Monday, February 2, 2009
Thursday, January 22, 2009
IT homework for January 23rd
Pgs. 136-1371.
1.) Electronic temperature sensors connected to a computer system are able to measure to an accuracy of atleast 0.1 degrees
2.)The sensor which is built into an electronic circuit generates varying electrical signals as the quantity cahnges.
pgs. 138-139
1.) -What do you need to measure?
- How often do the readings need to be recorded?
- Which sensors will you need?
2.) There are many different kind of sensors. But some examples are, temperature sensor, a light sensor and a humidity sensor
3.) Because it ensures that as soon as you connect up the system and start taking measurements, you are capturing the real values. If the system was not calibrated the numbers the computer recieves will be meaningless
4.) No, because it would destory the calibration and distort the values
pg. 140-141
1.) Visual data logging systems can be used to show the effects of such things as coastal erosion, changes in vegetation, agricultural development, land temperatures and urban growth. They are located in remote areas
2.)- agricultural development
- land temperatures
4.) feed bak is adjusting the outbputs according to the inputs. An example is when the temperature sensor says it is too cold the system turns on the heaters and closes the ventilators. This will raise the temperature and the sensor will tell the system that the temperature is rising
1.) Electronic temperature sensors connected to a computer system are able to measure to an accuracy of atleast 0.1 degrees
2.)The sensor which is built into an electronic circuit generates varying electrical signals as the quantity cahnges.
pgs. 138-139
1.) -What do you need to measure?
- How often do the readings need to be recorded?
- Which sensors will you need?
2.) There are many different kind of sensors. But some examples are, temperature sensor, a light sensor and a humidity sensor
3.) Because it ensures that as soon as you connect up the system and start taking measurements, you are capturing the real values. If the system was not calibrated the numbers the computer recieves will be meaningless
4.) No, because it would destory the calibration and distort the values
pg. 140-141
1.) Visual data logging systems can be used to show the effects of such things as coastal erosion, changes in vegetation, agricultural development, land temperatures and urban growth. They are located in remote areas
2.)- agricultural development
- land temperatures
4.) feed bak is adjusting the outbputs according to the inputs. An example is when the temperature sensor says it is too cold the system turns on the heaters and closes the ventilators. This will raise the temperature and the sensor will tell the system that the temperature is rising
Monday, December 15, 2008
IT Homework for December th 2008
Pgs. 156-1571
What is the difference between application and language software (4 pts.)?
2) Pg. 157 #1 (2 pts. each)
3) Pg. 157 #2 (3 pts.)
Pgs. 158-1591
What is meant by high level language (3pts?)
2) Pg. 159 #1 (1 pt.)3) Pg. 159 #2 (1 pt.)4) Pg. 159 #3 (4 pts.)
Pgs. 160-1611)
Pg. 161 #1 (1 pt.)
2) Pg. 161 #2 (1 pt.)3)
What is a plug-in (2pts.)?
4) Pg. 161 #3 (2 pts.)
1.) An application software is a software that i nstructs a computer to carry out a specific task. and a language software is something that creates both system and application softwares.
2.) Default setting is when the appilcation software is already installed and it is set up in the way that the sowtware company thinks most people will want. A template is a predesigned file that sets up a structure for a document. Expert System is an application that performs a task that would otherwise be performed by a human expert. Artificial Intelligence is the part of computer science that that is concerned with getting computers behave like humans.
3.) Medicine - to diagnose the illness
Buying and selling of company shares - to choose the best shares to invest in
House buying - to choose the best mortage
Pgs. 158-1591
1.) examples of highlevel language is Pascal, Visual Basic and Java. These are called high level because they use keywords similar to english and are easier to write than low level languages.
2.) COBOL(Common Buisness - Oriented Language) is a high level language used in buisness programs
3.) The reason why Visual Basic is popular is because it can use predefined libraries of code that can be adapted for their application
4.) A macro is a series of commands that a program can perform automatically. you can use it to sort the class between the surname and the class. To sort out different categories
Pgs. 160-1611
1.) Java is a good computer language because they are able to access any content on the web pages
2.) An applet ensures that everyone can access the web content a small java application.
3.) It is a small piece of software that plugs into larger application to add more features.
4.) The advantage is that the content and layout of a document is preserved
What is the difference between application and language software (4 pts.)?
2) Pg. 157 #1 (2 pts. each)
3) Pg. 157 #2 (3 pts.)
Pgs. 158-1591
What is meant by high level language (3pts?)
2) Pg. 159 #1 (1 pt.)3) Pg. 159 #2 (1 pt.)4) Pg. 159 #3 (4 pts.)
