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UNIT
3 ICT Skills-II
Topics Covered 95%
Computer System Introduction Operating System
Windows 10 Operating System What is a File?
What is a Folder? Creating and Managing Files and Folders
Computer Care and Maintenance Cleaning Computer Components
Preparing Maintenance Schedule Creating a Backup of Your Data
Increasing Computer Performance Removing Spam Email from Your Computer
Protecting Computer against Viruses Protecting Your Data
What are Temporary Files?
ICT stands for Information and Communication Technology. It is a set of digital technology including computers
hardware, software and networking for storing, managing and communicating the information.
ICT skills are the ability to access software programs and manage the basic functions of a computer in an effective way.
It helps you communicate with the people around you in your personal and professional life.
COMPUTER SYSTEM INTRODUCTION
A computer is an electronic device designed to take input from the user, process it and then return the desired output.
A computer system is a combination of hardware and software components that help in doing the required task.
The physical components of the computer which you can touch and feel are called hardware. Examples are mouse,
keyboard, monitor, printer, etc.
Set of instructions given to the computer to perform specific tasks is called software. Computer is of no use without
software. There are three types of software : system software, application software and utility software. Let us learn
about them.
System Software
System software is a software which is compulsory for the computer. Without a system software computer is just a
dummy without any use.
It is always running in the background of your device and helping the user to smoothly use the computer system. For
example: Operating systems like Windows, Mac OS, DOS, etc.
Application Software
Application software is a set of programs that helps the programmers to perform a specific task. It can be installed
on a computer or mobile device depending on the need of the user. For example: MS word deals with documents,
Spreadsheets with calculation, Presentation software for creating and running presentations.
66 Trackpad Information Technology-X

