A binary adder is a logic circuit that can add _____ binary numbers at a time.

How many full adders are needed to add two 4 bit numbers with a parallel adder ?

A

8

B

4

C

2

D

16

What is the name of the logic circuit which can add two binary digits?

A

Full adder

B

Half adder

C

Buffer

D

Register

E

None of the above

An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is

A

NOR

B

NAND

C

OR

D

NOT

E

None of the above

সাথী সাদৃশ্যানুমানমূলক আরোহ সম্পর্কে ধারণা লাভের জন্য কিছু গ্রন্থের সহায়তা নেয়। এক্ষেত্রে যে গ্রন্থসমূহ সমর্থনযোগ্য- i. A System of Logic ii. A Manual of Logic iii. Introduction to Logic নিচের কোনটি সঠিক?

A

i ও ii

B

i ও iii

C

ii ও iii

D

i ii ও iii

A full-adder adds _____ bits, and producing a SUM and a _____

A

8, SUBTRACTION

B

3, CARRY

C

16, DIVIDE

D

All of the above

E

None of the above

Positive logic in a logic circuit is one in which

A

logic 0 and 1 are represented by 0 and positive voltage respectively

B

logic 0 and, -1 are represented by negative and positive voltages respectively

C

logic 0 voltage level is higher than logic 1 voltage level

D

logic 0 voltage level is lower than logic 1 voltage level.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A

(5, 19, 9)

B

(7, 29, 13)

C

(15, 59, 29)

D

(12, 47, 23)

The ALU carries out arithmetic and logic operations. It processes _____ numbers rather than decimal numbers.

A

decimal

B

hexadecimal

C

binary

D

All of the above

E

None of the above

A half-adder adds _____ bits

A

16

B

8

C

10

D

2

E

None of the above

In a set of three numbers, the average of first two numbers is 2. The average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers ?

A

3

B

6

C

9

D

24

A binary adder is a logic circuit that can add _____ binary numbers at a time.

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