Page 22 - Touchcode_C7_Flipbook
P. 22
Coding fact
Google was founded by Larry Page and Sergey Brin when they were
Ph.D. students at Stanford University in California.
In both daily tasks and coding, if we don’t put every step in the right sequence, the result
will be different from what we want.
So, the sequence is a list of activities which can be done one after another. It refers to the
specific order in which we need to perform the activities in order to get the desired output.
Coding uiz 01 Critical Thinking
State whether the following statements are true (T) or false (F).
a. A sequence in programming is an ordered set of instructions.
b. Loops make the code easier to understand.
EXAMPLES OF SEQUENCE, SELECTION AND ITERATION
To understand the concept of sequencing in programming. Let’s take an example of
sequence, selection and iteration.
Subject Enrichment
Example 1: Algorithm to swap two numbers. (Sequence)
Step 1: Start
Step 2: READ num1, num2
Step 3: temp=num1
Step 4: num1=num2
Step 5: num2=temp
Step 6: PRINT num1, num2
Step 7: Stop
To reach the final output, you need to follow the algorithm step by step.
Explanation: Read two numbers ‘num1’ and ‘num2’ that need to be swapped. Assign the
value of ‘num1’ to a temporary variable called ‘temp’ and the value of ‘num2’ to ‘num1’.
20 Touchcode-VII

