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ASCII is made up of 128 symbols in the character set. These symbols consist of letters (both uppercase and
lowercase), numbers, punctuation marks, special characters and control characters.
Interdisciplinary Learning
#Mathematics
Look at these binary codes of numbers 1-10.
Number Binary Number Binary
1 0001 6 0110
2 0010 7 0111
3 0011 8 1000
4 0100 9 1001
5 0101 10 1010
Now answer the following in binary numbers:
1. Write all the prime numbers between 1 and 10.
2. Write all the even numbers between 1 and 10.
3. Write the sum of 5 and 4.
4. Write all the numbers divisible by 3 between 1 and 10.
#Activity
CONDITIONS IN A PROGRAM
While writing a program, we need to make certain decisions based on the logic of the program. Such
situations are called conditions. Conditional statements are used in a program to instruct the computer
to make a decision. The result of a condition will always be either true or false. The different conditional
statements used in a program are:
if-then-else
The program executes the statements written after ‘if’ when the if condition is true. If the condition is
false, the statements written after ‘else’ will be executed.
122 Plus (Ver. 4.0)-VII

