Neco 2020 Computer Studies Question 5

Practice essay / theory question 5 from the 2020 Neco Computer Studies examination. This question covers Data representation and storage, Binary arithmetic, Computer hardware, Data backup and storage management .

Neco 2020 Computer Studies Essay / Theory
Topics: Data representation and storage Binary arithmetic Computer hardware Data backup and storage management
Question 5 NECO • 2020 • COMPUTER_STUDIES • essay

A secondary school is planning to upgrade its computer laboratory. The lab currently has 30 desktop computers, each equipped with a 500 GB hard disk drive. The school intends to replace the hard drives with solid‑state drives (SSDs) of 256 GB each and to add a central network‑attached storage (NAS) device that will provide a total of 8 TB of shared storage for students' projects. The school also wants to ensure that all data are backed up daily to an external USB‑hard drive of 2 TB capacity. Answer the following questions:

Question Parts

( a )
Calculate the total storage capacity (in gigabytes) that will be available after the SSD upgrade, excluding the NAS device.
( b )
Express the total storage capacity obtained in part (a) in bits. (Use 1 byte = 8 bits and 1 GB = 2^30 bytes.)
( c )
Discuss two advantages of using SSDs instead of HDDs in the laboratory, focusing on performance and reliability.
( d )
Propose a simple daily backup routine that uses the external 2 TB USB‑hard drive to protect the data on the NAS. Include at least three steps and explain why each step is important.

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About This Question

This is Neco 2020 Computer Studies Question 5. It is one of the essay questions from the 2020 Neco Computer Studies examination.

The question covers Data representation and storage, Binary arithmetic, Computer hardware, Data backup and storage management .

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