Course Outline for KCSE/KICD Computer Studies: Introduction to Networking and Data Communication

Course Outline for KCSE/KICD Computer Studies: Introduction to Networking and Data Communication

10.00 INTRODUCTION TO NETWORKING AND DATA COMMUNICATION (24 LESSONS)

10.1.0 Specific Objectives

By the end of the topic, the learner should be able to:
a) Define computer networking terms
b) State the purpose of computer networks
c) Describe the elements of a network
d) Describe various types of networks
e) Describe various types of network topologies

10.2.0 Content

10.2.1 Definition of Terms
i) Computer network
ii) Data communication

10.2.2 Purpose and Limitations of Networking

Purpose
i) Resource sharing
ii) Remote communication
iii) Distributed processing facilities
iv) Cost effectiveness
v) Reliability
Limitations

10.2.3 Elements of Networking

a) Data Communication Media

  • Communication with cables
    i) Twisted pair cable
    ii) Coaxial cables
    iii) Fiber-optic cables
  • Communication without cables (wireless) e.g.
    i) Microwave
    ii) Satellite
    iii) Radio transmission
    b) Data Signal
  • Digital
  • Analog
    c) Communication Devices e.g.
  • Modems
  • Network cards
  • Hubs
    d) Network Software
  • Operating systems
  • Protocols

10.2.4 Types of Networks

  • Local Area Network (LAN)
  • Metropolitan Area Network (MAN)
  • Wide Area Network (WAN)

10.2.5 Types of Network Topologies e.g.

  • Ring
  • Star
  • Bus
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