , C0= 0 and S=0 , C0= 1
Description : The control unit of a microprocessor A) Stores data in the memory B) Accepts input data from keyboard C) Performs arithmetic/logic function D) None of above
Last Answer : Answer : D
Description : In 8086 the overflow flag is set when a) The sum is more than 16 bits b) Signed numbers go out of their range after an arithmetic operation c) Carry and sign flags are set
Last Answer : b) Signed numbers go out of their range after an arithmetic operation
Description : Artificial intelligence is A . It uses machine-learning techniques. Here program can learn From past experience and adapt themselves to new situations B. Computational procedure that takes some ... performs tasks that would require intelligence when performed by humans D . None of these
Last Answer : C. Science of making machines performs tasks that would require intelligence when performed by humans
Description : A full adder logic circuit will have (A) Two inputs and one output. (B) Three inputs and three outputs. (C) Two inputs and two outputs. (D) Three inputs and two outputs.
Last Answer : Ans: D A full adder circuit will add two bits and it will also accounts the carry input generated in the previous stage. Thus three inputs and two outputs (Sum and Carry) are there.
Description : Compare combinational logic circuit and sequential logic circuit
Last Answer : Combinational logic Sequential logic The combinational logic circuit consists of logic gate only Sequential logic circuit consists of combinational logic circuit along with memory for storage of ... , multiplexer, demultiplexer etc E.g. counters, shift registers flip-flop etc
Description : The correction to be applied in decimal adder to the generated sum is (A) 00101 (B) 00110 (C) 01101 (D) 01010
Last Answer : Ans: B The correction to be applied in decimal adder to the generated sum is 00110. When the four bit sum is more than 9 then the sum is invalid. In such cases, add +6(i.e. 0110) to the ... the six invalid states. If a carry is generated when adding 6, add the carry to the next four bit group .
Description : The size of the ROM required to build an 8-bit adder/subtractor with mode control, carry input, carry output and two’s complement overflow output is given as
Last Answer : (B) 218 × 10
Description : Which algorithm includes repeated addition of two predetermined values A and S to a product P and then performs a rightward arithmetic shift on P. a. Booth’s algorithm b. Usual algorithm c. Multiplication algorithm d. None of these
Last Answer : a. Booth’s algorithm
Description : Which are the operation of versatility: a. exchange of information with the outside world via I/O device b. Transfer of data internally with in the central processing unit c. Performs of the basic arithmetic operations d. = Allof these
Last Answer : d. = Allof these
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
Last Answer : d. Allof these
Description : Which part of the Central Processing Unit (CPU) performs calculation and makes decisions: (A) Arithmetic Logic Unit (B) Alternating Logic Unit (C) Alternate Local Unit (D) American Logic Unit
Last Answer : (A) Arithmetic Logic Unit
Description : Which of the following is a sequential circuit? (A) Multiplexer (B) Decoder (C) Counter (D) Full adder
Last Answer : (C) Counter
Description : Which control unit is implemented as combinational circuit in the hardware. a. Microprogrammed control unit b. Hardwired control unit c Blockprogrammed control unit d. Macroprogrammed control unit
Last Answer : b. Hardwired control unit
Description : What is a sequential circuit and What is a combinational circuit?Is there any difference between them? If yes what is it?
Last Answer : Ans-Combinational circuit are those whose output depends only upon the present inputs but in sequential circuit the output depends upon both present and past inputs. that is the difference.
Description : What is a sequential circuit and What is a combinational circuit? Is there any difference between them? If yes what is it?
Last Answer : Ans-Combinational circuit are those whose output depends only upon the present inputs but in sequential circuit the output depends upon both present and past inputs. that is the difference Combinational ... the feedback path. Ex of SEQ Circuit: Encoder Decoder etc Ex of Comb Circuit; Flipflop
Description : Which of the following logic operations is performed by the following given combinational circuit ? (A) EXCLUSIVE-OR (B) EXCLUSIVE-NOR (C) NAND (D) NOR
Last Answer : (A) EXCLUSIVE-OR
Description : What type of adder is used to handle a carry from a previous circuit?
Last Answer : Full adder.
Description : What is the difference between a summing amplifier and an adder circuit?
Last Answer : The adder simply adds the input signals together while the summing amplifier multiplies the sum of the input signals by the gain of circuit.
Description : Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. a. Circuit A has more gates than circuit B b. Circuit B has more gates than circuit A c. Circuit A has the same number of gates as circuit B
Last Answer : a. Circuit A has more gates than circuit
Description : Describe how Op-Amp is used as adder using circuit diagram and output voltage equation.
Last Answer : Summing Amplifier Circuit In this simple summing amplifier circuit, the output voltage, ( Vout ) now becomes proportional to the sum of the input voltages, V1, V2, V3, etc. Then we can ... to the non-inverting input of the op-amp, it will produce the positive sum of the input voltages.
