Adwin's CA Life

Chapter 3

Chapter 3 : Software for systems
Application Software - Program that designed to make users more productive

To make business activities more efficient
To assist with graphics or multimedia projects
To support home , personal , and educational tasks
To facilitate communications

Application software in variety forms :

Packaged software
custom software
Web application
Open source software
shareware
Freeware
Public-domain software

Business Software

Business software is a application software that assists people while doing business activities .

For example ,

Word Processing -allow users to create and manipulate documents

Spreadsheet - allows users to organise data in a rows or columns and perform calculation

Database - collection of data organised in a manner that allows access, retrieval , and use of that data

Presentation - allows users to create visual aids for presentation to communicate ideas , messages , and other information to a group

Note taking - enables users to enter typed text , handwritten , comments , drawings ,or sketches on a page

Personal information manager - is a application software that include appointment calendar , address book , Notepad

Project management - allows user to plan schedule , track , and analyze the events , resources , and costs of a project

Accounting - helps companies record their financial transactions

Document management - provides a means for sharing , distributing and searching through documents by converting them into a format that can viewed by other users

Enterprise computing software - special computing solutions for various functional units

Graphics and multimedia software

Computer-aided design software (CAD)
Desktop publishing software
Paint/image editing software
Profesional photo editing software
Multimedia authoring software

Software for home , personal , educational use

Personal finance software
legal software
tax preparation software
Personal DTP software
Personal Paint/ image editing software
personal photo editing software
Clipart
Video and audio editing software
Home design software
Travel and mapping software
Reference software
Educational software
entertainment software

Web application

- websites that allows users to access and interact with software from any computer or device that is connected to internet

Application software for communications

web browser
E-mail
Instant Messaging
Chat room
Text , picture , video messaging
RSS Aggregator
Blogging
Newsgroup
FTP
VoIP
Video conferencing

Learning tools for applications software

Online Help - is a electronic equivalent of a user manual

Web-based training - is a type of CBT that uses Internet technology and consists of application software on the web

Distance learning - Delivery of education at one location while learning takes place at other locations .

Computer application Chapter 2

Chapter 2 : Fundamentals of the world wide web and internet
Internet is a worldwide collection of network that links millions of business , government agencies , educational institutions , and individuals

Evolution of internet
1969 ARPANET becomes functional (Internet originated as ARPANET)
1984 ARPANET has more than 1000 computer links to host
1986 NSF Connects to ARPANET and becomes internet
1995 NSF net terminates its network on the internet and resumes status as research network
1996 internet2 founded
Now more than 550 million hosts connect to the internet

Many house users connect to the internet by using high speed broadband internet .For example , Cable Internet service , DSL , Fiber to the premises FTTP, Fixed wireless , Cellular Radio Network , Wifi, Satellite Inter Service

IP address - number that uniquely identifies each computer or devices that connected to the internet

Domain name - text for your IP address

DNS Servers - Translates domain name into its IP address

The World Wide Net
World wide net consists of worldwide collection of web pages

Web sites is a collection of related web pages and associated items

Web servers is a computer that delivers request web pages to your computer

Web 2.0 is a websites that provides a means for users to interacts

There are many browser such as Internet explorer , Firefox , Opera , Safari , Google Chrome . Browser allow user to access web pages or web 2.0 program

Home pages is the first things that displays in web sites .Web pages provide other links to other web pages ,in other words is surfing the web. Process of receiving information from web pages is called Downloading .

A web pages has a unique address called a URL or Web address

There are 13 type of Web sites : Portal , News , Informational , Business/Marketing , Blog , Wiki , Online Social Network , Educational , Entertainment , Advocacy , Web application , Content Aggregator , Personal .

E-Commerce
E-commerce is a business transaction that occurs over an electronic network .

Other internet services
E-mail is a transmission of messages and files via a computer network. E-mail program allows to create , send , receive , forward , store , print , and delete e-mail messages

Instant messaging (IM) is a real time internet communications service

A Chat is a real time typed conversation that takes place on a computer

VoIP(Voice over IP) allow users to speak to other user over internet

FTP(File Transfer Protocol) is an internet standard that permits file uploading and downloading with other computers on the internet

Computer Application Chapter 1

Actually we need to create blog at the first class , to share what we learned in the class . Since i create this blog by today , So .... i gonna summarise all the things that i learned about Computer Application . Our final exam is around the corner , so i take this as a revision though .....

Computer Applications Chapter 1
Actually i started my class when the lecturer teaching chapter 6 if no mistake . So chapter 1 until chapter 5 i just figure it myself with note and my friend .Luckily these few chapter is easy if not i kinda stress right now .

Chapter 1 : Basic introduction to Computers
In this chapter we learn about Computer ......

What is computer ?
Computer is an electronic device, that operating under the control of instruction stored in its own memory.

Components of a computer
Hardware - electric , electronic , mechanical components thats contains in a computer

Input device - allow to enter data and instructions to computer

Output device - hardware component that conveys information to one or more people

system unit - used to process data

Storage device - writes or reads items to and from storage media

Communications device - Enables a computer to send or receive data , instructions ,and information to and from one or more computers or mobile devices

Advantages and Disadvantages of using computer.
Advantages - Speed Disadvantages - Health risks
- Reliability - Violation of privacy
- Consistency - Public safety
- Storage - Impact on labor force
- Communications - Impact on environment

Green Computing
-reducing the electricity consumed and environmental waste generated when using a computer.

Network and Internet
A network is computer and devices connected together usually wireless ,for example communications devices and transmission devices .

Internet is a worldwide collection of network that many businesses, government agencies ,educational institutions ,and individuals .

Software
Software/program - allow to tell the computer what to do and how to do .

how we put the software into computer?
Installing - process of setting up software into computer and other hardware .

Categories of Computers

Personal Computer
A personal computer can perform all of its input , processing, output , and storage activities itself

Desktop Computer