Information Systems (E412)Dr. Khaled Morsy4th CommunicationsSecond Term : 2013-2014Ch 1 Exercise 1 (weeks 1,2)1- What is meant by System? (page 4)

2- What are the basic components of system. Illustrate with an example.( page 4 input, processing , output)

3- Explain the importance of feedback and control concepts as additional components of some systems. Illustrate with figure. (to enhance the performance of the system output) , example page 5 Feedback is data about the performance of a systemControl involves monitoring and evaluating feedback to determine whether a system is moving toward the achievement of its goal .Control

Feedback &control signals feedback &control signals4- InputProcessingOutput

5- 6-

7- For a center of population statistics as a system, decide what could be the inputs, processing tasks, and outputs of the system?

8- For a printing /press house system, what you consider the system components (input, processing, output , feedback and control) .

9- Draw a pentagon model showing the activities of the information system and the resources involved to achieve its goals. (page 7)

10- Define the terms: (information system, cybernetic system, open system)IS : a system that accepts raw data as input , process the data to produce the information as outputCybernetic system :

11- Complete the following statements:

a- The data resources of IS are typically organized into :(1)that .

(2)that . b- The network resources of IS include:(1).. such as ., ., (2).. such as .., ., , . 9- How to differentiate between data and information?, illustrate with figure.10 - Show a simple model that shows the components of a business organization with the surrounding environment elements.12- Show with an example, how the stored data is organized in information systems? (Fig 1.8) page 14.13- Illustrate with figure the attributes of information quality.14- What are the basic roles of IS (page 15)