Nowadays internet is increasing day by day. today i will talk about internet and world wide web.
1- Difference between internet and WWW:

2- Major networking and computing technologies introduction:

3- Internet past, present and future:

4- Web base computing:
Web current computing model include service side computing ( CGI) and client side computing.
there are limited computing models.
Were initially designed for processing fill-out form.

5- Computing using CGI:

6- Web based systems:
Compute server with

Dynamic Class Loader

Security Manager

Client (applet, CGI script, stand-alone)

Logging facilities

Searching for compute resources

Broker

HOW INTERNET INFRASTRUCTURE WORKS?

How an email message may travel from a sender to reciever?

WEB 2.0

1- Elements of web 2.0

2- Categories of web 2.0: consist of social network, mashups and aggregators.

social network

aggregators:

mashups is a web site that takes different content from a number of other web sites and mixes them together to create a new kind of content.

Compare between web 1.0 and wed 2.0

WEB 3.0

Web 3.0 is about semantic web (or the meaning of data), personalization (e.g. iGoogle), intelligent search and behavioral advertising among other things .

 Web 3.0 is based on intelligent web applications using:

- Natural language processing

 Machine-based learning and reasoning

 Intelligent applications

This week I have learnt about web application. There are so may type of web

1-      Web application is a piece of software. It can run on the internet or computer or whatever electronic devices.

      Web browser   are software applications that allow users to retrieve data and interact with content located on web pages within a website

3-      Web pages are web document or we could call it HTML. There are two type of web pages: static web ( web 1.0) and dynamic web ( web 2.0)

a- Static web ( web 1.0) is a web page which can read only. This web allows the people search information and read it. The customer can’t allow to contribute this web.

b- Dynamic web (web 2.0) is dynamic interactive web site. It interaction between people, software , data and describe a typically combination of technology allowing user to interact with information.

Example of social site

 

4- Web site:

- A collection of related web pages found at a single address AND

- Web site  has unique address (URL) example: www.vietnamwork.com

Web 2.0 application: Google docs, Gmail, Web Conferencing videoconferencing: Webex, GoToMeeting blogging, MP3tunes, Jinzora. Social cataloging (Zotero)

Learning management systems / e-learning

LearnHub

Edu20.org

-  Web Information System (WIS)

use web  as part of communication and paltform

Disseminate information (static or dynamic)

Share information

Conduct transactional business (B2C, C2C, B2B…)

1. DEFINITION:

ISD methodologies is a collection of procedures, techniques, tools and documentation aids which will help the systems developers in their efforts to implement a new information system.

There are many different methodologies used in systems development

A methodology is a collection of:

Procedures

Tools                                                     which will help the systems developers to implement a new information system

Documentation aids

2. PARTICIPANT IN SYSTEMS DEVELOPMENT:

- Project manager.

- Stakeholders ( anyone who involve environment).

- Users.

- System analyst (facilitytater).

- Programmers ( design the program).

- Support personnel.

3. STEPS IN ISD PLANNING:

strategic plans --> develop objective --> identify IS project -->  analyze resources --> set schedule and deadlines --> develop IS

4. TYPES OF ISD METHODHOLOGIES:

a) Game and Sarsors (Stradis)

b) Stages

initial study ( identify the system) -> detail ( get the data from ISD and dentify the data)-> designing alternatives -> physical design ( jobs of programmer to design the systems)

c) Information Engieneer (IE)

d) Prototyping

Determine requirement -> analyze alternative -> specify design->implement design -> user review-> 

e) Structured approach (SDLC)

System investgation -> system analysis -> system design -> system implementation -. system Mainternance and review.

What are IS do?

IS exchange information.

IS easy to control information.

IS improve the product activity.

Function of CBIS:  - Support business operation, processing.

-          Support business decision making.

-          Support competitive advantage.

Type of IS

There are many types of IS. However, IS have 4 main types.

-          Transaction processing system (TPS).

-          Management information system (MIS).

-          Decision support system (DSS).

-          Execute support system (ESS)

-          Expert support system (ES).

-          Other is office support system, knowledge work system,..

Flow of information between MGT levels.

TRANSACTION PROCESSING SYSTEM (TPS)

1.       TPS is CB information system, that capture and process data, recording a business activity.

TPS is the first level of IS.

2.       Features of TPS:

TPS is the input pf business processing. One TPS for each department.

TPS used by operational personnel and supervisory level.

TPS are monitor, collect, store and process data generated fron business transaction.

TPS is the backbone of an organization.

3.       Component of TPS:

ü  People:  user of information system is the person belonging the organasation that owns the transaction.

               Participant are the people who conduct the information processing as they directly enter.

ü  Hardware.

ü  Software
4.  Transaction processing system function:

MANAGEMENT INFORMATION SYSTEM ( MIS)

1     MIS  is an intergrated collection of people, procudures, database and devices that provides managers and decision makers with information to help achieve organizational goals.

             MIS is collection of reports.

2.       Function of MIS:

Ø  To help organization achieve goals.

Ø  Provide right information to the right people at the right time and format.

Input of MIS is TPS ( data and information)

Output of MIS is reports include summary reports, demand reports, period reports.

3.       Features of MIS:

MIS used by middle managerial levels ( manager in department or super organizer.

MIS use internal data stored in computer systems

MIS produce several kinds of reports with fixed and standard formats.

MIS make/ support programmed ( structured) decision.
4. Scenario of MIS

DECISION SUPPORT SYSTEM ( DSS )

1.       DSS is An organized collection of people, procedures, software, database and devices used to support problem – specific decision making.

2.       Features of DSS

Input include internal ( from TPS) and external ( from costumer,..) used to support unstructured problem.

Maily for tactical managers.

Consist of 4 part: user, software, data and decision model ( operation, technical, data model).

EXECUTED SUPPORT SYSTEM (ESS)

1.       ESS designed to support higher level of DM in organization. They help executives and senior managers analyse the environment in which the organization operates, to identify long-term trends, and to plan appropriate courses of action and present summary information designed for top executives.

2.       Characterist of EIS

-          TPS + MIS + DSS

-          Gaindirect access information about company.

-          Used only at the most senior management levels.

-          Use internak and external data sources.

EXPERT SUPPORT SYSTEM (ES)

1.       OVERVIEW:

2.       CHARACTERIST OF ES:

OTHER INFORMATION SYSTEM

Information systems ia a application of computer based IT combination of hardware software, infrastruture and trained personnel used to facilitate, planning, control, coordination, and decision making in an organization.
component of CBis: people, telecommunication, software, hardware, datbase and procedures.
Component of is hardware:
conclude computer equipment.
software: computer program that govern the operation of the computer.
finance software: process payroll, send bills to customers, provide managers with information to increase profit.
Database: is an organized collection of interrelated data.
people: who manage, run, program, maintain  the  systems.
Procedures:

A- INFORMATION TECHNOLOGY
What is IT?
IT is a term that refer to all torms of technology used to create, store, exchange and use information.
IT concept: it consist of IT architecture and IT infrastruture.
IT architecture is a map or plan of the information assets in an organisation. it plan and describe the systems in an organisation.
IT infrastruture conclude IT component, IT service and IT personnel that support an entire organisation.
IT component computer, hardware, software communication technology
IT personnel: the people who work with IT@IS.
B- INFORMATION AND COMMUNICATION TECHNOLOGY.
What is ICT?
ICT is refer to information communication and technology. it manage information and can use that information.
ICT is similar to IT. but its focus on communication technology more than IT. It includes Internet, networks, cellphone and other communication mediums.

IT          +         MEDIA BROADCASTING        =   ICT

 The uses of ICT in education 

• E-learning
• equip computer Lab and classroom with computer.
• tool: projector or smartboard.

the uses of ict in banking:



 ICT in business can be used to communicate

• Between individuals
• Between custumer and organisation
• Between a business and an external organisation.





1. What is a computer?

A computer is a program machine that carried out what it has been instuctured to do.

     2. Generation of computer:

a). Pre computer and early computer ( before 1940s): Abucus

ENIAC

a). The first generation (1940 - 1950): Vacuum Tube


• first electric computer used vacuum tube, they was huge and complex. The first general purpose computer was the ENIAC  (Electronic Numerical Integrator And Computer) in 1945. It took up 167 square meters, weighed 27 tons, and consuming 150 kilowatts of power. it used by US Army to calculate and Design Hydrogen.

• The other similar with this computer  of this era included german Z3, ten British Colossus computers, LEO, Harvard Mark I, and UNIVAC. UNIVAC used in 1950.

b). The second generation (1950 - 1964): Transistors.

• The vacuum tubes have been placed by transistors. Most the computer used IBM 1401
• This is a computer that has high level language such as COBOL, FORTRAN.

c). The third generation (1964 - 1974): Integrated circuit (IC)
combine thousands of transitor, entire circur on one computer.
d). The fourth generation (1974 - present): VLSI/ ULSI
e). The fifth generation ( now and future): 
Base on artificial intelligence.

  3. Categories of computer: depend on size, capa,..

• embedded computer: mini computer into a specific product for a specific purpose such as DVD, washing machine,...
• Mobile computer:
• Pesonal computer: is a copmuter using for a single user at a time.
• Midrange:
• Mainframe:  is expensive, very powerful computer that can handle hundreds or thousand of connected users simultaneously.

Ex: use for company to control all computer in that company.

• super computer: the fastest, most powerful, most expensive computer. Use for complex computation and processing.

Information management is a general terms that refers to managing any kind of information.
IM is the collection and then manage that all of information.
We have many terms of information such as:

• Web content management (CM)
• Document management (DM)
• Records management  (RM)
• Digital asset management (DAM)
• Learning management system (LM)
• Learning content management system (LCM)

However, IM can encompasses to technology, process, content and people
This week, in my class had to divide into group to present about problem with IM and their solution.
So, i will show to everyone see our project.

I- DATA AND INFORMATION.
1- Definition of data and information
Data is a raw facts. Data can be used in the form of number, characters, symbols, picture or sounds.
Information is data that is organized and meaningful. It's used for making decision.
Data is used as input for processing and information is used as output of the processing.
Ex: Data: words, images, numbers.
      Information: purpose, meaning process.
2- Data integrity.
Garbage in, garbage out ( GIGO) computer phrase that means you can't create correct information for incorrect data.

3- Quality of valuable information.

4- Role of information.
Information is used in decision making, to influence and persuade.
Information can be a capital resource, especially for companies that produce information-based products and services.
II- THE ECONOMIC OF INFORMATION AND IT
1- The economic of information and IT.
information has two basic elements.
Reach means the number of people.
Richness means amount of quality  information share in transaction. It has three component: bandwith, customization and interactivity.
How do computer represent data? A bit is the most basic unit of information in a computer. they are 0 and 

2- Computer operations.
A computer converts data ( from input ) to become information ( as output).
Basic operation that a computer can perform are input, processing, output, storage and communication.
3- Explain the economic of information

Now, no such tradeoff is required. Everyone is able to have incredibly rich communication with everyone else BECAUSE  of

  - Connectivity: the Internet,

   - Standards: Web standards, Internet standards, Application Standards, Database  standards, etc. 
4- What is input?
is any data and instructions entered into the memory of a computer – can be in the form of programs or commands, and user responses
5- What is output?
Output is an data that has been processed into a useful form.
Output device is any kind of hardware component that conveys information to one or more people.