2. INTRODUCTION OF I.T.
MANAGEMENT
Now-a-days, computers are the integral part of our lives.
Computers are used for the reservation of tickets for airplanes
and railways, payment of telephone and electricity bills,
deposits and withdrawal of
money from banks, processing for business
data, forecasting of weather conditions,
diagnosis of diseases, searching for inform-
ation on the internet, etc.
5. MANAGING HARDWARE AND
SOFTWARE
INTRODUCTION
What is Computer?
Types of Computer
Computer generations
Applications
Hardware and software
6. INTRODUCTION
Computer performs both simple and complex operations, it’s
speed and accuracy.
A computer is an electronic device that manipulates
information or data.
Computer has ability to store, retrieve and
process data.
A computer is a general purpose device
that can be programmed to carry out a
finite set of arithmetic or logical operations.
7. WHAT IS COMPUTER?
A computer is an advanced electronic device that programs
and gives output and saves output for the future use.
A computer can process both numerical and non-numerical
calculations.
A computer can work in three stages :-
Input (data)
Process
Output and storage
10. APPLICATIONS OF COMPUTER
Business
Insurance
Banking
Health Care
Communication
Education
Marketing
11. BLOCK DIAGRAM OF COMPUTER
Secondary
Storage
Primary
Storage
Control Unit
Arithmetical
and logical
Unit
Input Unit Output Unit
Storage Unit
Program
and Data
Information
(Result)
CPU
12. HARDWARE
The actual physical components that constitute a computer are
known as Computer Hardware.
In other words, anything in the computer that you can touch
and see is the hardware.
For example:- CPU, monitor, keyboard, IC,
resistors, etc.
13. TYPES OF HARDWARE
Input Devices
Keyboard, mouse, scanners, tight pen, etc.
Output Devices
Printer, monitor, etc.
Secondary storage devices
Hard disk, CD, DVD, floppy, etc.
Internal components
CPU, motherboard, RAM, etc.
14. SOFTWARE
The instructions given to a computer is called a program and
the set of instructions, programs in a logical sequence is called
as software.
Computer software has information that exists in two
basic forms :-
Non machine-executable components and
Machine-executable components,
15. TYPES OF SOFTWARE
There are two types of softwares :-
System Software
Operating system
Utilities
Device drivers
Language translators
Application Software
Word Processor
Spreadsheet
Presentation graphics
Database Management
Integrated Package
16. MANAGING DATA RESOURCES
Introduction
What is Data?
What is Data Processing?
What is Database?
17. INTRODUCTION
A group of symbol used to express a value of characteristic of
an object is called data.
A data which has been processed and organized so that it can
be used to draw meaningful conclusion is called information.
19. WHAT IS DATA PROCESSING?
Data Collection
Data Conversion
Data Written in
Documents
Data in Machine
Readable Form
Input Unit
Memory, CPU
Processed Data in
Internal Form
Output Unit
Data Transferred to a
Readable Form
20. WHAT IS DATABASE?
A database is a collection of related data elements such as,
tables, rows, columns.
A database turns disparate pieces of data into information.
Database languages :-
Data definition language
Data Dictionary
Data storage and definition language
Data manipulation language
Procedural DML
Non- Procedural DML
22. INTRODUCTION
Network means a collection of interconnected computer
network stand-alone computers.
Communication protocol define the rules and data formats for
exchanging information in a computer network, providing the
basis for network programming.
A computer network is interconnection of
various computer systems located at
different places.
23. IMPORTANCE OF NETWORKING
Responsiveness of customer or supplier.
Critical resources.
Satisfy an objective
Transmitting data
Positively impacted
24. TYPES OF COMPUTER NETWORK
Categories of network
Local Area Network
(LAN)
Wide Area Network
(WAN)
Metropolitan Area
Network (WAN)
25. NETWORK TOPOLOGY
In computer networking, topology refers to the layout of
connected devices.
Topologies can be Physical or Logical :-
There are 6 types of network layouts :-
Bus Topology
Star Topology
Mesh Topology
Ring Topology
Tree Topology
Hybrid Topology
33. ICT APPLICATIONS
ICT applications would include actions in the following sectors
:-
E-government
E-business
E-learning
E-health
E-employment
E-environment
E-agriculture
E-science
34. CONCLUSION
Management is about getting things done.
Nowadays I.T. is useful for our daily needs.
In information system development and implementation
projects, it is vital to take change into consideration.