Pgs. 160-1611)
Pg. 161 #1 (1 pt.)
2) Pg. 161 #2 (1 pt.)3)
What is a plug-in (2pts.)?
4) Pg. 161 #3 (2 pts.)
1.) An application software is a software that i nstructs a computer to carry out a specific task. and a language software is something that creates both system and application softwares.
2.) Default setting is when the appilcation software is already installed and it is set up in the way that the sowtware company thinks most people will want. A template is a predesigned file that sets up a structure for a document. Expert System is an application that performs a task that would otherwise be performed by a human expert. Artificial Intelligence is the part of computer science that that is concerned with getting computers behave like humans.
3.) Medicine - to diagnose the illness
Buying and selling of company shares - to choose the best shares to invest in
House buying - to choose the best mortage
Pgs. 158-1591
1.) examples of highlevel language is Pascal, Visual Basic and Java. These are called high level because they use keywords similar to english and are easier to write than low level languages.
2.) COBOL(Common Buisness - Oriented Language) is a high level language used in buisness programs
3.) The reason why Visual Basic is popular is because it can use predefined libraries of code that can be adapted for their application
4.) A macro is a series of commands that a program can perform automatically. you can use it to sort the class between the surname and the class. To sort out different categories
Pgs. 160-1611
1.) Java is a good computer language because they are able to access any content on the web pages
2.) An applet ensures that everyone can access the web content a small java application.
3.) It is a small piece of software that plugs into larger application to add more features.
4.) The advantage is that the content and layout of a document is preserved
Monday, December 1, 2008
Homework for Tuesday December 2nd 2008
pg. 126-127:
1. Explain what is a computer control system. (3 pts)
2. Give one example of a control system found in the reading and describe how it works. (3 pts)
pg. 128-129:
1. What does a control system consist of? (6 pts)
2. Explain what is meant by embedded controller. (4 pts)
3. Why are control systems considered real-time systems? (3 pts)
4. In your own words explain how control systems have made an impact on our lives. (4 pts)
pg. 130-131:
1. List 6 questions that must be answered when designing a control system. (6 pts)
2. For what purpose would you use a flow chart when designing a control system? (2 pts)
3. Describe two approaches to control programming which most students use. (6pts)
Pg. 126-127
1.) a computer control system is seen everywhere its just that you dont notice. Computer systems do not necessarily posses the features of a regular computer with a monitor and keyboard. A good example of a computer control system is the traffic lights. The control system is all about making the devices do what we want them to do in the right order.
2.) The central heating system is one example. the heat in the system, is generated by the radiators is then fedback to the input of the sensors to stop the rooms from getting too hot.
pg. 128-129
1.) A control system system consists of some sensors which input information, a processing unit(computer) which decides how to respondd to the inputs, and output devices which do what is required.
2.) An embedded controller is the proccessing unit program in electric circuits. They have only one program in their electronics to do the job they were designed to do. It makes them much cheaper to make because they do not need disk storage divices such as a keyboard, a mouse or a screen.
3.) They are known as real-time systems because they rely on the enviornmental feedback in order to work and get their job done. They need to be able to respond quickly to the current conditions as described by the sensors and to let the processing unit take the appropriate action.
4.) I think that the control systems have impacted our lives. People lost their jobs but at the same time machines were made and now rather than doing the repetitive tasks themselves they now keep running machinery. the speed and effiency of the machines are higher.
pg.130-131
1.) the 6 questions are
-What need to be done?
-What outputs are required from the system?
-Which output devices do you use?
-How many devices do you need?
-Which sensors do you use?
- what will the system need to know about what is going on so that it can make sensible decisions about what to make the output devices do
2.) You will use a flow chart for the visual approach. You will build your working ansewwr by constructing a flow chart. These commands may set the pattern of ons and offs you want on the outpput. Also to instruct the computer to look aat sensor to see what is happening or to make some decisions based on what it had just found out about the state of the system.
3.) there is the visual apporoach and the others use a programming language. These often work like the LOGO programming. The have words or commands that make the computer to do particular thingss. they also let you build procedures(functional blocks of programming which can then be linked together to create a larger, more complex control program sequence)
1. Explain what is a computer control system. (3 pts)
2. Give one example of a control system found in the reading and describe how it works. (3 pts)
pg. 128-129:
1. What does a control system consist of? (6 pts)
2. Explain what is meant by embedded controller. (4 pts)
3. Why are control systems considered real-time systems? (3 pts)
4. In your own words explain how control systems have made an impact on our lives. (4 pts)
pg. 130-131:
1. List 6 questions that must be answered when designing a control system. (6 pts)
2. For what purpose would you use a flow chart when designing a control system? (2 pts)
3. Describe two approaches to control programming which most students use. (6pts)
Pg. 126-127
1.) a computer control system is seen everywhere its just that you dont notice. Computer systems do not necessarily posses the features of a regular computer with a monitor and keyboard. A good example of a computer control system is the traffic lights. The control system is all about making the devices do what we want them to do in the right order.
