Arab Open University Faculty of Computer Studies Computing and Information Technology Department T175A: Networked living: Exploring Information and Communication technologies 1 TutorTutorTutorTutorTutor-Marked Assignment 01 Marked Assignment 01Marked Assi

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Arab Open University Faculty of Computer Studies Computing and Information Technology Department T175A: Networked living: Exploring Information and Communication technologies 1 TutorTutorTutorTutorTutor-Marked Assignment 01 Marked Assignment 01Marked Assi

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Arab Open University
Faculty of Computer Studies
Computing and Information Technology Department
T175A: Networked living: Exploring Information and Communication technologies
1
TutorTutorTutorTutorTutor-Marked Assignment 01 Marked Assignment 01Marked Assignment 01Marked Assignment 01 Marked Assignment 01 Marked Assignment 01 Marked Assignment 01Marked Assignment 01 Marked Assignment 01Marked Assignment 01
Cut-Off Date: 25/7/2015
Total Marks: 20
TMA Contents
Question 1 (10 marks)……………………………………………………
Question 2 (10 marks)……………………………………………………
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Arab Open University
Faculty of Computer Studies
Computing and Information Technology Department
T175A: Networked living: Exploring Information and Communication technologies
2
Question One (10 marks)
1) (Based on Block 1) consider description of a Smart Navigation System ICT and then draw a detailed block diagram for it?
A vehicle has an onboard unit (which contains a GPS receiver, a voice simulator and others). The GPS receiver communicated with four GPs Satellites for locating vehicle location purposes by receiving signals from the satellites.
To use the Smart Navigation System the driver alerts the control center by pressing a button on the dashboard to speak to a human adviser in the control center. The driver informs the adviser of the required destination, and the vehicle’s current location is transmitted to the computer in the control center via the mobile network.
The on-board unit has a GPS receiver and a link to the control center via a mobile phone network. The computer plots a route, which is sent to the on-board unit via the mobile phone link.
Control center uses a network of ANPR cameras along major roads. Data from these enables the control center to maintain a database of the current state of traffic flow on most of the major roads and motorways in the country. The route that is sent to the vehicle takes account of prevailing traffic conditions.
As the driver drives along the route that has been sent from the control center, the on-board GPS receiver monitors the car’s position so that appropriate instructions can be given. Modifications to the route can be issued during the journey if, for instance, the driver misses a turning or new traffic conditions emerges.
The following figure describes the system.
(5 marks)
Hint: consider the computer in the control center in addition to all other equipment as one subsystem in your diagram. Also consider the onboard unit in the vehicle with its entire component as one subsystem in the block diagram.
Arab Open University
Faculty of Computer Studies
Computing and Information Technology Department
T175A: Networked living: Exploring Information and Communication technologies
3
2) In your house there are:
 A scanner that is connected to a laptop via cable.
 A mobile that is connected to another mobile via a Bluetooth link
 An RFID Reader in the kitchen which interrogates items about their expiration date.
 An AC controlled by a remote control.
 The laptop, mobiles, RFID reader, and AC are all part of the Zigbee network which contains a network coordinator.
Draw a detailed system map for the description above? (5 marks)
Question Two (10 marks)
In Block 2 Part 3 you learnt about many wireless technologies, but still there is more. Microwaves are a type of electromagnetic radiation. Search the web to answer the following:
1) What is the frequency band of the Microwaves? (1 mark)
2) List four properties of microwaves. (2 marks)
3) List four uses of Microwaves. (2 mark)
4) Choose one of the uses you mentioned in the answer of question c and write 60-80 words about it.(2 marks)
5) List two effect of microwave on our health. (1 mark)
6) List two URLs of the web pages you used. (Wikipedia is not counted) (2 marks)

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