INFORMATION SYSTEMS
Information System...
Is
an integrated set of components for collecting, storing, and processing data
and for delivering information, knowledge, and digital products. Business firms
and other organizations rely on information systems to carry out and manage
their operations, interact with their customers and suppliers, and compete in
the marketplace.
Manual and Computerized Information System...
The manual system is tedious and it is more error
prone. We can handle our work much efficiently with the computerized system and
it helps to save our time and money. The popularity of the computerized system
is increasing day by day and most of systems are being computerized nowadays.
The term 'online system' is commonly used to refer the system of computer and
internet and the online system has played a vital role to make our lives
comfortable and convenience.
Components of Information System...
An information system is a system that accepts data
resources as input and processes them into information products as output. An
information system depends on the resources of people (end users and IS
specialists), hardware (machines and media), software (programs and
procedures), data (data and knowledge basis), and networks (communications
media and network support) to perform input, processing, output, storage, and
control activities that convert data resources into information products.
People Resources...
Are required for the operation of all information
systems. This people resource include end users and IS specialists.
Hardware Resources...
includes
all physical devices and materials used in information processing. Specially,
it includes not only machines, such as computers and other equipment, but also
all data media that is, all tangible objects on which data is recorded,
from sheets of paper to magnetic disks.
Software Resources ...
includes all sets of information processing
instructions. This generic concept of software includes not only the sets of
operating instructions called programs, which direct and control computer
hardware, but also the sets of information processing instructions needed by
people, called procedures.
Data Resources...
Data is more than the raw material of information
systems. The concept of data resources has been broadened by managers and
information systems professionals. They realize that data constitutes a
valuable organization resource. Thus, you should view data as data resources
that must be managed effectively to benefit all end users in an organization.
Information System Framework...
- Executive Support Systems- ("ESS")
- Management Information Systems- ("MIS")
- Decision-Support Systems- ("DSS")
- Knowledge Management Systems- ("KMS")
- Transaction Processing Systems- ("TPS")
- Office Automation Systems- ("OAS")
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