2.) The central heating system is one example. the heat in the system, is generated by the radiators is then fedback to the input of the sensors to stop the rooms from getting too hot.
pg. 128-129
1.) A control system system consists of some sensors which input information, a processing unit(computer) which decides how to respondd to the inputs, and output devices which do what is required.
2.) An embedded controller is the proccessing unit program in electric circuits. They have only one program in their electronics to do the job they were designed to do. It makes them much cheaper to make because they do not need disk storage divices such as a keyboard, a mouse or a screen.
3.) They are known as real-time systems because they rely on the enviornmental feedback in order to work and get their job done. They need to be able to respond quickly to the current conditions as described by the sensors and to let the processing unit take the appropriate action.
4.) I think that the control systems have impacted our lives. People lost their jobs but at the same time machines were made and now rather than doing the repetitive tasks themselves they now keep running machinery. the speed and effiency of the machines are higher.
pg.130-131
1.) the 6 questions are
-What need to be done?
-What outputs are required from the system?
-Which output devices do you use?
-How many devices do you need?
-Which sensors do you use?
- what will the system need to know about what is going on so that it can make sensible decisions about what to make the output devices do
2.) You will use a flow chart for the visual approach. You will build your working ansewwr by constructing a flow chart. These commands may set the pattern of ons and offs you want on the outpput. Also to instruct the computer to look aat sensor to see what is happening or to make some decisions based on what it had just found out about the state of the system.
3.) there is the visual apporoach and the others use a programming language. These often work like the LOGO programming. The have words or commands that make the computer to do particular thingss. they also let you build procedures(functional blocks of programming which can then be linked together to create a larger, more complex control program sequence)
Thursday, November 20, 2008
IT Homework for November 21st 2008
pg.182-183
1.) List 5 examples of potential health problems linked to using IT equipment for long periods and give 3 most important points to consider in order to avoid each of the first three mentioned potential problems.
-Repetitive Strain Injury (RSI) which occurs when you use the mouse or type for a long period of time
-Back Problems may also occur on having the bad equipment
- A long period of staring at the screen may cause Eye problems. Also being too close to the computer, font size and color may affect your eyes.
- Stress is caused by people who work full time during their job without getting enough rest. Buisness workers oftenly deal with stress.
- The excessive use of comptuers by pregnant woman may effect the baby by the electromagnetic radiation
RSI-
1.) Take rests, stand up and stretch.
2.) Less use of mouse and keyboard
3.) Less use of the computer its self.
Back Problems-
1.) Buy/use a soft office chair not the hard ones
2.) Stretches
3.) Be in a good position at all times while working
Eye Problems-
1.) Get your eyes away from the screen. Not to close
2.) rest your eyes every 30 minutes.
3.) Try not to stay on computer for more than 1 hour per day. Unless for work.
1.) List 5 examples of potential health problems linked to using IT equipment for long periods and give 3 most important points to consider in order to avoid each of the first three mentioned potential problems.
-Repetitive Strain Injury (RSI) which occurs when you use the mouse or type for a long period of time
-Back Problems may also occur on having the bad equipment
- A long period of staring at the screen may cause Eye problems. Also being too close to the computer, font size and color may affect your eyes.
- Stress is caused by people who work full time during their job without getting enough rest. Buisness workers oftenly deal with stress.
- The excessive use of comptuers by pregnant woman may effect the baby by the electromagnetic radiation
RSI-
1.) Take rests, stand up and stretch.
2.) Less use of mouse and keyboard
3.) Less use of the computer its self.
Back Problems-
1.) Buy/use a soft office chair not the hard ones
2.) Stretches
3.) Be in a good position at all times while working
Eye Problems-
1.) Get your eyes away from the screen. Not to close
2.) rest your eyes every 30 minutes.
3.) Try not to stay on computer for more than 1 hour per day. Unless for work.
Monday, November 3, 2008
IT Homework for November 4th 2008
Questions from video #1-3
1.) What are the problems associated with Technology in the workplace?
People now in days take up too much time on computer, phones and emails. Everyone
who has a phone checks their email 59% of the time. It doesnt ditract them from their homelife but also their worklife. You have the choice of technology taking over you or you taking over the technology
2.) What are 3 ways to reduce this stress?
