Computer system architecture

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

• binary

• decimal

• hexadecimal

• All of the above

An OR gate can be imagined as

• switches connected in series.

• switches connected in parallel

• MOS transistors connected in series

• All of the above

A NOR gate has two or more input signals. All input must be _____ to get a high output

• low

• highC

• 1'sD

• some low some high

Which of the following expressions is in the sum-of-products (SOP) form?

• (A + B)(C + D)

• (A)B(CD)

• AB(CD)

• AB + CD

From the truth table above , determine the standard SOP expression.

• A'B'C' + ABC+AB'C

• ABC + ABC + ABC

• A'B'C + A'BC + ABC'

• AB'C + A'BC + ABC'

n Boolean algebra, A + 1 = 1.

• True

• False

In Boolean algebra, A+AB= A.

• True

• False

A Karnaugh map is similar to a truth table because it presents all the possible values of input variables and the resulting output of each value.

• True

• False

By applying De Morgan's theorem to a NOR gate, two identical truth tables can be produced.

• True

• False

How many gates would be required to implement the following Boolean expression before simplification? XY + X(X + Z) + Y(X + Z)

• 1

• 2

• 4

• 5