Neco 2017 Computer Studies Question 2

Practice essay / theory question 2 from the 2017 Neco Computer Studies examination. This question covers Computer Hardware .

Neco 2017 Computer Studies Essay / Theory

Topic: Computer Hardware

Question 2 NECO • 2017 • COMPUTER_STUDIES • essay

A small office computer system has the following components: - CPU (Intel i5, 65 W) - Monitor (24‑inch LCD, 30 W) - Hard disk (500 GB HDD, 8 W) - SSD (256 GB, 3 W) - Printer (laser, 350 W when printing, 5 W idle) - UPS with 90 % efficiency. The office operates 8 hours per day. The printer is used for 2 hours per day at full load; otherwise it remains idle. All other components run continuously during office hours.

Question Parts

( a )

Calculate the total energy consumption of the computer system for one working day (in kilowatt‑hours).

( b )

Determine the minimum VA rating of a UPS that can supply the system for a 30‑minute backup, assuming the UPS operates at its rated 90 % efficiency and the load during backup is the same as the average load during office hours.

( c )

Explain why it is advisable to choose a UPS with a higher VA rating than the minimum calculated value.

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 2017 Computer Studies Question 2. It is one of the essay questions from the 2017 Neco Computer Studies examination.

The question covers Computer Hardware .

View More Neco 2017 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