Digital Electronics - Digital Arithmetic Operations and Circuits

Exercise :: Digital Arithmetic Operations and Circuits - Filling the Blanks
1.
In VHDL, the architecture declaration always begins with the ________ of variable signals or components that will be used in the concurrent description between BEGIN and END.

A.
type B.
vectors C.
functions D.
declarations

Answer: Option D

Explanation:

2.
When decimal numbers with several digits are to be added together using BCD adders ________.

A.
a separated BCD adder is required for each digit position B.
the BCD adders must have the carry-outs grounded C.
the BCD's must be grouped in twos D.
full adders are also used

Answer: Option A

Explanation:

3.
The binary adder circuit is designed to add ________ binary number(s) at a time.

Answer: Option C

Explanation:

4.
The 74HC382 ALU can perform ________ operations.

Answer: Option C

Explanation:

5.
Subtraction of the 2's-complement system actually involves the operation of ________.

A.
multiplication B.
subtraction C.
addition D.
division

Answer: Option C

Explanation: