lesson 1 information technology and win-xp by nguyễn thanh tùng email: tungnt@isvnu.vn web:...

Lesson 1

INFORMATION TECHNOLOGY AND WIN-XP

by Nguyễn Thanh TùngEmail: tungnt@isvnu.vn

Web: http://khoaquocte.vn/Article/Index/405

OBJECTIVES

Understand the basic concepts: information technology (IT), information system (IS)

Understand the basic components of the IS Human Software Procedures Hardware Data Information

Basic about Window XP Internet and services on Internet

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IT CONCEPTS

Information systems (IS) are network of computer used to store / process and transmit information

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Information technology (IT) is the area of technology including computer software, information systems, computer hardware, programming languages.

IS COMPONENTS

HumanProceduresHardware

Software Data Connections

(e.g. network)

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HUMAN

To use / develop information systemsUsers and developersFor examples:

Person sell / buy using Internet Administrators work database to store and retrieve information Students use of online learning systems

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SOFTWARE

A set of instructions for the computer to complete a computer task

e.g. staff makes a document to boss, or designs graphic

A software = a program Software includes:

System software Application software

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SYSTEM SOFTWARE

Is a collection of "background" programs: Not used directly by users Allow users and application software interact with

hardware Allocate computer resources to applications Often run automatically at startup of a computer

For example: Operating system (OS) Device drivers

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APPLICATION SOFTWARE

Programs that help end users to perform one or more specific tasks

There are two types:Basic software applications: word processing, spreadsheet, database, ...      For example, MS Word, Excel, Access

Specialized software applications: graphics, audio, sound, web design, ...      For example: Photoshop, Media player, Dreamweaver,

Visual Studio

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PROCEDURE

A set of guidelines and rules that people must follow when using the information system

Usually like documents (comes with hardware and software, respectively)

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HARDWARE

All the physical components of the computer such as mouse, keyboard, monitor, CPU, ... etc.

Is divided into three types: Device I / O Secondary memory Connection device

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MOTHERBOARD

Is the "brain" of the computer Contains the most important 2 components:

Processor (CPU) Memory

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INPUT AND OUTPUT

Input Mouse Keyboard Scanner Microphone

Output Printer Speaker …

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SECONDARY MEMORY

Is a data storage device is not connected directly to the processor but by external cable to read / write data

Store data even when power is turned off

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CONNECTION DEVICES

Device to connect to Internet or between computers

For example: modem,

USB, Router, Switches …

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DATA AND INFORMATION

Data Is a collection of raw

data Just numbers and letters

Information Is collection of

processed data Usually with a context

Information System

Information System

CuộiToán 10Văn 7Lý 10Hóa 1

CuộiToán 10Văn 7Lý 10Hóa 1

Điểm trung bình của Cuội: 7Điểm trung bình của Cuội: 7

Data

Information

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INTERNET AND CONNECTIONS

Types of connections: Wire: coaxial, Optic fibre

… v.v Wireless: wifi, bluetooth,

… v.v

Internet Global computer

networks

Connections Between different computers on the same IS Between different IS

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Operating system (OS)

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OS roles

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Basic action

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MAIN SCREEN

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Stop/logout

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Storage

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Path\tree diagram

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How to check your computer RAM size?How many logical Disks in your PC and

what the size?How to change the time and date in your

PC?

EXERCISE 1

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Using Windows Explorer to create a directory tree as follow:

EXERCISE 2

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Open a program

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Window explorer

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Window explorer

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Session 2

INTERNET AND SERVICES

by Nguyễn Thanh TùngEmail: tungnt@isvnu.vn

Web: http://khoaquocte.vn/Article/Index/405

OBJECTIVES

Understand Internet, Web Concepts Web browser Internet services

Search Email Social network Blog Wiki Chat

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OBJECTIVES

E-commerce model: B2C C2C B2B

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INTERNET

The global computer network Was first run in 1969 in the U.S., under the name

ARPANET

Number of users: 1966 mils ( in 6/2010, by

Internetworldstats)

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INTERNET– STATISTICS

The number of Internet usersin 2009

The number of Internet users in Asia

in 2009

Users in countries in Asia in 2009

(Copyrightwww.Internetworldstats.com)

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INTERNET CONNECTION

Internet Service Providers (ISP) is commercial company providing Internet connection to personal and organization

ISP in Việt Nam: FPT Telecom VDC Vietel Telecom

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WORLD WIDE WEB (WWW)

Protocol provides access to hypertext (http) documents on the Internet

Invented by Tim Berners-Lee in CERN 1991

Is the most important service for booming of Internet and Information technology

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WEB BROWSER

Software that implements WWW Allows users to access Web Operate by translating HTML into a Web page (Text, visual, audio) Popular web browser:

Internet Explorer Mozilla Firefox Apple Safari Google Chrome

To surf web, users need to enter URL of Web on the browser.

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URL- UNIFORM RESOURCE LOCATOR

Standard form for Web address Example: http://www.khoaquocte.edu.vn/ Include 2 components:

Protocol: http, ftp, … Domain name

http://www.khoaquocte.edu.vn/

Domain nameProtocol

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INTERNET SERVICES

• Search

• Email

• Social network

• Blog

• Wiki

• Chat

• E-commerce

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INTERNET SEARCH ENGINE

Website helps you locate information on the Internet by showing you the site that contains that information

Based on keyword search)

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INTERNET SEARCH ENGINE

Popular tools: Google (www.google.com) Bing (www.bing.com) Yahoo search (http://search.yahoo.com/)

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EMAIL SERVICE

Is a service that allows users to send and receive mail (electronic form) through the network

Each user has a mailbox Each mailbox will correspond to a single address

caodang@vnu.edu.vn

Account Domain name

Free email service: Google mail, Yahoo mail …

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EMAIL COMPONENTS

Header Address

(to/cc/bcc) Subject Attachment

Content (message) Signature

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SOCIAL NETWORK

Internet services connect users to share information The highest number of users today

Forexample Facebook, … Zing Me, …

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BLOG

Blogs are web services that allow users to reflect, share ideas on a common topic

Like an online journal by posting and writing comment Person write blog is called blogger Example:

Opera, Twitter

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WIKI

Wikipedia is largest knowledge website at present, supports most common languages (including Vietnamese)

Website allows users to modify the article content Wikipedia Vietnam: http://vi.wikipedia.org/wiki Companies, businesses, schools often maintain internal

wiki system

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E-COMMERCE

Is a term showing sell or buy by Internet The website allows users to purchase is known as e-

commerce sites Professional website:

Ebay Amazon …

Basic e-commerce model: B2C : Business to consumer C2C : Consumer to consumer B2B : Business to business

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B2C- BUSINESS TO CONSUMER

Model for electronic commerce between businesses and consumers

Each company will maintain websites containing information on goods and consumers can buy / make a purchase directly from this website

E.g.: Amazon.com Drugstore.com Beyond.com

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C2C – CONSUMER TO CONSUMER

E-commerce model to support the sale between individuals

For example: Raovat.vn Vatgia.com/raovat Raovat123.com

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B2B – BUSINESS TO BUSINESS

Model of electronic commerce between businesses together

For example: Dell provides computer and services for more than 100.000 organizations (theo wikipedia)

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SUMMARY

Internet and Web Internet services E-commerce and models

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