32_TG_V2_Computer Science_10_Revision_Presentation of Data

You can demonstrate several ways of conversion and choose the best option for you with the students

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Demonstrate using a calculator in programmer mode to check the results of a translation operation.

Perform a mutual evaluation to verify the results by demonstrating the correct template with the fields filled in.

Consider using logical functions in spreadsheets, or using a branching algorithm using logical bundles AND, OR, NOT.

2-input AND Gate

For a 2-input AND gate, the output Q is true if BOTH input A “AND” input B are both true, giving the Boolean Expression of: ( Q = A and B ).

Note that the Boolean Expression for a two input AND gate can be written as: A.B or just simply AB without the decimal point.

2-input OR (Inclusive OR) Gate

For a 2-input OR gate, the output Q is true if EITHER input A “OR” input B is true, giving the Boolean Expression of: ( Q = A or B ).

NOT Gate (Inverter)

For a single input NOT gate, the output Q is ONLY true when the input is “NOT” true, the output is the inverse or complement of the input giving the Boolean Expression of: ( Q = NOT A ).

The NAND and the NOR Gates are a combination of the AND and OR Gates respectively with that of a NOT Gate (inverter)

2-input NAND (Not AND) Gate

For a 2-input NAND gate, the output Q is true if BOTH input A and input B are NOT true, giving the Boolean Expression of: ( Q = not(A AND B) ).

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