Computer systems require routine maintenance for their data and software to ensure efficiency and prevent breakdowns.

The maintenance tasks are outlined in the following sections.

1. Disk Formatting
2. ANTIVIRUS SCANS
3. Software Updates
4. Backups
5. Disk Defragmenting
6. Disk Cleanup

Disk Formatting

New secondary storages need to be formatted before use.

Disk formatting refers to preparing a secondary storage medium for use by the computer system.

This includes structuring the initial data on the disk so that new data can be stored and managed effectively.

ANTIVIRUS SCANS

A computer virus is malicious software that is harmful to computer programs and data.

They are usually created to damage or disrupt the functioning of computer systems for malicious purposes.

Protective antivirus software  prevents infections from computer viruses and can remove existing viruses in computer systems.

Antivirus software removes existing viruses via scanning or searching through computer software and data for virus infections.

Software Updates

Both system software (including the operating system) and application software may require updates from the manufacturers for improvement to features and to fix  existing issues.   This process is sometimes automatic  or may require intervention from the computer user.

Examples include Windows updates, MS Office updates.

Backups

A backup is a duplicate or copy of data.   Computer systems are backed up to recover  from accidental or malicious data loss or corruption.

Reasons for data loss include

• Theft
• Hardware Failure
• Viruses
• Fire
• Natural Disaster

Usually the backup is stored off-site in another physical location to the computer system.

Backups can be scheduled automatically or performed manually by the user.

Disk Defragmenting

Files stored on a computer may not be stored in continuous blocks of data.    A computer is most efficient when reading data that is stored in large continuous blocks.

Over time, files stored in computer system can become increasingly fragmented, beaning that they are stored in discontinuous blocks over the file system.

Defragmenting is the process by which files are re-joined into continuous blocks.

Defragmentation tasks are usually  scheduled and managed by the operating system, but can be manually performed by the user.

Disk Cleanup

Disk cleanup refers to the process of removing redundant and useless files from computer storage to increase the free space capacity for new files.

Files are cleaned from the recycle bin and other temporary storage locations.

Windows operating system provides a utility that performs this task that is usually managed by the computer user.

Updates to this post

2024/1/9 – Added table of contents

© 2018  Vedesh Kungebeharry. All rights reserved

Definition: A file contains data of a specific type, which is denoted by a file extension.

E.g a picture file “image.jpg”

---

Definition: A folder  can store  many files and even other folders.

Definition: Sub-folders are folders within another folder.

Class demo: Use Mycomputer /windows explore/File Explorer to gain access to files and folders during this demo

1. Create a folder named School on the desktop
2. Rename the folder Naparima College
3. Create a new text document within Naparima college.
4. Open the document and save .LOG on the first line.
5. Save, close, then reopen the file and observe what happens.
   (explain the how students can use the readme or log files)
6. Create 3 subfolders for 3 subjects.
7. Demonstrate deletion of a folder using the recycle bin.
8. Restore file from recycle bin.
9. Demonstrate permanent file/folder deletion using:
   1. The recycle bin.
   2. The shift key.

Note that on windows computers, if you hold the shift key when deleting a file, it is permanently deleted, it is not sent to the recycle bin.

© 2018 Vedesh Kungebeharry. All rights reserved