My reflection

I studied many things in ICT in this year: chapter 2, chapter 3, chapter 4 and chapter 5. My favourite chapter was chapter 4 because I made my first and own questionnaire ti distribute to my classmates and teachers. Ms.Kavitha is a really good and challenging teacher, serious but not bad. She teached us and then, when we finished the whole chapter, we would do a test based on the whole chapter.
The interesting thing about this chapter is that you can find out all the difficult thing in the computer and about it. I liked the year with Ms.Kavitha and i need to say 'THANK YOU' to her, she let me discover a lot of things!!!

Case study 5

Q1. How many different things did you count? What were they? In what ways might computers be used to control different things in the supermarket?

 A1.10 different  things. They are the microwave, GPS, gas fill up, car park barrier, Car reverse sensor that goes beep, robot, automatic door, freezer, conveyer belt, pays with the card. The computer controls the air conditioner, the fans, the freezer, the lights, the conveyer belt, barcode sensor, automatic doors and the room temperature.

Q2. Why is it useful to use computers rather than people to control things? What problems might there be if any of the computer systems fail in the supermarket?

 A2. If we use people to control the machines then it will be slower and it is too much for them to control. People will wait for a very long time to get their turn in line.

Q3. Describe the inputs and outputs for the other devices that we have talked about so far. How do the supermarket doors and car park barriers know when to open? Identify other control systems that work automatically in this way.

A3. Microwave’s input is set the time and output is cook food,Alarm clock’s input is set the time and output is alarm on, Car barriers’ input is swap the card or punch the button, and output is open the door, Supermarket door’s input is move to the door and output is open the door.

Q4.What would happen if the instructions were wrong? These instructions assume that the car is in the right place. What would happen if the car were not there? How could they stop this happening?

A4.If the instrument  were wrong , the robot will drop the wind shield and broke it. If the car was not there the robot will automatically stop. They stop this happen by stop the mechine.

Case Study 4

Q1:How could Mussie and Ellie find out whether older people do more for charity than younger people?
A1:They could go on the Internet and find some information and some charity websites.
Q2:Why does Mussie think that these data prove him right? Why might Ellie think that these data do not prove him right?
A2:Mussie thinks that the data prove him right because when they looked at the numbers it shows that the amount of money donated by older people is more than the amount donated by younger people. Ellie thinks that the data do not prove him right because the data that they have is just from one charity websites and it might not be the case for all charities, the amount of money given by younger people is going up every year, while the amount given by older people is going down and it only shows the amount of money that people have given. She thinks that younger people might spend more time doing charity events.
Q3:What questions should they ask?
A3:They should ask:"Do or Did you do charity?", "Do or did you do charity work?", "How much time do you spend in charity?", "How much time do you spend in charity work?", "In what grade are you in?".
Q4:How many questionnaires should they hand out? Who do you think should fill in their questionnaire?
A4:They should hand out 100 copies of their questionnaire so they can divided half of copies to the older people and the other half  of copies to the younger people. But they could also do more copies because it's better to know other people interests.
Q5:Which software could Mussie and Ellie use to put the answers into the computer? How can they check that the data are correct? How could they reduce the number of errors in the data? What problems might be there be if the data were typed in incorrectly?
A5:They should use Microsoft Excel (spreadsheet). They can check if the data are correct with formulas so that the calculations are right. They can refuse the number of errors writing properly and carefully. They might come to the wrong conclusion when they look at the data.
Q6:What is the best way for Ellie and Mussie to present their results?
A6:The best way for Ellie and Mussie to present their results is create a report to show their results. They should use a line graph for show them, too.

3.0 Questions -> Answers

Q1:What might be the differences between a computer system set up for gaming compared to one set up for a business use?Think about the different hardware that might be needed.
A1:A computer system for games it's more powerful than a computer system for business because the games need more memory for contain it so it's more powerful than a business system.

Q2:Earl has got £800 to spend. How can Shaheen work out if he has enough money? What if he hasn't got enough? What methods could Shaheen use to help her work out the prices of these different options?
A2:Shaheen needs to add up all the prices that Earl spends and, later, subtract the Earl's money.

Q3:What does Shaheen need to do to this spreadsheet model so that it is ready to use?
A3:She need check if all the prices and calculations are correct.

Q4:How can Shaheen model to help her with the new costumer? What changes might she need to make to her spreadsheet model?
A4:She might change the computer system in business one.

Q5:How else could Shaheen present this information to make easier to read?
A5:She could use a graph or a chart for make it easier to read.

Do Nessie Exist?

Two-hundred-and-fifty-million years ago, movements in the earth’s crust led to the creation of a huge rift across Scotland that, today, is known as the Great Glen. As the centuries passed, the deeper parts of the Glen filled with water, and it now exists in the form of three main bodies of water: Loch Oich, Loch Lochy, and Loch Ness. For more than a century and a half, they have been connected by the sixty-mile-long Caledonian Canal, which provides a passage for small boats from the North Sea to the Atlantic Ocean.

By far the largest of the three lochs is Loch Ness. Nearly twenty-four miles in length and almost a mile wide, it contains more water than any other British lake and at its deepest point, extends to a mind-boggling depth of almost one thousand feet.

Surrounded by trees, mountains, and filled with water as black as ink, it is little wonder that Loch Ness is viewed by many as both a magical and a sinister location. And as practically anyone who has ever marveled at the mysteries of our world will only be too well aware, the loch is the alleged home of Nessie – arguably the world’s most famous lake monster.

But what, exactly, are the beasts of Loch Ness? That is, not surprisingly, a question that provokes a great deal of controversy. Indeed, just recently over my blog There’s Something in the Woods, I polled the readers on what they thought Nessie – or, rather, the Nessies – might actually be. The results were as mixed as they were intriguing.

Of the many people who voted, a full twenty-five percent believe that the Loch Ness Monsters are plesiosaurs – marine reptiles generally accepted as first having appeared in the early Jurassic era.

On the other hand, six percent were sure that the most likely candidates for whatever lurks within the darkened depths of Loch Ness are monstrously huge, giant eels. Of course, the idea that Nessie is just an eel might disappoint some people, and particularly Scotland’s tourist industry, which pulls in millions of pounds in revenue each year from the sale of Nessie-themed t-shirts, caps, tea-cups, flags and much more.

But, if you’re faced with a thirty-foot-long eel, with a body the thickness of an oil-drum, heading towards you at high speed, you’re probably not going to quibble with the idea that this is a true monster!

Interestingly, more than a quarter of the people polled concluded that there is nothing strange, unusual or monstrous within Loch Ness at all, and that all of the reports can be explained away as misidentifications (of waves, of logs, and of large fish of a known nature, such as sturgeon), hoaxes, and not much else.

I also found it interesting that more than one in ten of those who responded to the poll suggested that rather than being animals of a flesh and blood nature, Loch Ness’ creatures of the deep have nothing less than paranormal or supernatural origins.

The overriding majority of all those who voted, however, concluded that whatever the nature of the beasts of that old, mysterious Scottish loch, they were – in all probability – animals that were definitively real, but that represented creatures presently unknown to mainstream science and zoology.

So, what does all of this tell us? Well, of course, no poll can accurately offer a definitive explanation for anything. But, if nothing else, what the results of this poll do tell us is that even within the realms of monster-hunting and cryptozoology, there are major differences of opinion on what does, or indeed does not, live within the confines of Loch Ness, Scotland. The mystery remains precisely that: A mystery.

Nick Redfern is the author of many books. His new book – Keep Out! – is published in December.