-you can turn off the email notifications on desktop/phone
-check the email when you want to
-set the phones computers aside you can get to it but not straight away
3.) What are the positives to technology in the workplace?
It can make you more productive during the work day. Some people actually have 2 monitors ont their desk and this shows and raises the productivity by 20%. If you do really good you can get a leg up in your job.
1.) What are the problems associated with Technology in the workplace?
People now in days take up too much time on computer, phones and emails. Everyone
who has a phone checks their email 59% of the time. It doesnt ditract them from their homelife but also their worklife. You have the choice of technology taking over you or you taking over the technology
2.) What are 3 ways to reduce this stress?
-you can turn off the email notifications on desktop/phone
-check the email when you want to
-set the phones computers aside you can get to it but not straight away
3.) What are the positives to technology in the workplace?
It can make you more productive during the work day. Some people actually have 2 monitors ont their desk and this shows and raises the productivity by 20%. If you do really good you can get a leg up in your job.
IT Homework for November 4th 2008
pg. 180-181 #1-2
1.) Write a 4-6 line summary (in your own words) for each of the 3 subheadings: Economic Effects, Social Effects, and Environmental Effects of IT.
Economic Effects:
Life in the Economic ways have definently been easier. It is faster, easier and more reliant. But the information systems have also led to an increase in other types of jobs. Since the technology is so advanced now in days people who try to get new jobs include packing boxes and sweeping floors. The government evidence would suggest that the use of information systems has created more jobs than have been lost by its introduction.
Social Effects:
The social affects has led to more efficient ways of working and also it decreased the hours that people have to work. Which leads to people spending time on leisure purisuits. There was an arguenment on how young people spend to much time on computers playing computer games. People argue that the long uses are decreasing the communication levels. Although others argue that playing video games online can help and develop problem-solving sills and encourage collaboration and team work.
Enviornmental Effects:
Enviornmental effects are a big part too. The computers have increased a level in electricity consumption while in the other hand electricity and other forms of energy has been reduced as computers carefully control the air conditioning and heating systems. Information systems have teleworking enabled from the house. Which means less travel to and from work and therefore a reduction in traffic polution.
2.) Answer 2 of the questions raised under the legal, ethical & moral effects section, giving your opinion on each.
How far should the law go in giving the police access to everyones personal data or emails in order to fight crime or to defend national security?
I think police should have some access to everyones personal data. But it shall be only to a certain extent. Giving away too much information might include private information so only to an extent where you can find for example where you are living name adress.
How far should established and new technologies, such as closed circuit television and microchip smart cards be used to monitor peoples activities?
Same as the answer above, i dont think that they need to know every little information. You can have small monitoring cameras just incase people steal things from stores. But other than that i dont think there is a particular reason for having microchip smart cards.
1.) Write a 4-6 line summary (in your own words) for each of the 3 subheadings: Economic Effects, Social Effects, and Environmental Effects of IT.
Economic Effects:
Life in the Economic ways have definently been easier. It is faster, easier and more reliant. But the information systems have also led to an increase in other types of jobs. Since the technology is so advanced now in days people who try to get new jobs include packing boxes and sweeping floors. The government evidence would suggest that the use of information systems has created more jobs than have been lost by its introduction.
Social Effects:
The social affects has led to more efficient ways of working and also it decreased the hours that people have to work. Which leads to people spending time on leisure purisuits. There was an arguenment on how young people spend to much time on computers playing computer games. People argue that the long uses are decreasing the communication levels. Although others argue that playing video games online can help and develop problem-solving sills and encourage collaboration and team work.
Enviornmental Effects:
Enviornmental effects are a big part too. The computers have increased a level in electricity consumption while in the other hand electricity and other forms of energy has been reduced as computers carefully control the air conditioning and heating systems. Information systems have teleworking enabled from the house. Which means less travel to and from work and therefore a reduction in traffic polution.
2.) Answer 2 of the questions raised under the legal, ethical & moral effects section, giving your opinion on each.
How far should the law go in giving the police access to everyones personal data or emails in order to fight crime or to defend national security?
I think police should have some access to everyones personal data. But it shall be only to a certain extent. Giving away too much information might include private information so only to an extent where you can find for example where you are living name adress.
How far should established and new technologies, such as closed circuit television and microchip smart cards be used to monitor peoples activities?
Same as the answer above, i dont think that they need to know every little information. You can have small monitoring cameras just incase people steal things from stores. But other than that i dont think there is a particular reason for having microchip smart cards.
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