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Higher Study | Digital Logic

Number Representations and Computer Arithmetic
Which of the following is false?
How many AND gates are required for a 1-to-8 multiplexer?
An adder in which the bits of the operands are added one after another is
The decimal equivalent of hexadecimal number BAD is
When two asynchronous active low inputs PRESET and CLEAR are applied to a J-K flip flop the output will be
Consider the values A = 2.0 × 1030, B = -2.0 × 1030 C = 1.0. Assume, that the floating point numbers are represented with 32 bits. What are the values of X and Y, when the following sequence of operations are executed on a computer? X = A + B Y = A + C X = X + C Y = Y + B
The outputs Q and Q̅ of the master-slave SR flip-flop are connected to its R and S inputs respectively. The output Q when clock pulses are applied will be:
In a J-K flip flop, when Jn = 0 and Kn = 1, the output Qn + 1 will have a value of:
Which of the following logic gates has output low when one of the inputs is high?
The 2-input XOR has a high output only when the input values are
When two n-bit binary numbers are added the sum will contain at the most
Which one of the following circuits implements the Boolean function given below? f(x, y,z) = m0 + m1 + m3 +m4 + m5 + m6, where mi is the ith minterm.
Consider the following combinational function block involving four Boolean variables x, y, a, b where x, a, b are inputs and y is the output. f (x, y, a, b) (                 if (x is 1) y = a;                 else y = b; } Which one of the following digital logic blocks is the most suitable for implementing this function?
Let, x1 ⊕ x2 ⊕ x3 ⊕ x4 = 0 where x1, x2, x3, x4 are Boolean variables, and ⊕ is the XOR operator. Which one of the following must always is TRUE?
Given f(w, x, y, z) = ∑m (0, 1, 2, 3, 7, 8, 10) + ∑d (5, 6, 11, 15), where d represents the don’t-care condition in Karnaugh maps. Which of the following is a minimum product-of-sums (POS) form of f(w, x, y, z)?
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