Information systems are the software and hardware systems that support data-intensive applications. Information Systems publishes articles concerning the design and implementation of languages, data models, algorithms, software and hardware for information systems.

2.system components & concepts?

Components of Information Systems

People , Equipment , Procedure , Data

People

There are many roles for people in information systems. Common ones include

Systems Analyst
Programmer
Technician
Engineer
Network Manager
MIS (Manager of Information Systems)
Data entry operator

Equipment

When you think "equipment", immediately think "Hardware AND Software"

Procedures

A procedure is a series of documented actions taken to achieve something. A procedure is more than a single simple task. A procedure can be quite complex and involved, such as performing a backup, shutting down a system, patching software.

Data

The raw, unorganised, discrete (separate, isolated) potentially-useful facts and figures that are later processed (manipulated) to produce information.

Components of information system
o hardware,o software,o database management systems,o networks, o process and standard procedures, and o people comprise the components of the system.

3.classification of system