An information system is composed of elements that work together to achieve a purpose. It performs information processes requiring participants, data/information, and information technology. The relationships between these elements are shown in a figure. An information system addresses the needs of individuals or groups and is influenced by its environment. It uses tools like hardware, software, and participants to input, process, store, output, and control data and information.

2. • A system is a group of elements
that work together to achieve a
purpose.
• An information system performs
a set of information processes
requiring participants,
data/information and information
technology.
• The relationships between the
elements of an information system
are shown below.

3. [ DRAW Figure 1.3 from p.7]
• Information systems have a purpose,
which means that they address the
needs of a group or individual.
• The environment is everything that
influences, or is influenced by, an
information system.
• Information technology is the set of
tools used by the information system
or its participants to perform work.

4. • Hardware is the physical equipment
involved in processing information.
• All devices perform one of the five
following functions:
•input
•output
•processing
•storage
•control
• All these different functions work
together.

5. • Software is the detailed instructions
that direct the hardware to perform
certain tasks.
• There are two main kinds of software:
• application – programs for a
specific task
• system – manages and controls
computer
• Data is the raw material that is entered into
an information system.
• Data is unprocessed and not yet useful to
the user.

6. • Information has been processed and
given meaning.
• It is created or modified by one or
more information processes.
• Participants are the people who carry
out the information processes.
• Participants are also called direct
users since they interact with the
system.
• Indirect users are NOT part of the
system but they are affected by it.