Introduction to Logic Gates - Including Questions and Applications

The first file is an Introduction to AND, OR and NOT gates together with their truth tables, followed by seven questions.
The second file gives the answers.
The third file is a worksheet consisting of seven questions, four of which use combinations of AND, OR and NOT gates. This is designed to consolidate student’s knowledge and can be set for homework.
The fourth file gives the answers.
The fifth file gives six different applications of the use of AND, OR and NOT gates. They start off as simple questions and become progressively harder. It also introduces the thermistor and LDR as input sensors as well as the need for a relay to operate the output device in certain circumstances. It uses block diagrams to describe circuits.
The sixth file gives the answers.