Selection and repetition

Selection- Solving a problem often involves making a decision between two or more options. In an algorithm this process of making a decision is called selection.
Examples:
Moving through a set of traffic lights:
1. While driving along a road and come across a set of traffic lights.
2. If the green light is on, then continue driving as before.
3. If the yellow light is on, then begin to slow down and prepare to stop.
4. If the red light is on, then stop your vehicle immediately.

Deciding whether to take an umbrella to school.

1.Look outside of the house to determine the weather at that particular moment.
If:
- It is a sunny fine day, do not take an umbrella.
- It is a cloudy or rainy day take an umbrella with you.

Giving a student an A, B or C on their test.

Calculate the student's percentage of the score the student got on his test result.
If:
- the student got between 0 - 33.3% give them a C.
- the student got between 33.4 - 66.6% give them a B.
- the student got between 66.7 - 100% give them a A.

Repetition- Doing something again and again until you're satisfied, a set of repeated actions.


Examples:
 Filling a bucket with water.
1) Place bucket under tap.
2) Turn tap on.
3) Wait 0.5 minute:
If:
- 4/5 of bucket is filled close tap
- If 4/5 of bucket is not filled progress to step 4
4) Repeat step 3)until 4/5 of bucket is filled up.

Blowing up a balloon:
1. Take a balloon and blow air inside of it using your mouth.
2. Repeat blowing the balloon (blowing and stopping to gain air).
3. Stop blowing the balloon, press the open hole of the balloon to stop the air from escaping it and check if the balloon is the correct size you wanted.
4. Repeat until satisfied (until the balloon has been blown up to the correct size).
5. Tie a knot (or 2) at the opening of the balloon.

Algorithms

Algorithm- An unambiguous set of steps, which when performed correctly by a processor, will result in a process being carried out in a finite time.

For example if you were to explain to someone how to make a cup of coffee you would be defining an algorithm;


1. boil the water,
2. place coffee in the cup,
3. place sugar in the cup,
4. add the boiling water,
5. add milk,
6. stir.

 Examine the algorithm above. What two properties of the algorithm enable it to correctly describe the solution to the problem of making a cup of coffee? What is it that makes an algorithm correct?(Hint: what would happen if you swapped step "6" and step "2"?)

Firstly they must be labelled in the correct order and second you must include every step in the process. An algorithm is correct when the steps of the process is in the right order eg. in step 6 of how to make a cup of cofee you can't start stiring unless you got the coffee mixture in their with the coffee in step 2
2. Define Algorithms for the following processes.
Posting a letter.

1. Get the materials needed such as pen, paper, envelope, stamp, other things included in letter
2. Write the letter with a pen and include other items you want included in the letter eg. photographs, money, etc.
3. Place the letter in an envelope.
4. Seal the envelope.
5. Write the details of the person your sending the letter to on the front of envelope
6. Place stamp in front of envelope
7. Go to post office.
8.Place envelope in the post box.

Making toast. Calling a friend on the phone

1. buy bread from store

2. buy toaster from store
3. buy topping from store
4.place bread in toaster
5. choose the setting for the toasting degree
6. press the toaster button down.
7. wait for the bread to toast.
8. take bread out of toaster after done toasting
9. place toast on plate
10. Put a topping on your toast
11. place toast in hand
12. open mouth
13. place toast in open mouth
14. close mouth.

15. chew
16 .repeat steps 12-15 until all consumed.
17. clean up.

Calling a friend on the phone

1. Get the phone

2. Find your friend's number in which your goning to call
3. Dial his/her number on the phone using the number buttons
4. Press the call button
5. Wait till he/she picks up the phone
6. Hold phone to ear to talk on the phone
7. Once done talking, press the end call button
8. Put the phone back

Flowchart symbols and logic

What is a flowchart?

The flowchart is a means of visually presenting the flow of data through an information processing systems, the operations performed within the system and the sequence in which they are performed.

Describe the basic flowchart symbols for;

With the decision making symbol (diamond) and the process symbol (rectangle), what are the rules for how many lines may enter and leave the symbol.