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 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 : Consider a source computer(S) transmitting a file of size 106 bits to a destination computer (D)over a network of two routers (R1 and R2) and three links(L1, L2, and L3). L1connects S to R1; L2 connects R1 to ... file from S to D? a. 1005 ms b. 1010 ms c. 3000 ms d. 3003 ms Answer: Option(a)
Last Answer : a. 1005 ms
Description : Which among the following is correct characteristics about proxy server: a) A proxy server may act as a firewall by responding to input packets in the manner of an application while blocking other packets. b) A ... as a proxy on behalf of the network user; d) All of the Above e) None of These
Last Answer : d) All of the Above
Description : Define Half adder and full adder
Last Answer : The logic circuit that performs the addition of two bits is a half adder. The circuit that performs the addition of three bits is a full adder.
Description : Define half adder and full adder
Description : The BCD adder to add two decimal digits needs minimum of (A) 6 full adders and 2 half adders (B) 5 full adders and 3 half adders (C) 4 full adders and 3 half adders (D) 5 full adders and 2 half adders
Last Answer : (D) 5 full adders and 2 half adders
Description : What Sum of the terms of Arithmetic Progression If a boy saved 25 on the first day 27 on the second day 29 the third day and so on how many days it will take him to save 880?
Last Answer : On the 20th day, you would reach 880. ---------------------------------------- Sum(AP) = ½n(2a + (n-1)d) here: Sum(AP) = 880 a (first term) = 25 d (common difference) = 2 n (number of ... The sum of an AP can also be expressed as ½ Ã- n Ã- (first + last) since last = first + (n - 1) Ã- difference.
Description : The sum of the first 12 terms of the arithmetic sequence tn=15-3n is?
Last Answer : tn=15-3nt1=15-3x1=12t2=15-3x2=9d=t2-t1/d=9-12=-3tn=t1+(n-1)xdtn=12+(12-1)x-312+11x-3=12+(-33)=-21=tnSn=n/2x(tn+t1)=S12=12/2 x(-21 +12)=6 x -9=-54
Description : A bending moment may be defined as: (A) Arithmetic sum of the moments of all the forces on either side of the section (B) Arithmetic sum of the forces on either side of the section (C) Algebraic sum of the moments of all the forces on either side of the section (D) None of these
Last Answer : (C) Algebraic sum of the moments of all the forces on either side of the section
Description : When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures. (A) Sum (B) Difference (C) Arithmetic mean (D) Geometric mean
Last Answer : Answer: Option B
Description : If arithmetic of 6 numbers is 17 then the sum of numbers is---- (a) 102 (b) 103 © 150 (d) 120.
Last Answer : (a) 102
Description : Total cost is the arithmetic sum of (a) AFC and AVC ; (b) FC and Variable cost ; (c) Marginal cost and variable cost; (d) Sunk cost and fixed cost
Last Answer : (b) FC and Variable cost ;
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
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 : Answer : C
Description : A micropocessor consists of: a) Arithmetic Logic Unit (ALU) b) Memories c) Input / Output devices d) All the above
Last Answer : Ans: A
Description : For minimum work input in a two stage compression process the intermediated pressure is the A. Arithmetic process of suction and discharge pressure B. Logarithmic mean of suction and discharge pressure C. Geometric mean of suction and discharge pressure D. Hyperbolic mean of suction and discharge
Last Answer : ANSWER : C
Description : Which unit is responsible for converting the data received from the user into computer understandable format? a) Memory Unit b) Arithmetic & Logic Unit c) Input Unit d) Output Unit
Last Answer : Answer: c Explanation: The Input Unit converts the data, which the user enters into a language which the computer understands, i.e. it converts the data into binary format. The ... after immediate results of processing whereas; the ALU is responsible for various arithmetic and bitwise operations
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 : Control unit, arithmetic-logic unit and primary storage
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 : Arithmetic logic and control unit
Last Answer : c. Control unit, arithmetic-logic unit and primary storage
Last Answer : d. Arithmetic logic and control unit
Description : Arithmetic and Logic Unit I. Perform Arithmetic operations II. Store Data III. Perform comparisons IV. Communicate with input devices Which of the following is true ? (1) I only (2) III only (3) I and II (4) I and III
Last Answer : I and III
Description : If the control signals are generated by combinational logic, then they are generated by a type of _______________ controlled unit. a) Micro programmed b) Software c) Logic d) Hardwired
Last Answer : Answer: d Explanation: The main task of a control unit is to generate control signals. There are two main types of control units: A hardwired control unit generates control ... combinational logic circuits and the Micro programmed control unit generates control signals by using some softwares
Description : Define combinational logic
Last Answer : When logic gates are connected together to produce a specified output for certain specified combinations of input variables, with no storage involved, the resulting circuit is called combinational logic.