Cyber InfoTechnology

WEEK 04


REFLECTION IN THIS WEEK

      This week I have learned about the information system as you can see in this page. Information system defines as a combination of hardware, software, infrastructure and trained personnel organized to facilitate planning, control, coordination and decision making in an organization also I have learned the components of Information System as well as the use information system in our daily life. 

INFORMATION SYSTEMS

INFORMATION SYSTEM:DEFINITION

A combination of hardware, software, infrastructure and trained personnel organized to facilitate planning, control, coordination and decision making in an organization.

Adapted from:

(http://www.businessdictionary.com/definition/information-system.html)

IS vs IT

 

Characteristics of 5 components

MANUAL  AND COMPUTERIZED INFORMATION SYSTEMS

Example of Purchasing order Process using the Information System: 

 

COMPONENTS OF IS: HARDWARE

*Consists of  computer  equipment used to perform input, processing and output activities.

COMPONENTS OF IS: SOFTWARE
 

*Consist of computer programs that govern the operation of the computer.

*Allow to process payroll, send bills to customers, provide managers with information to increase profit, reduce costs and provide  better customer service.

COMPONENTS OF IS: DATABASE 

An organized collection of facts and information, typically consisting of two or more related data files.

COMPONENTS OF IS: TELECOMMUNICATIONS, NETWORK AND INTERNET 
 

*Telecommunications: Electronic transmission of signals for communications which enables organizations to carry out their processes and task through effective computer networks.

* Networks: connect computers and equipment in a building, around the country or around the world to enable electronic communication.

* Internet: World’s largest computer network actually consisting of thousands of interconnected networks all freely exchanging information.

COMPONENTS OF IS: PEOPLE
 

*  People who:

• Manage
• Run
• Program
• Maintain

COMPONENTS OF IS: PROCEDURES

*Strategies, policies, methods and rules for using computer information system including operation, security and maintenance of the computer.

* For Example: some procedures describe when each program should be run.

* Good procedures can help companies take advantage of new opportunities and avoid potential disasters.

INFORMATION SYSTEM FRAMEWORK

EXAMPLES OF IS