(a) Explain the following terms: Information System and Information Technology.
(b) Describe the main components of a computer. Illustrate your answer by a block diagram.
(c) Write short notes on the following Internet terminology:
1) Internet Service Provider
2) Web Browser
d) Using examples explain downward, upward and horizontal communication.
e) Elaborate on the telephone communication skills that you need to effectively handle a customer complaint in your organization.