Five Parts of an Information System
Chapter 1
Outlook
1. Explain the five parts of an information system,
2. Distinguish application software from system software,
3. Distinguish four types of computers,
4. Explain computer connectivity.
1.1 Introduction:
People who use microcomputers are called “end users”. Today:
• Microcomputers are common tools in all areas of life. Writers write, artists draw, engineers and scientists calculate – all on microcomputers. • With the aid of computers, new forms of learning have developed – now distant learning is possible. • New ways to communicate, to find people with similar interests, and to buy goods are available. All kinds of people are using electronic mail, electronic commerce, and the internet to meet and to share ideas and products.
1.2 Information Systems:
A microcomputer is not just an equipment, i.e. not just a monitor and a keyword. Actually it is part of an information system.
An information system has five parts: i. People: Microcomputers make people like us, end users, therefore more productive
ii. Procedures: are rules or guidelines for people to follow when using software, hardware, and data. e.g. User manuals written by specialists.
iii. Software: Software is another name for a program or programs. A program is the step-by-step instructions that tell the computers how to do its job. The purpose of software is to convert data (unprocessed facts) into information (processed facts). It is the software that processes the data to create information.
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iv. Hardware: It is the collection of equipment, e.g. keyboard, mouse, monitor, system unit, and other devices. Hardware is controlled by software.
v. Data: Data consists of the raw, unprocessed facts, including text, numbers, images, and sounds, e.g. your quiz, midterm and final marks are raw facts. After data is processed through the computer it becomes information that is your final grade.
To be competent
Outlook
1. Explain the five parts of an information system,
2. Distinguish application software from system software,
3. Distinguish four types of computers,
4. Explain computer connectivity.
1.1 Introduction:
People who use microcomputers are called “end users”. Today:
• Microcomputers are common tools in all areas of life. Writers write, artists draw, engineers and scientists calculate – all on microcomputers. • With the aid of computers, new forms of learning have developed – now distant learning is possible. • New ways to communicate, to find people with similar interests, and to buy goods are available. All kinds of people are using electronic mail, electronic commerce, and the internet to meet and to share ideas and products.
1.2 Information Systems:
A microcomputer is not just an equipment, i.e. not just a monitor and a keyword. Actually it is part of an information system.
An information system has five parts: i. People: Microcomputers make people like us, end users, therefore more productive
ii. Procedures: are rules or guidelines for people to follow when using software, hardware, and data. e.g. User manuals written by specialists.
iii. Software: Software is another name for a program or programs. A program is the step-by-step instructions that tell the computers how to do its job. The purpose of software is to convert data (unprocessed facts) into information (processed facts). It is the software that processes the data to create information.
[pic]
iv. Hardware: It is the collection of equipment, e.g. keyboard, mouse, monitor, system unit, and other devices. Hardware is controlled by software.
v. Data: Data consists of the raw, unprocessed facts, including text, numbers, images, and sounds, e.g. your quiz, midterm and final marks are raw facts. After data is processed through the computer it becomes information that is your final grade.
To be competent