Computer Knowledge

Digital Logic and Microprocessors

735 Questions

Digital logic and microprocessors form the core of computer science, covering logic gates, combinational and sequential circuits, and CPU architecture. These topics are crucial for computer knowledge sections in technical exams. Test your digital electronics basics here.

Logic gates and circuitsCombinational vs sequential circuitsMicroprocessor instructionsTruth tables and boolean functions

Digital Logic and Microprocessors Questions

Multiple choice

In Positive logic, logic state 1 corresponds to

  1. positive voltage.

  2. higher voltage.

  3. zero voltage.

  4. lower voltage.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In positive logic, the higher voltage level is assigned the value of 1, and the lower voltage level is assigned the value of 0.

Multiple choice

Arithmetic Operation are coded in.

  1. Decision symbols.

  2. Processing symbols.

  3. Terminal symbols.

  4. I/o symbols.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In flowcharting, arithmetic operations and data manipulations are represented by rectangular processing symbols.

Multiple choice

Arithmetic operations are coded in

  1. Decision symbols

  2. I/O

  3. Processing symbols

  4. Terminal symbols
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In flowcharts, arithmetic operations and data manipulations are represented by rectangular processing symbols.

Multiple choice

An AND gate can be imagined as

  1. Switches connected in series

  2. Switches connected in parallel

  3. MOS transistors in series

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An AND gate requires all inputs to be 1 to produce a 1 output, which is logically equivalent to switches connected in series where current only flows if all switches are closed.