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(A) controller gets opportunity to transfer only one word in a timeslot (B) CPU releases the bus and DMA controller can use endlessly (C) 100 bytes are allowed to be transferred (D) none of these.

1

Sayani saha

Asked: April 12, 2021In: MAKAUT

1.i) According to Boolean algebra which of the following relations is not valid ?

1

i) X(Y, Z) = ( XY ) Z ii) X(Y+Z)=XY+XZ iii) X+XZ=X iv) X(X+Y)=1.

1

eduhilfe

Asked: September 15, 2020In: MAKAUT

1.(x) Which of the following declaration is invalid

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(a) int 2A (b) int A2A (c) int A2 (d) int AA2

1

Sayani saha

Asked: January 27, 2021In: MAKAUT

1(ii). If the applied voltage across a lamp is reduced by 50%, then the power consumption will reduce to

1

a) 50% b) 75% c) 25% d) 40%

1

Sayani saha

Asked: March 30, 2021In: MAKAUT

1.xii) Gray code of a binary number 1011 is

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a) 1110 b) 1100 c) 1101 d) 1111.

1

Sayani saha

Asked: January 25, 2021In: MAKAUT

1(xv). The number of possible arrangements of two fermions in three cells is

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a) 9 b) 6 c) 3 d) 1

Find a quadratic polynomial, the sum and product of whose zeroes are – 3 and 2, respectively.

1(x). The addressing mode of an instruction is resolved by

1(viii). For which of the following multiplier numbers in Booth’s algorithm maximum no. of additions and subtractions are required?

1.i) Maximum efficiency of transformer coupled class A power amplifier is

16. Find a G.P. for which sum of the first two terms is – 4 and the fifth term is 4 times the third term.

8(c). A three level memory system having cache access time of 5 nsec and disk access time of 40 nsec, has a cache hit ratio of 0.96 and main memory hit ratio of 0.9. What should be the main memory access time to achieve an overall access time of 16 nsec ?

1(ii). The logic circuitry in ALU is

1(v). To make a queue empty, elements can be deleted till

1(i). A butterfly is flying inside a hollow sphere. What is the type of constrain?

1(v). (2R, 4S)-2, 4-dichloropentane and (2S, 4R)-2, 4-dichloropentane are

11.a) Minimize the following expression using Karnaugh Map.

1.ix) A bubbled AND gate is equivalent to a

8. Write a program using procedures / functions to create a dynamic array of integers given its size, then fill it with random numbers in the range 100 – 1000, then print it and then check whether a given integer in the same range is there in the array.

8(b). A coil of resistance of 30 $\Omega$ and inductance 320mH is connected in parallel to a circuit consisting of a 75 $\Omega$ resistor in series with 150 $\mu$ F capacitor. The circuit is connected to a 200 V , 50 Hz supply.Determine the supply current and circuit power factor.

12(c). Derive the Maxwell’s wave equation for a charge free non-conducting medium. Hence prove that speed of light in a non-conducting medium is less than the speed of light in vacuum.

11.b) Draw the circuit for a 4-bit Johnson counter using D flip-flop & explain its operation. Draw its timing diagram. How does its timing diagram differ from that of Ring counter?

10(c) Write a C program to find the GCD to two numbers.

1(viii). The CPI value for RISC processor is

1.iv) An example of reflected code is

1(ix). In DMA the term cycle stealing means

1.i) According to Boolean algebra which of the following relations is not valid ?

1.(x) Which of the following declaration is invalid

1(ii). If the applied voltage across a lamp is reduced by 50%, then the power consumption will reduce to

1.xii) Gray code of a binary number 1011 is

1(xv). The number of possible arrangements of two fermions in three cells is

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