Neco 2025 Computer Studies Question 8

Practice essay / theory question 8 from the 2025 Neco Computer Studies examination. This question covers Basic Programming, Python, File Handling, Control Structures .

Neco 2025 Computer Studies Essay / Theory
Topics: Basic Programming Python File Handling Control Structures
Question 8 NECO • 2025 • COMPUTER_STUDIES • essay

You are required to write a Python program that reads a text file named **students.txt** containing student names and their scores in three subjects, calculates each student's total and average, assigns a grade (A, B, C, D, F) based on the average, and writes the results to a new file called **results.txt**.

Question Parts

( a )
Write the complete Python program using appropriate variables, loops, conditional statements and file handling. Include error handling for a missing input file and for non‑numeric scores.
( b )
Refactor the program by defining a function **calculate_grade(avg)** that returns the appropriate grade, and modify the main code to use this function. Show the updated program.
( c )
If the class contains 40 students, estimate the time complexity of the program in Big‑O notation and justify your answer.
( d )
Explain how you would modify the program to store the data in a CSV file and later read it using Python’s **csv** module. Mention at least two advantages of using CSV over the plain‑text format described in part (a).

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About This Question

This is Neco 2025 Computer Studies Question 8. It is one of the essay questions from the 2025 Neco Computer Studies examination.

The question covers Basic Programming, Python, File Handling, Control Structures .

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