Textbook in PDF format

"Essentials of Information Systems" is a condensed and accessible introduction to information systems and their use in modern organizations. It equips the reader with basic knowledge of information systems and is particularly suitable for introductory courses as well as for anyone with an interest in the subject.
What are information systems?
Information systems as a part of the business strategy
Computer systems
Datastorage
Networks
Databases
Information systems in an organisation
Systems development
Computer crime and security
Computers, ethics and society
Index