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5.	Which of the following is termed as minimum error code?
	A.  Gray code
	B.  Octal code
	C.  Excess 3 code
	D.  Binary code

Answer

Ans: A Gray code

6.	The range for 13-bits complement numbers, expressed in decimal, is from
	A.  -127 to +128
	B.  -127 to +127
	C.  -128 to +128
	D.  -128 to +127

Answer

Ans: D -128 to +127

7.	Which logic gate is unipolar behavior?
	A.  PMOS
	B.  NMOS
	C.  CMOS
	D.  All of these

Answer

Ans: D All of these

8.	In which year was the first analog computer built by an American named vinegar Bush?
	A.  1930
	B.  1920
	C.  1940
	D.  1950

Answer

Ans: A 1930