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Session 7 Lesson Plan Computer Systems

Intro to Session

Logic Gates Test

Draw out a truth tables for the following gates

1.

2.

3.

4. What gate has the following truth table?

5. What type of gate is the following

6. What is the iec diagram for this gate

7. Draw the iec gate for the following

Q = (A AND NOT B) OR (B AND NOT A)

8. What is the function of the inverting circle?

9. What is the original dagram for

10. Draw a truth table for this gate.

11. Draw a truth table for this gate combination

12. Name the 3 gates involved in the above?

13. Draw a quad nand gate and show its truth table.

End of test

Ways of thinking of gates

And Gate

Or Gate

What can we do with Gates?

Lets have a look at what we can do with some of these Logic gates

Simple adders

Half Adder

Full Adder

or

Multiple adder circuits can be used to create proper integrated circuits

Names to remember

RTL: resistor-transistor logic,

DTL: diode-transistor logic,

TTL: transistor-transistor logic,

NMOS: N-channel metal-oxide silicon,

CMOS: complementary metal-oxide silicon and

ECL: emitter-coupled logic.

Other logic gate symbols

 

 

Draw a half adder circuit - draw the truth table for this

 

Draw a full adder circuit - draw a truth table for this

 

Draw a fip flop - draw a truth table for this.

Types of simple ic's

Homework Simulations This site requires that you download some software to run the simultations. Theses can be done at home. Learn the full and half adders and flip flops for next weeks test.

Health & Safety Checks/Materials and equipment required:

Risk Assessment
Mobile White Boards
Materials
Multimedia Projector
White Board / Pens / White board cleaner / White board eraser
Computers with Windows XP, Dreamweaver, Fireworks, Flash, MS Project
Student mini white boards and pens

Previous learning assumed:

Knowledge of: DB, VB, Web, Spreadsheets from year 1 syllabus.