What is Computer & Information System?

 Information system (IS) is the study of complementary networks of hardware and software  that people and organizations use to collect, filter, process, create, and distribute data. The study bridges business and computer science using the theoretical foundations of information and computation to study various business models and related algorithmic processes within a computer science discipline.Computer Information System(s) (CIS) is a field studying computers and algorithmic processes, including their principles, their software and hardware designs, their applications, and their impact on society while IS emphasizes functionality over design.


Any specific Information System aims to support operations, management and decision making.In a broad sense, the term is used to refer not only to the information and communication technology (ICT) that an organization uses, but also to the way in which people interact with this technology in support of business processes.


Some authors make a clear distinction between information systems, computer systems, and business processes. Information systems typically include an ICT component but are not purely concerned with ICT, focusing instead on the end use of information technology. Information systems are also different from business processes. Information systems help to control the performance of business processes.


Alter argues for an information system as a special type of work system. A work system is a system in which humans and/or machines perform work using resources to produce specific products and/or services for customers. An information system is a work system whose activities are devoted to processing (capturing, transmitting, storing, retrieving, manipulating and displaying) information.
As such, information systems inter-relate with data systems on the one hand and activity systems on the other. An information system is a form of communication system in which data represent and are processed as a form of social memory. An information system can also be considered a semi-formal languagewhich supports human decision making and action.
Information systems are the primary focus of study for organizational informatics.


^References
 
Coy, Wolfgang (June 2004). "Between the disciplines". ACM SIGCSE Bulletin 36 (2): 7–10. doi:10.1145/1024338.1024340. ISSN 0097-8418
 "Computer science is the study of computation." Computer Science Department, College of Saint Benedict, Saint John's University