introduction to ict, the internet & email...
TRANSCRIPT
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Basic Computer Course
Introduction to ICT, The Internet &
email service
Dr. Pa Pa Hlaing
Assistant Director
Depart of Technology Promotion and Coordination
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Introduction to ICT
Learning Objective
• Acquire introductory familiarity with
Information and Communication
Technology ( ICT ) and Computer System
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What is ICT?
ICT • Information and Communication Technology
• Technologies that provide access to information through
telecommunications
• New or modern technologies
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Information Technology
• Information Technology (IT) describes any
technology that helps to produce, manipulate, store,
communicate, and/or disseminate information
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Communication Technology
• Communications Technology refers to how computers, or
any machines, communicate with each other or with people
• the processes of transferring data from one machine to another,
using radio, telephone equipment, fax machines, video, email or
other means
• it helps people communicate more information to more people in
less time with greater accuracy and fewer misunderstanding
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Types of ICT
Traditional:-
• Printed media, books, newspaper, journals, TV, radio etc
Modern:-
• Computer, phones, internet, GPS etc
• Social Network
• Search Engine
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Objective and application
Objective:-
• Change the culture
• Improve confidence
• Promote new behaviors
Applications:-
• e-government, e-commerce, e-education, e-health, e-
environment
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Merits and demerits
Merits:-
• Access of learning resources
• Knowledge sharing
• Wide population cover
Demerits:-
• Cyber security
• Cyber bullying
• Costly infrastructure
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Impact of ICT
Impact of ICT:-
• Faster communication
• Faster information sharing
• Paperless environment
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What is a Computer?
Computer is an
• electronic data processing machine
that
• accepts data and instructions through input unit
and
• processes data and instruction into meaningful
information
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Computer System
• A computer has a monitor, a mouse, a keyboard and a
case that contains other important parts.
• These physical components are called hardware.
• Instructions which are given to hardware are called
software or programs. • These hardware and software together make a computer
system.
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Types of Computer
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Desktops
Laptops
Smart phones
Tablets
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• Data processing machine (Mathematical operations,
Comparison, Logical operations)
• Input-Output machine
• Hardware + Software
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Basic operations of computer system
Input Process Output
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Computer hardware
• The physical parts of computers are called hardware and
include elements both inside and outside of the computer.
• All these pieces get wired together on a motherboard
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Key elements of Hardware
• Central Processing Unit (CPU)
– The brain of a computer
– Determine how fast the computer can make calculations
– Units: * GHz( Giga=109 Hertz)
• Random Access Memory (RAM)
– important factor in a computer’s performance
– RAM stores memory while your computer is running
– When your computer is switched off the RAM is erased
– Unit: * B(Bytes)
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Check Basic information about your computer system.
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Hard Drive
• To save work we need another memory and this is called
the Hard Drive
– The Hard drive is the physical location on which your
computer’s information and data are stored.
– Contains electronic disks on which information is stored in
electronic form
– Unit: * B(Bytes)
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Ports and peripherals • Peripherals are the external hardware devices that get plugged into
your computer.
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Computer Components
Printer (output)
Monitor (output)
Speaker (output)
Scanner (input) Mouse
(input)
Keyboard (input)
System unit
(processor, memory…)
Storage devices
(CD-RW, Floppy, Hard disk, zip,…)
Camera (input) Stereo head
(input/output)
Web Camera (input)
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Software
Software is the entire set of programs and procedures
associated with a computer
Software comes in two forms:
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System software:
Operating Systems, Utility Programs
Applications software:
MS-word, PowerPoint, Mozila Firefox
Most operating systems and application programs have a graphical user interface (GUI)
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System Software
• Operating System, or “OS,” software, is what lets the
computer run by setting up the overall requirements in
which tasks can be performed.
– Mac OS for Apple
– Unix ,
– Linux
– Microsoft Windows
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Utility Software
• Utility software is system software designed to help to
analyze, configure, optimize or maintain a computer
– Anti-virus, Disk defragmentation, Compression, File managers,
Backup utilities
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Application Software
• Application Software allows you to do different
kinds of work.
– Word, Excel, PowerPoint, and Paint
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Computer as a Layered system
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Summary
• ICT
– IT
– CT
• Computer System
– Hardware
– Software
• System software
• Application software
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