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Supplementary
material for
T175A: Networked living: Exploring
Information and Communication
technologies
Tutor-Marked
Assignment 01
Cut-Off Date: : 8/12/2013
Total Marks: 30
Question
One (10 marks)
(Based on in general Block 1 ideas and specially Block 1 Part2 Session
1)
In a Company a number of hand scanners are
distributed in different buildings to for login and log out purposes. They are
all connected to a main server through the wired network. An employee has a PC,
printer and scanner in his/her office.
a)
Draw an equivalent block
diagram and write key processes in black and others in grey.
(6 marks)
b)
Write the block
description for the hand scanners key process.
(3 marks)
c)
If employees are goring
to share the printer. Modify the above system map to reflect that.
(1 mark)
Question
Two (12 marks)
a)
(Based on Block 1 Part
1 Session 2, Block 2 Part 3 Session 2)
Giving that T is a shortcut of Tera
which is equivalent to 1024 Giga, find out the equivalent storage
capacity of 8.25 TB in bits in scientific notation and rounded to 4 digits.
(4 marks)
b) (Based on Block 2 Part 3
Session 2 )
Use the ‘short-cut’ method to evaluate the
following, write the result in scientific notation. (Show the steps in details)
(4
marks)
c) (Based on Block 2 Part 3 Sessions 3 and 6)
Estimate how many times larger the duty
cycle of device A that typically connects to a network and transmits for 20 ms
in every 0.5 second to device B which transmits for 40 ms in every 2 seconds.
(4
marks)
Question
Three (8 marks)
a) (Based
on Block 1 Part 2 Session 3, Block 2 Part 3 Session 7)
Compare RFID technology with Barcode
systems by filling the following table.
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Characteristics
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RFID Technology
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Barcode System
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How
transmitted
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Equipment
needed
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Items
identification
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Potential
information stored
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Damage
possibility
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(5 marks)
b) For each of the following figures choose a suitable
network technology and justify your choice.
Network 1 Network
2
(3 marks)
