Q1 How many different things did you count? What were they? In what ways might computers be used to control different things in the super market?
A1 Icounted 6 and they weremicrowave, stellite navigation system, credit card, automatic door, freezer and conveyer belt
Q2Why 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 It is useful to use computers rather than people because computers do the programmed things quick and well. There will be problem like the door doesn't open, products melt.
Q3 Describe the inputs and outputs for the other devices that we have talked so far, How do the super market doors and car park varriers know when to open? Identify other control systems that work automaticallu in this way.
A3 Input alarm clock to ring at the time that the user set. Supermarket doors know it has to open when it sense the thing infront of it. Car park barriers know it has to open when the card is pulled out. Television will turn on when the ray touch the spot.
Q4 What would happen if the instructions were wrong? These instructions assume that the car is in the right place. Wht would happen if the car were not there? How could they stop this happening?
A4 If the intructions were wrong, the machine will move strange. The machine will just break the glass. They could stop this from happening by set machine to only work if it sense a car.
Monday, 11 April 2011
Sunday, 20 February 2011
Case study 4
Kevin and Ryan (Eagles)
Q1: How could Mussie and Ellie find out whether older people do more for charity than younger people?
A1: They can find it out by searching in the search engine.
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 this data prove him right because it is showing that adult donate more money than children do. Ellie thinks that this data prove her right because it’s only one part of the charity and the total amount of children donating are increasing
Q3: What question should they ask?
A3:
Ø Do they donate money to the charity?
Ø How much money did they donate to the charity?
Ø How much time do they spend doing charity work?]
Q4: How many questionnaires should they hand out? Who do you think should fill in their questionnaire?
A4: They have to hand out at least 30 questionnaires. I think students and their parents should fill in their questionnaire.
Q5: Which software could Mussie and Ellie use to put the answer 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 there be if the data were typed in incorrectly?
A5: They could use Microsoft Excel. They can check the questionnaires again. They can see that if they type in the answer carefully. They might come to the wrong conclusion when they look at the data later on.
Q6: What is the best way for Ellie and Mussie to present their results?
A6: They can make a pie chart to present their result
Monday, 10 January 2011
Case study
Q1 What might be the differences between a computer system set up for gaming compared to one set up for a business to use? Thing about the different hardware that might be needed.
A1 The computer set up for gaming might has large screen, good speakers, good DVD drive and high speed modem. The computer set up for business migh not have any of this because they are just use to check emails and they don't really need large screen, good speakers and DVD drive.
Q2 Earl has got ￡ 800 to spend. How can Shaheen work out if he has got enough money? What if he hasn't got enough? What method could Shaheen use to help her work ot the prices of these different options?
A2 If he got enough money, he can just muy it and if he doesn't, he can buy cheaper brand.Shaheen can use spread sheet to help Earl.
Q3 What does Shaheen need to do to this spreadsheet model so that it is ready to use?
A3 Add title and some text labels and formats the spreadsheet.
Q4 How can Shaheen use the spreadsheet model to hel her with the new customer? What changes might she need to make to her spredsheet model?
A4 Make scren smaller,remove speakers, not very fast modem and add printer.
Q5 How else could Shaheen present this information to make it easier to read?
A5 She can make a graph.
A1 The computer set up for gaming might has large screen, good speakers, good DVD drive and high speed modem. The computer set up for business migh not have any of this because they are just use to check emails and they don't really need large screen, good speakers and DVD drive.
Q2 Earl has got ￡ 800 to spend. How can Shaheen work out if he has got enough money? What if he hasn't got enough? What method could Shaheen use to help her work ot the prices of these different options?
A2 If he got enough money, he can just muy it and if he doesn't, he can buy cheaper brand.Shaheen can use spread sheet to help Earl.
Q3 What does Shaheen need to do to this spreadsheet model so that it is ready to use?
A3 Add title and some text labels and formats the spreadsheet.
Q4 How can Shaheen use the spreadsheet model to hel her with the new customer? What changes might she need to make to her spredsheet model?
A4 Make scren smaller,remove speakers, not very fast modem and add printer.
Q5 How else could Shaheen present this information to make it easier to read?
A5 She can make a graph.
Monday, 3 January 2011
Sunday, 12 December 2010
Sunday, 21 November 2010
Saturday, 6 November 2010
Does Nessie exist??
number | Nessie exist. | Nessie doesn’t exist. | sources |
1. | The first recorded sighting of the Loch Ness Monster was in 565 AD by St Columba. In fact St Columba saw the monster twice in that year. | Previous reported sightings of the beast led to speculation that it might be a plesiosaur, a marine reptile which died out with the dinosaurs. | |
picture |  |  | |
2 | sighting of the monster was in 1933 when Mr and Mrs Spicer reported seeing a large animal crossing the road in front of their car. | The team surveyed the waters said to hide Scotland's legendary tourist attraction but found no trace of the monster. |
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