Neco 2023 Computer Studies Question 5

Practice essay / theory question 5 from the 2023 Neco Computer Studies examination. This question covers Data representation, Binary arithmetic, Storage calculation, Cost‑benefit analysis .

Neco 2023 Computer Studies Essay / Theory
Topics: Data representation Binary arithmetic Storage calculation Cost‑benefit analysis
Question 5 NECO • 2023 • COMPUTER_STUDIES • essay

A secondary school intends to maintain an electronic student information system. Each student record will contain the following fields: - Admission Number (8 alphanumeric characters) - Full Name (maximum 30 characters) - Date of Birth (stored as DD/MM/YYYY) - Gender (M/F) - Scores in five subjects (each score stored as an integer from 0 to 100) The system will initially hold records for 1,200 students.

Question Parts

( a )
Determine the minimum number of bits required to store a single student record. Show your reasoning for each field.
( b )
Calculate the total storage (in kilobytes) required for all 1,200 records. Assume 1 byte = 8 bits and 1 kilobyte = 1024 bytes. Round up to the nearest whole kilobyte.
( c )
The school can purchase either a 1‑GB USB flash drive costing ₦4,500 or a 500‑MB external hard disk costing ₦3,200. Recommend the most suitable storage medium for the system, justifying your choice based on capacity, cost per megabyte, and future expansion (assume a 20 % increase in student numbers next year). State the recommended device and its cost.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Neco 2023 Computer Studies Question 5. It is one of the essay questions from the 2023 Neco Computer Studies examination.

The question covers Data representation, Binary arithmetic, Storage calculation, Cost‑benefit analysis .

View More Neco 2023 Computer Studies Questions More Neco Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support