Types of computer Network

Networking Summary Notes

Notes Summary

Audio explanation of computer networks.
https://snatpedia.com/Types-of-network.html

Notes Summary of Computer 
https://snatpedia.com/Types-of-network.html

Difference between SAN and RAID
http://www.careerride.com/nw-raid.aspx

Intranet, Extranet, Internet
http://www.omnisecu.com/basic-networking/internet-intranet-and-extranet.php

Network Topologies
https://www.youtube.com/watch?v=4ZaTa_JQM_E

Slideshare https://www.slideshare.net/AdilAslam4/types-of-network-topologies-69291119

Revision Quizzes
https://www.proprofs.com/quiz-school/story.php?title=types-computer-networks

http://www.bbc.co.uk/bitesize/quiz/q58447030

Game Making Project

Our next project will be creating a simple game using any free game building software of choice.

The game developed should;

• Solve a specific problem
• Apply different gaming building techniques and skills i.e moving from level 1 to level 2
• Last for not more than 2 minutes.
• Have instructions on how it is played
• be interactive with multimedia use where possible
• Demonstrated in class how the game is played or  the is uploaded on YouTube and link shared on ManageBac under message space.

- You will be allowed to consult freely with your peers and get help from experts but your product should be unique using different game building software and solving unique problems.

- You will be allowed to code or modify existing code of a game to solve you specific problem.

This work will be assessed based on your creativity, how the game solve the problem identified and the degree to which software techniques and skills are applied.

Resources for Reference
http://www.makeuseof.com/tag/five-free-game-development-tools-make-your-own-games/

https://lifehacker.com/the-best-free-tools-for-making-your-own-video-games-1689905461

https://www.buildbox.com/12-indie-games-thatll-inspire-you/

http://wimi5.com/

Assessment Rubric

CRITERIA	Levels of Achievement
	Baseline	Effective	Exemplary
Organization and Design
Navigation	0 points Navigating the game is confusing and information cannot be found easily.	3 points Some navigation is unclear, resulting in a few places where Players can become lost.	5 points The game is well-organized and easy to navigate. Players can clearly understand where they are and where to go next.
Application of Skills and Techniques
Different Techniques and skills used	0 points The game applies very few basic software techniques and skills.	3 points The game applies some useful  software techniques and skills.	5 points The game applies detailed and appropriate software techniques and skills.
Solving the Problem
Effectiveness	0 points The game does not solve the stated problem	3 points The game partially solves the problem stated	5 points The game solves the problem identified effectively

Computer Networks

Introduction to Computer Networks

Objectives for the lessons

• Be able to define what a computer network is
• Describe the different functions of network devices / hardware
• Distinguish between host and a server computer, P2P network, 
• Describe the different network types and Wireless network
• Examine the different network topologies

Watch the Ted video

All computer devices can be hacked

http://www.ted.com/talks/avi_rubin_all_your_devices_can_be_hacked

How computer network impact our lives

https://www.youtube.com/watch?v=p6BPnbui4Bk

Network Devices and Hardware

Examples of network devices

https://fossbytes.com/networking-devices-and-hardware-types/

http://www.certiology.com/computing/computer-networking/network-devices.html

Client, Host, Server Computer;
https://learntomato.com/what-is-a-client-what-is-a-server-what-is-a-host/

Network Communication Media
http://www.snatpedia.com/communication_media.html

Computer networks basics

https://www.youtube.com/watch?v=JvXro0dzJY8&index=1&list=PLtJDAcNXilyT-ykli3snQsu3Xe5FlA37Y

Notes Slideshare

http://www.slideshare.net/ASHadventurelover/introduction-to-computer-network-33788727

http://www.slideshare.net/makyong1/basic-concepts-of-computer-networks?next_slideshow=1

http://www.slideshare.net/makyong1/basic-concepts-of-computer-networks

http://www.slideshare.net/hemangkothari/lecture-1-introduction-to-computer-network-2013

Resources 

Types of computer networks

http://freewimaxinfo.com/computer-networks-types.html

Wireless networks

http://freewimaxinfo.com/wireless-network.html

Network topologies

http://freewimaxinfo.com/computer-network-topologies.html

Network Devices

http://wifinotes.com/computer-networks/network-communication-devices.html

Ethical Dilemmas facing Developers today

http://www.infoworld.com/article/2607452/application-development/12-ethical-dilemmas-gnawing-at-developers-today.html

Analyse one of the dilemmas and share your views.

