T175A: Networked living: Exploring Information and Communication technologies

Spring Semester 2016/2017
Tutor-Marked Assignment (TMA)

Cut-Off Date: xx/xx/xxxx
Total Marks: 40

Question One (21 Marks)
(Based on Block 1) consider the following description of an Information and communication technologies (ICT) system:

An ICT system has the following description: Two users of personal digital assistants (PDAs) are communicated to each other via a Wi-Fi network. The users of PDAs can access their accounts on Hotmail server via Internet in order to check their emails. One of the PDAs is communicated to a mobile phone via Infrared.

a) Draw a system map of the above ICT system? (9 Marks)
b) Draw a block diagram of the above ICT system? (12 Marks)

Question Two (19 Marks)
Search the web to answer the following.

a) Define Light Fidelity (Li-Fi)? (2 Marks)
b) Give the two main components of Li-Fi system? (4 Marks)
c) List two disadvantages of Li-Fi system? (4 Marks)
d) List two advantages of Li-Fi system? (4 Marks)
e) Mention three applications of Li-Fi system? (3 Marks)
f) List any two references on Li-Fi system. (Wikipedia is not counted) (2 Marks)

End of Questions