Monday, 7 June 2010
Thursday, 3 June 2010
Sunday, 16 May 2010
module 5.0 control
1.Q: how many different things did you count? what were they? in what ways might computers be used to control different things in the supermarket?
A: I count 5 things, it is the time, card numbers, robot, price, and supermarket. We can use computer for check where food should be
2.Q:why is it useful to use computer rather than people to control things? what problems might there be if any of the computer systems fall in the supermarket?
A:computer is easy to count something and it helps to check something easier. If there is a small error it will be very hard to do.
3.Q:descibe the inputs fot the aother device that we have talked about so far. how do the supermarket doors and car park barriers know when to open? indentify other control systems that work automatically in this way.
A: in fact, quiet a lot of devices use buttons or keypads of some sort as of inputting instructions. After that, the device makes decisions about what it should do next.
4.Q:what would happen if the instrtuctions 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?
A: maybe its not going to work make car accident will happen or there will be quiet big problem. It will be hard to find they have to make new information system.
A: I count 5 things, it is the time, card numbers, robot, price, and supermarket. We can use computer for check where food should be
2.Q:why is it useful to use computer rather than people to control things? what problems might there be if any of the computer systems fall in the supermarket?
A:computer is easy to count something and it helps to check something easier. If there is a small error it will be very hard to do.
3.Q:descibe the inputs fot the aother device that we have talked about so far. how do the supermarket doors and car park barriers know when to open? indentify other control systems that work automatically in this way.
A: in fact, quiet a lot of devices use buttons or keypads of some sort as of inputting instructions. After that, the device makes decisions about what it should do next.
4.Q:what would happen if the instrtuctions 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?
A: maybe its not going to work make car accident will happen or there will be quiet big problem. It will be hard to find they have to make new information system.
Wednesday, 5 May 2010
Sunday, 25 April 2010
Wednesday, 21 April 2010
4.4
1 How many of them are red?
8 of them are red
2 How many of them are blue?
15 of them are blue
3 How many of them are happy?
14 of them are happy
4 How many of them are sad?
16 of them are sad
5 How many of them are red AND sad?
4 of them are sad and red
6 How many of them are blue AND have black eyes?
8 of them are blue and have black eyes
7 How many of them are green AND have white eyes AND are sad?
3 of them are green and have white eyes and sad
8 How many of them are blue OR green?
22 of them are blue or green
9 How many of them are happy OR have white eyes?
22 of them are happy or have white eyes
10 How many of them are happy OR have black eyes OR are blue?
27 of them are happy or have black eyes or are blue
Thursday, 11 March 2010
4.0 DATA HANDLING
1. older people pay more charity than young people
2.because this data is only from one charity not all the charity in HK
3.is this charity is asked by a lot of people or company
4.Mussie&Ellie hand out 30copies
5.could use spreadwork
6.present there results
2.because this data is only from one charity not all the charity in HK
3.is this charity is asked by a lot of people or company
4.Mussie&Ellie hand out 30copies
5.could use spreadwork
6.present there results
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