Page 21 - TechPluse_C7_Flipbook
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Lab Session Subject Enrichment
Demonstrate the concept of punched cards as used in the earlier to input data into computers.
Observe how time consuming method it was.
Fill in the following table with the binary values that correspond to the given decimal values. A
few of the binary values given.
Decimal Binary Decimal Binary Decimal Binary Decimal Binary Decimal Binary
0 7 14 21 28
1 8 15 22 29
2 9 16 23 30
3 10 17 24 31
4 11 1011 18 25 11001 32
Teacher's Note
1. Talk to the children about the importance of number systems and their use in computers.
2. Do a detailed walk-through of the decimal and binary number systems and their different operations in
a mathematically rigorous manner.
3. Give a brief on octal and hexadecimal number systems.
Number System 19

