Page 108 - Computer Science V2.0 Class 11

Start

Input personal
details

False
age>=18

True
print issue a print not eligible
Voter's ID card for Voter's ID card

Stop

Fig 4.4: Flowchart to issue a voter's identity card if eligible

Note that the flowchart in Fig 4.4 is an informal description for printing the Voter's ID using a machine. In practice,
fetching personal information would require more refined information such as name, gender, date of birth, a declaration
that the applicant is a citizen of India, and a photograph of the applicant. Similarly, printing the Voter's ID card would
require printing the relevant information on a card of suitable size.
Next, we write a pseudocode for the flowchart in Fig 4.4. First, we identify the inputs, output, and process informally.

Input: Personal details.
Output: Voter's card, if the person is eligible to vote, otherwise a message that the person is ineligible to vote.
Process: Examine the age of the person and issue a Voter's ID card if eligible. Otherwise, inform that the person is
ineligible to vote.
Pseudocode:

input: name, gender, date of birth, address, Photograph
process: a person with an age greater than or equal to 18
is eligible to receive a voter's ID

output: appropriate message according to the person's eligibility
Compute age from date of birth

if age >= 18 then

print('Issue a Voter's ID Card')
else
print('Not eligible for Voter's ID Card')
In the above pseudocode, we say: Compute age from date of birth. Here you may ask, is it an effective
step, i.e., is it executable? The answer is very simple, it is an effective step, if you know how to compute age from the
date of birth, otherwise, it is not.

Indentation: You must have noted that the text following the words if, then, and else is shifted slightly to the
right. This is done to enhance the readability of the pseudocode. So, you must make it a point to write well-indented
pseudocode.

94 Touchpad Computer Science (Ver. 2.0)-XI