Ethical issues for computer network security professionals

http://www.computerworld.com/article/2557944/security0/ethical-issues-for-it-security-professionals.html

Animation Project

Create Animation Product to sensitize Kenyans on the important of peace at this time of  presidential repeat election.

Your animations should;

• Apply advance techniques in the animation software of choice.
• Have at least two characters
• Include inbuilt voice/speech generation from characters and music
• Show difference scenes applied
• Last for between 40 secs and 1 minute.
• The Animation should be uploaded on YouTube.

Example

https://www.youtube.com/watch?v=O3qZQlepP7Y

Special Purpose Application Software

Research and describe ONE special purpose application software used in the listed specific scenarios. In your description, include the benefits of using the software in that field.

1. Health
2. Business and Employment
3. Education and Training
4. Environment
5. Home and Leisure
6. Politics and Government

The Quality of Software

The software market is highly competitive even though Microsoft dominates the operating system and productivity software markets. Competition and other market pressures have forced software vendors, including Microsoft, into rushing their products to market, bugs and all. Some industry observers have argued that the quality of software is declining with an increasingly higher percentage of bugs being left intact within commercial software. The end result of this rush to market is that customers lose time and money coping with annoying bugs. Information technology and those who make software decisions are putting pressure on software vendors to raise the quality of their software. Generally, they want a clean product, even if they have to wait for it.

Discussion:

What can software vendors do within the context of competition and economic reality to improve software quality?

Discussion:

What can those who buy commercial software do to improve software quality?

http://wps.prenhall.com/bp_long_computers_12/16/4332/1109235.cw/content/index.html

Answering Paper 2 Guidance

Task A.

Read the article and use the marking to assess the student's response. 

1. CHILD DRINKERS ARTICLE
2. MARKSCHEME
3. STUDENT'S RESPONSE

GuiDANCe in ANSWERING PAPER 2 ARTICLE QUESTIONS
Criterion A;
Part 1: What is the social and ethical issue being presented?
            Why is it a concern? What direct descriptions from the article shows that this is the issue mentioned?
            What extract / quotes from article supports the above?

Part 2: Who is the primary stakeholder?
            How does the primary stakeholder use the IT system?
            Which part of IT system is used by the stakeholder?
            
This answers "Who", "How" and "Why"

Criterion B;
Use the document in the link below to learn how to respond to criterion B.
Answering ITGS Paper 2 Criterion B

Criterion C;
Use the document in the link below for ideas on how to respond to criterion C;
Answering ITGS Paper 2 Criterion C 

Criterion D:
Part 1: Describe the one problem resulting from the use of the IT system.
            What is the impact of the problem?
            State  one solution to the one problem described
Part 2:  Describe how the solution will work
           NB Technical solutions should be describe with IT terms showing inputs, processing, storage, outputs.
           Non technical solutions should be supported with policies and actions required.
Part 3: Evaluate some positives strengths of the solution in solving the problem.
            Evaluate some negatives of the solution in solving the problem.
Part 4; Conclusion
        What  areas of the solution do you have issues with?
        what do you recommend for future development of the solution       

Summary of all \Criteria.
Overall strategy for Paper 2 Criteria

Read the News Article

https://www.usatoday.com/story/news/nation/2012/10/19/parents-monitoring-teen-driving/1638475/

Assignment for Wednesday 8th Nov 2017

Use the article assigned to prepare a presentation for the Paper 2 of question. 

