Reflection of the year

In ICT I learned a lot of things. In unit 1.0 I learned how to present information , in unit 2.0 I learned how to select ,refining and using information, in unit 3.0 I learned modelling, in unit 4.0 I learned data handling and in unit 5.0 I learned inputs and outputs of the mechines and how to make flowcharts.Other than those things I learned some keywords that used in ICT classes. ICT IS WONDERFUL!

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

1) Q: How could Mussie and Ellie find out whether older people do more for charity than younger people?

    A: They can look at some charity websites and search information they need or they can make questionnaires to some people to figure out their answers.

2) Q: Why does Mussie think that these data prove him right? Why might Ellie think that these do not prove him right?

A: Mussie think that these data prove him right because they looked at the numbers in the data, and it showed that elder people do more charity than younger people. Ellie thinks that these data do not prove him because this data is only from one charity and this might not be the case for all charities and the amount of money given by young people is going up every year, while the amount given by elder people is going down.

3) Q: What questions should they ask?

A: They should ask questions that can help them to figure out the answer, like ask people’s age and donations that they did or time that they spent on charity.

4) Q: How many questionnaires should they hand out? Who do you think should fill in their questionnaire?

A: I think elder people and young people all need to fill in their questionnaires.

5) Q: 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 there be if the data were typed in incorrectly?

A: They put the data in excel in the computer. They can check it by using the spreadsheet model. They can type carefully and check every time they type. If they typed the data incorrectly, they might come to the wrong conclusion when they look at the data later on.

6) Q: What is the best way for Ellie and Mussie to present their results?

    A: They can present their results by graphs (especially pie chart).

Case Study 3

Case Study 3

1)     Q: What might be the differnences between a computer system set up for gaming compared to one set up for a business to use?

A:Business system wil be more expensive,business system wll be something that have more services about working(printing a lot of documents,saving a lot of documents ,which can help computer not to lose any file.Game system also will be expensive,but its services related to making game progamme and they also have other system or make computer faster .

2)    Q: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 methods could shaheen use to help her work out the prices of these different options?

A:Shaheen can use calculator or Microsoft Excel.

      If he hasn’t got enough he should take out one/two or more ,or book the game so next time he can get it or make another option and make the costs cheaper.

      She could use spreadsheet or calculator.

3)    Q:What does Shaheen need to do this spreadsheet model so that it is ready to use?

A:She  needs to add up the total price of all the items,and includes a cell where she can type in how much the customer has got to spend and adds another formula to work out whether the customer has got enough money, and then she adds a title and some text label and formats the spreadsheet.

4)    Q: How  can Shaheen use the spreadsheet model to help her with the new customer? What changes might she need to make to her spreadsheet model?

A:She open a new one and make a new spreadsheet which is about business systems.

  She needs to write down the different types of systems with the prices.

5)   Q: How else could Shaheen present this information to make it easier to read?

She can make a graph so that can present these information easier.