Only one flow line should come out from a process symbol

Only one flow line should enter a decision symbol, but two or three flow lines could leave as each flow line could be a possible answer

Study the sample flowcharts then create a flowchart for a coin toss where heads means Mary pays for the pizza and Tales means Bill pays.

assignment

i have uploaded my website on studentnet under student work in IST

Website Assignment

I am finished my website, it was quite difficult but once I got the hang of Microsoft Office Sharepoint Designer it became easier. The name of my website is Trendy 101on music,movies,styles,gossip and IT careers. Here is the storyboard of my site

This page is where you login- Login for Mr Cavil
                                              username: MrCavil
                                              password: Password2

If you enter the incorrect password this is what comes up

When you enter the correct login this comes up

Then this page sends you to the home page which links you to the latest music,movies,styles,gossip and careers

You can then go to the Music Page- you can learn about new songs ang links to the youtube music video of the song

Movie Page- find out the latest movies in the cinemas and find out the director,who stars in it,what the plot is and a trailer of the film

Styles page- See new clothes and find out how they cost and from what store

Gossip page- Find out what is happening with your favourite celebrites

and IT Careers- A list of IT careers

 

Using Frontpage

What two steps are recommended in planning your site?

Establish the goal of the site first:

tips for creating a goal for your site:

• Make sure you know who your audience is. For example, is your site intended for customers? employees? students? friends? family?
• If you are making a site for your company, make sure the goal is specific and quantitative. After all, your boss will want to see results, and that usually means a specific dollar amount gained or number of labor hours saved.
• Keep your goal simple. A couple of sentences or a short paragraph is enough. If your goal is too long, your site will end up looking like it's trying to do too much.

Sketching out a structure before creating a site in FrontPage and after you've sketched a map of your site, it's time to start sketching a common layout for each of your pages.

What is a web server?

A Web server is a computer that runs special serving software. That software "serves" HTML pages and associated files when requested by a client, such as a Web browser.

How do you put your website on a web server?

To put your site on a Web server, you publish it.Publishing generally means copying all of the files to a remote location on a server. In most cases, the remote location is either an HTTP path or an FTP path. The path you use depends on what technologies your server supports.

A server running FrontPage Server Extensions or SharePoint Services    If your Web server is running one of these technologies, you would publish your site to an HTTP location.

A server supporting FTP    FTP (the File Transfer Protocol) is another popular way to upload files to a remote server. If your server supports FTP, you would publish to an FTP location.A server supporting

WebDAV    Although not as common as the methods above, your server may support WebDAV (Web-based Distributed Authoring and Versioning). If this is the case, you would publish your site to an HTTP location.

FrontPage has two key functions – website design and …..?

Management tool

What are some commonly used file names for Home Pages accepted by servers?

html

What is FrontPage Metadata and which two folders contain these files?

FrontPage metadata is information about your FrontPage Web site that makes managing the site possible. The _vti_cnf folder contains information about every file, such as which links are within the file and who modified the file and when. The _vti_pvt folder stores all of the configuration information for the site.

There are two basic types of website can you create in FrontPage; what are they and how do they differ?

 a disk-based site is a FrontPage Web site you create on your local hard disk and then later publish to a Web server. A server-based site is one you create and work with directly on a Web server, without the extra step of publishing.

computing anywhere,anytime

What is meant by a netbook? What is the 'cloud' in cloud computing?


Netbook is a small laptop(from 9 to 12 inches screen) usually with intel atom processor and intel gma graphic adapter made to be extremely portable, low on power usage(some can last for up to 9 hours or even more on the batteries), while their running performances are significantly slow and not designed to run games on.The cloud is a virtualization of resources that maintains and manages itself.

What applications does Google docs offer online?

Create basic documents, upolad your existing files, create spreadsheets and presentations online, Share and collaborate in real time, Safely store and organize your work, Control who can see your documents.

Why would you want you documents stored in the “cloud” (online)?

There are various advantages. First a major feature of cloud applications is that you can share them with colleagues or friends. You simply allow them access to the document instead of sending this document as an email attachment. Cloud computing can be done across various platforms. You don't have all those documents stored on your own computer, instead they are saved and stored "online", i.e. on the servers of the provider of the cloud application.

Advantages for students and teachers in google docs?

Enter Google Docs. students can create a spreadsheet in which you can share deadlines and assignment details (for example, whether it's a group or an individual task; if it requires write-ups, presentations, or just preparation). People can update them and edit and their work in group assignments in order to know how much work the other people have done.  You can use it to post to your blog, do writing assignments, type notes for reading assignments.  For teachers: For creating presentations to engage the students, share teaching methods or work that you are going to do. Upload the work for students if they lose the sheets or are away.

Which netbook, if any would suit your needs? Explain.

If I were to get a netbook i would like to get Dell Mini 10 (1012) because it is stylish,  impressive build quality, excellent screen, great keyboard and long battery life.