The answer booklet in attached below;

https://drive.google.com/file/d/0B8VAiXCgqIIbU1NsdDBPWEhha0E/view?usp=sharing

The news articles are in the following link; http://isditgs.weebly.com/paper-2-samples.html

Alya & Gurjog

Paper-2-article-prisoner-monitoring-system.doc

Shahil & Ali-Mohammed

Paper-2-article-digital-manipulation.doc

Esther & Wahaab

Paper-2-article-olympic-facial-recognition.doc

Preet & Dhruv

Paper-2-article-teachers-bullied-online.doc

Alameen & Hussein

http://www.theverge.com/2017/1/29/14403924/smart-glasses-automatic-focus-presbyopia-ces-2017

Krishan & William

https://www.engadget.com/2017/01/26/genetically-modified-cyborg-dragonflies/

Kirunda & Amin

https://www.theguardian.com/global-development/2017/jan/01/medical-smart-jacket-tackles-misdiagnosis-of-pneumonia

Davesh & Carlos

paper-2-crime-updates-online.doc

Mohammed & Karan

paper-2-paramedics-use-qr-codes.doc

Naeem & Riya
paper-2-sim-card-to-prevent-cyberbullying.doc

Discussion Questions

1.    Computer of the Future

Think about how mobile our computing devices have become and the convergence of different devices such as cameras, phones, and computers. What do you think the computer of the future will be like? What capabilities will it have that computers currently don’t have? Do you see desktop computers becoming obsolete in the near future?

2.    Table Monitors and PixelSense Monitors

Table monitors and PixelSense monitors are monitor-like devices built into tabletops and work surfaces. Users “grab” and manipulate objects on the display using touch commands. Like an iPod Touch or iPhone, the display is multitouch and can accept simultaneous input from multiple users, so the table monitor can be helpful with games or other products that require interactivity. Microsoft launched a product called PixelSense in 2007, and although it never really took off, you see similar devices featured on some TV crime-fighting shows as detectives manipulate crime evidence and photos. Why do you think this device never really captured the interest of the public? Would this be a useful object to have in your home, classroom, or office? Why or why not?

3.    Ethics Violations

Review the Ethics in IT section in this chapter. Which of the 10 Ethical Computing Guidelines do you think students violate most often? Why do you think these violations occur, and what do you think could be done to reduce or eliminate such unethical behaviors?

4.    External Storage

Hard drives are great for storing data on your computer, but there are many reasons why you might want to have alternative storage devices. List various external and mobile storage devices discussed in this chapter, and describe the purposes and uses of each. Which device types do you currently use, and for what purposes? What device(s) might you have a need to use in the next year or so?

5.    iPad

The Apple iPad has been enthusiastically accepted because of its multitouch screen, useful apps, two cameras, and small, light frame. If the CEO of Apple were to ask you for your advice as to what to include in the next version of the iPad, what would you suggest? What features would make tablets even more appealing to students?

6.    Market Dominance

Microsoft and Apple are large corporations and have control of most of the OS market. Although there have been some innovative changes to both of their proprietary operating systems, does their size and market dominance prevent more innovation? Why or why not? Linux, as an open source environment, is poised for greater innovation. Why do you think the Linux OS doesn’t have a greater market share?

7.    A Web-Based OS

OS interfaces have evolved from a text-based console format to the current GUI. Modern operating systems such as Windows and OS X are starting to include features that store and retrieve data from the cloud (the Internet). Many believe the OS of the future will be totally web-based and not require the installation of an OS on a specific device. Discuss the implications of this type of OS. What are the potential security issues of a totally web-based OS?

8.    To Hackintosh or Not: That Is the Question

Using Mac’s Boot Camp, or virtualization software such as VMware, it’s easy (and legal) to install Windows on a Mac. It isn’t quite as easy to install Mac OS X on a PC, but it can be done. A PC that has been modified so that Mac OS X can be run on it is called a Hackintosh. What are the benefits of tweaking a PC to run Mac OS X? Is it okay to violate Apple’s End User Licensing Agreement (EULA), which prohibits installation of OS X on non–Apple-branded equipment? If Apple changed its EULA to allow the installation of its software onto PCs, would that ultimately hurt Apple-branded computers?

9.    What App Is Best for You?

There are plenty of interesting apps available for Windows and Apple devices—some for fun, some to aid in productivity, some with specific utilitarian roles. Design or describe what the best app for you would be. What features must it have? Why would you need it?

110.    Living on the Cloud

Cloud computing is becoming more popular, and many users are working from the cloud and not even realizing it. What kinds of software applications are you using that are completely Web-based? Why do you use them instead of installed software applications? Envision a time when all software is Web-based and describe how being totally on the cloud would be an advantage. Also list some of the disadvantages a cloud-based environment might present.