Most of the digital computers do not have floating point hardware because_____________?

A NAND gate is called a universal logic element because______________?

A. it is used by everybody

B. any logic function can be realized by NAND gates alone

C. all the minization techniques are applicable for optimum NAND gate realization

D. many digital computers use NAND gates

In which of the following base systems is 123 not a valid number ?

A. Base 10

B. Base 16

C. Base8

D. Base 3

The binary code of (21.125)10 is_______________?

A. 10101.001

B. 10100.001

C. 10101.010

D. 10100.111

Digital computers are more widely used as compared to analog computers, because they are______________?

A. less expensive

B. always more accurate and faster

C. useful over wider ranges of problem types

D. easier to maintain

Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000 ?

A. Two’s complement only

B. Sign and magnitude and one’s complement only

C. Two’s complement and one’s complement only

D. All three representations