IT Concepts, Telecommunication networks

1. ﷽
‫شروع‬
‫ہللا‬
‫تعالی‬
‫کے‬
‫نام‬
‫سے‬
‫جو‬
‫نہایت‬
‫مہربان‬
‫اور‬
‫رحم‬
‫کرنے‬
‫واال‬
‫ہے۔‬

2. ‫کیا‬
‫آج‬
‫آپ‬
‫نے‬
‫درود‬
‫پاک‬
‫پڑھا؟‬
‫ﷺ‬

3. COMPUTER
 Computer is an electronic Machin used to solve different problems according toa set of instructions
given to it.
 A computer can accept data, process data into useful information and store it for later use.
 The word comp is derived from compute that means to calculate. Computer can be used as a
calculating machine to produce results at a very high speed.
 Father of computer
 Charles Babbage is considered to be the father of modern digital computers.
 Difference Engine (in 1822)
 Analytical Engine (in 1842) 


4. INTRODUCTION OF IT CONCEPT
 INTRODUCTION OF COMPUTER SYSTEMS
A computer system is a combination of different components. The four components are following:
 Hardware
Hardware provides basic computing resources.it includes memory, CPU, storage devices, I/O devices etc.
 Operating System
Operating system controls and coordinates the use of hardware among various application program for users.
 Application Program
Application programs defines the ways in which system resources are used to solve computing problems. E.g word
processing, spreadsheet and database etc.
 Users
The users include people who interact and use the computers

5. EXPLORING COMPUTERS AND THEIR USES
CPU executes computer
instructions Output devices
make processed
data as
information
Memory holds data and
programs currently in use
Secondary storage devices
stores data and programs
Input devices
send data to CPU
Figure: Computer Environment
Input Processing Output

6. INTRODUCTION OF IT CONCEPTS
 DEFINITION OF IT
 IT stands for Information Technology.
 It is a technology that uses computing with high speed communication links to spread information from one
place to another.
 The communication links are also used to communicate with different people in the world.
 IMPORTANCE OF IT
 Global Village
 Role of IT in human life.
 Role of IT for medical cure
 Digital Convergence

7. IMPORTANCE OF IT
 GLOBAL VILLAGE
The world has become a global village due to IT. It means that people living in the world to know on another as if
if they are living in a village. It has become possible due to fast communication links. Information can be transfer
from one place to another place easily and quickly.
 ROLE OF IT IN HUMAN LIFE
IT place an important role in every filed of life. It can be used to improve the standers of life.
 ROLE OF IT FOR MEDICAL CURE
Information Technology can be used for solving different problems. E.g if a person has the latest information
about the medical field. He can use this info to cure different disease.
 DIGITAL CONVERGENCE
IT has enabled different types institutions and organization to be a part of digital convergence. The digital
convergence means that various industries have merged electronically to exchange information.

8. INFORMATION PROCESSING CYCLE
A series of steps used to convert data into useful information is known as information processing cycle. The
steps in this cycle are performed in a specific sequence.
 INPUT
The first step of the Information Processing Cycle is input. The comp accepts data in this step. Data
consists of raw facts and figures. Data is entered into the computer for processing by different input
devices such as keyboard, mouse.
 PROCESSING
The second step of the Information Processing Cycle is processing.it converts data into information.
Information is an organized and processed form of data. The CPU process data into info. RAM is
temporarily stores programs and data required by the CUP.

9. INFORMATION PROCESSING CYCLE
 OUTPUT
The third step of the Information Processing Cycle is output. The results are provided to the users in
this step. It is performed using different output devices such as Monitors and printers.
 STORAGE
The fourth step of the Information Processing Cycle is storagr.it stores data, information and
programs used by the computer system. It is performed using different devices like hard disk drives ,
optical disk and USB flash memory etc.
INPUT PROCESSING OUTPUT STORAGE

10. USES OF COMPUTER
Use of computer in different field is given below
 Uses of Computer at Home
 Uses of Computer in Education
 Uses of Computer in Business
 Uses of Computer in Manufacturing
 Uses of Computer in Medical Field
 Use of Computer in Airline System
 Use of Computer in Weather Forecasting
 Use of Computers in Library
 Use of Computers in Defense
 Use of Computers in Media and Entertainment

11. THANK YOU
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