List the name of computer components

Bangladesh Open University
Chittagong Campus
Assignment on Operation Research
Submitted TO:
Dr. Md. Monirul Islam
Professor
Department of CSE
Tutorial Center(IIUC), Chittagong.
Submitted By
Student Name: Rahamat Ullah
Subject Name: Office Automation
Student ID: -1-50-890-016
Semester: 1st Semester
Submitted Date: 27-10-2017

INTRODUCTION OF
INFORMATION
TECHNOLOGY

What is Information.
Information is the data processed for some purpose.
Information can only be considered to be real info if it
meets certain criteria i.e.
1.It must be communicated to the recipient
2.It must be in a language that is understood
3.It must be in a suitable form
4. It must be relevant for achieving some purpose

Information
“ Is any form of communication that
provides understandable and useful
knowledge for the person receiving it.”

Technology
The branch of knowledge that deals with the
creation and use of technical means and their
interrelation with life, society, and the
environment, drawing upon such subjects as
industrial arts, engineering, applied science,
and pure science.

Information Technology
“Information technology is a general term that
describes any technology that helps to produce
manipulate, store ,communication information.”
"It merges computing with high speed
communications links carrying data sound and
video."
Examples
-Telephone
-Television
-Appliances
-Various household devices

Two different parts of information Technology
-Computer Technology:
"Programmable ,multiuse machine that
accepts data-raw facts and figures and
processes or manipulates it into information
we can use ."
-Communication Technology
"Also called telecommunications technology
consist of electromagnetic devices and systems
for communication over long distances."

Benefits of Information Technology
-In communication
-Increase Social Relationship
-In Education
-In Purchasing
-In Agriculture
- In Banking
- In Transportation

Computer is an important
component of Information
Technology

Definition of Computer
"A programmable electronic device
designed to accept data, perform
prescribed mathematical and logical
operations at high speed, and display
the results of these operations."

CATEGORIES OF COMPUTER
Computers are divided into five different
categories.
Super Computers
High capacity machines with thousands of
processors that can perform more than several
trillion calculations per year.

Main Frames
Water or air cooled computers more expensive and
vary in size from small to medium to large
depending on their use.

Work Station
Expensive powerful personal computers
usually used for complex scientific
mathematical and engineering calculations.
Micro Computer
Also called personal computers can fit next
to desk.
Micro Controllers
Also called embedded computers are the
tiny specialize microprocessors installed in
smart appliances

Types of Computers
There are two types of computers
- Analog Computers
- Digital Computers

Analog Computers
-It recognize data as continuous
measurement of a physical property
-Its output is usually displayed on a
meter or graphs
-Examples are Analog clock, speed of a
car thermometer etc.

Digital Computers
-It works with numbers
-They breaks all types of information
into tiny units and use numbers to
represent those pieces of information
-Every thing is described in two states
either "on "or "off ".
-They are fast and have big memory

Purpose of Computer
#The purpose of a computer is to process
data into information
-Data consists of the raw facts and figures that are
processed into information.
-Information is data that has been summarized or
other wise manipulated for use in decision making
#

Basic Operations of Computers
- Input Operation
- Processing operation
- Storage operation
- Output operation
- Communications operation

Hardware and software:
-Hardware consists of all the machinery
and equipment in a computer system
-Software or programs consists of all the
electronic
instructions that tell the computer how to
preform a task

Devices of a Computer
mputer.
r
Input devices
An input device is a hardware device
used to send data to a co
Examples
- Key Board
- Mouse
- Game controlle
- Digital Camera
- Scanner

Processing and Memory
Hardware
-System Case and Power Supply
-Processer chip for Central
Processing Unit(CPU)
-Memory chip also known as RAM
used for primary or temporary
storage.

Motherboard
Main circuit board in the computer

Storage Devices
-Hard disk
Can stores billions of characters of data.
-CD(Compact Disk)DVD(Digital video Disk)
-Pen Drive
Use laser technology to read data

Output Device
An output device is any device used to
send data from a computer to another
device or user.
Examples
- Monitor
- Printer
- Speakers
- Projector
- Head phone

Soft Ware
Soft ware are of two types:
System Software
Help to perform essential operating task
Application Software
Help to perform specific task

Uses or benefits of Computer
> In Science
> In Business
> In Education
> In Defense
> In sports
> In research
> In Govt. Etc.

Management
 Word “Management” identifies special group
of people whose job is to direct the effort and
activities of other people towards common
objectives.
 Managements the process of coordination
work activities so that they are completed
efficiently and effectively with and through
other people.
coordinating controllingPlanning Organizing Directing

Information
“ Is any form of
communication that provides
understandable and useful
knowledge for the person
receiving it.”
Appropriate Date Accurate information Relevant decision

System
A system is a group of interrelated
components working together toward a
common goal by accepting inputs and
producing output in an organized
transformation process.
Input Process Output

List the name of computer components

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