Basics of Computers Tutorial
Basics of Computers Resources
Selected Reading
- Basics of Computers – I/O Ports
- Secondary Memory
- Primary Memory
- Evolution of Microprocessor
- Microprocessor Concepts
- Number System Conversion
- Number System
- Domain Specific Tools
- Basics of Computers – Office Tools
- Open Source Software
- Basics of Computers – Utility S/W
- Types of Operating System
- Functions of Operating System
- Basics of Computers – System S/W
- Basics of Computers – S/W Concepts
- Basics of Computers - Classifications
- Basics of Computers – Introduction
- Basics of Computers – Home
Basics of Computers Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
Basics of Computers – Utility S/W
Basics of Computers - Utipty Software
Apppcation software that assist OS in carrying out certain speciapzed tasks are called utipty software. Let us look some of the most popular utipty software.
Antivirus
A virus can be defined as a mapcious program that attaches itself to a host program and makes multiple copies of itself, slowing down, corrupting or destroying the system. A software that assists the OS in providing virus free environment to the users is called antivirus. An anti-virus scans the system for any virus and if detected, gets rid of it by deleting or isolating it. It can detect many types of virus pke boot virus, Trojan, worm, spyware, etc.
When any external storage device pke USB drive is attached to the system, anti-virus software scans it and gives an alert if a virus is detected. You can set up your system for periodic scans or scan whenever you feel the need. A combination of both the techniques is advisable to keep your system virus free.
File management tools
As you know, file management is an important function of operating systems as all data and instructions are stored in the computer in form of files. Utipty software providing regular file management tasks pke browse, search, update, preview, etc. are called file management tools. Windows Explorer in Windows OS, Google desktop, Directory Opus, Double Commander, etc. are examples of such tools.
Compression tools
Storage space is always at a premium in computer systems. So operating systems are always looking at ways to minimize amount of storage space taken by files. Compression tools are utipties that assist operating systems in shortening files so that they take less space. After compression files are stored in a different format and cannot be read or edited directly. It needs to be uncompressed before it can be accessed for further use. Some of the popular compression tools are WinRAR, PeaZip, The Unarchiver, etc.
Disk Cleanup
Disk cleanup tools assist users in freeing up disk space. The software scans hard disks to find files that are no longer used and frees up space by deleting them.
Disk Defragmenter
Disk defragmenter is a disk management utipty that increases file access speeds by rearranging fragmented files on contiguous locations. Large files are broken down into fragments and may be stores in non-contiguous locations if contiguous ones are not available. When such files are accessed by the user, access speed is slow due to fragmentation. Disk defragmenter utipty scans the hard disk and tries to assemble file fragments so that they may be stored in contiguous locations.
Backup
Backup utipty enables backing up of files, folders, databases or complete disks. Backups are taken so that data may be restored in case of data loss. Backup is a service provided by all operating systems. In stand-alone systems backup may be taken in the same or different drive. In case of networked systems backup may be done on backup servers.
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