MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DIGITAL LOGIC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In Boolean algebra, the bar sign (-) indicates ____
A
OR operation
B
AND operation
C
NOT operation
D
None of the above
Explanation: 

Detailed explanation-1: -RULE IN BOOLEAN ALGEBRA Complement of a variable is represented by an overbar (-). Thus, complement of variable B is represented as . Thus if B = 0 then = 1 and B = 1 then = 0.

Detailed explanation-2: -The OR symbol has its roots in Boolean algebra, a field of mathematics concerned with the logical relationship between statements in an expression. Each statement in the expression returns a truth value of either true or false–1 or 0, respectively.

Detailed explanation-3: -Second, Boolean algebra uses logical operators such as conjunction (and) denoted as ∧, disjunction (or) denoted as ∨, and the negation (not) denoted as ¬.

Detailed explanation-4: -The important operations performed in Boolean algebra are – conjunction (∧), disjunction (∨) and negation (¬).

There is 1 question to complete.