Notes - Information Systems
Overview of Computer Based Information Systems –
Information technology relates to any computer based tool that people use to work with information and to support the information and information processing needs of an organization
Information system collects, processes, stores, analyzes and disseminates information for a specific purpose
Two closely related terms - Data and knowledge
1) Data items – elementary description of things, events, activities and transactions that are recorded, classified and stored… data items can be numbers, letters, figures, sounds and images
Ex. 3, 11, A, B C)
2) Knowledge – consists of data and/or information that have been organized and processed to convey understanding, experience, accumulated learning and expertise as they apply to a current business problem.
Both these produce the information to take action -
Information: data that have been organized so that they have meaning and value to the recipient. Ex. Grade point average (GPA) is data, but a student’s name coupled with his or her GPA is information.
Computer-based information system (CBIS): is an information system that uses computer technology to perform some or all of its intended tasks.
The first four are called “information technology components”. these four components interact to form a CBIS.
1) Hardware – consists of devices such as the processor, monitor, keyboard, and printer. Together, these devices accept, process, and display data and information.
2) Software - is a program or collection of programs that enable the hardware to process data.
3) Database - is a collection of related files or tables containing data.
4) Network - is a connecting system (wireline or wireless) that permits different computers to share resources.
Procedures – are the instructions for combining the above components in order to process information and generate the desired output
“People” are those individuals who use the hardware and software, interface with it, or
Information technology relates to any computer based tool that people use to work with information and to support the information and information processing needs of an organization
Information system collects, processes, stores, analyzes and disseminates information for a specific purpose
Two closely related terms - Data and knowledge
1) Data items – elementary description of things, events, activities and transactions that are recorded, classified and stored… data items can be numbers, letters, figures, sounds and images
Ex. 3, 11, A, B C)
2) Knowledge – consists of data and/or information that have been organized and processed to convey understanding, experience, accumulated learning and expertise as they apply to a current business problem.
Both these produce the information to take action -
Information: data that have been organized so that they have meaning and value to the recipient. Ex. Grade point average (GPA) is data, but a student’s name coupled with his or her GPA is information.
Computer-based information system (CBIS): is an information system that uses computer technology to perform some or all of its intended tasks.
The first four are called “information technology components”. these four components interact to form a CBIS.
1) Hardware – consists of devices such as the processor, monitor, keyboard, and printer. Together, these devices accept, process, and display data and information.
2) Software - is a program or collection of programs that enable the hardware to process data.
3) Database - is a collection of related files or tables containing data.
4) Network - is a connecting system (wireline or wireless) that permits different computers to share resources.
Procedures – are the instructions for combining the above components in order to process information and generate the desired output
“People” are those individuals who use the hardware and software, interface with it, or