1- define biometrics.
-> a method of identifying individuals based on biological properties. ex: fingerprint DNA matching voice recognition who uses biometrics. airports use scanning technology.
2- list and explain a use of a biometrics system in each area of impact.
-> How biometrics can be used in each area of impact:
-Business and Employment: People who work in businesses can use biometrics to keep their information secure and confidential.
-Education: Teachers can use biometrics to open their accounts and student's grades.
-Health:
-Arts, Entertainment, and Leisure:
-Science and Environment:
-Politics and Government: The government obviously holds a lot of information and "top secret" things, so they'll definitely have to use biometrics if they don't use them already to keep everything secured.
3- explain how one type of biometric system works.
->
3- who approves/disapproves of the use of biometrics?
-> People who approve are people who think that biometrics supports the security and government and other things.
People who are against it are people who think that biometrics will be misused by government and so forth.
4- explain 3 concerns regarding the use of the biometrics system.
->
5- explain 3 advantages to using the biometrics system.
-> Security
6- what is the benefit of using biometrics as shown in the last clip?
->
Tuesday, December 29, 2009
Thursday, December 24, 2009
HW: Multiple Choice Questions and Review Questions 7-9 (pgs. 96-97)
Multiple Choice Questions (pg. 96-97)
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Review Questions 7-9 (pg. 97)
7) What are the advantages of nonimpact printers, such as laser printers, over impact printers? Are there any disadvantages?
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8) Some commonly used peripherals can be described as both input and output devices. Explain.
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9) What is the difference between sequential-access and random-access storage devices? What are the major uses of each?
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Review Questions 7-9 (pg. 97)
7) What are the advantages of nonimpact printers, such as laser printers, over impact printers? Are there any disadvantages?
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8) Some commonly used peripherals can be described as both input and output devices. Explain.
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9) What is the difference between sequential-access and random-access storage devices? What are the major uses of each?
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pg. 97 Review Questions #s 5-6
Review Questions
5) What are the advantages of CRT monitors over LCDs?
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6) Name at least two hardware devices that use LCDs because using a CRT would be impractical.
- Computer screen/Laptop:
- Projector:
5) What are the advantages of CRT monitors over LCDs?
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6) Name at least two hardware devices that use LCDs because using a CRT would be impractical.
- Computer screen/Laptop:
- Projector:
Wednesday, December 23, 2009
Homework: link to article on Peripherals
http://www.articlesphere.com/Article/Office-Peripherals-And-The-Printer/191956
http://www.articlesbase.com/hardware-articles/computer-peripherals-are-essential-components-1146753.html
http://www.articlesbase.com/hardware-articles/computer-peripherals-are-essential-components-1146753.html
Reading Review:
1. List five input devices and three output devices that might be attached to a PC. Describe a typical use for each.
- Input devices include: a mouse, keyboard, joystick, USB drive, and cpu
- Output devices include: the monitor, printer, and hard drive
2. Name and describe three special-purpose input devices people commonly use in public places, such as stores, banks, and libraries.
- A sound card can be used to play music or other sounds and be heard through speakers/headphones. It can play digital recordings made with the PC and a microphone and a program downloaded from the internet. It can be used for entertainment.
- A printer can be used in libraries and places like Kinko's. They're used for many purposes such as educational, entertainment, or other purposes.
- A monitor is used to display texts, images, and other symbols.
3. Many people find that the mouse is impractical for use as a pointing device on a laptop computer. Describe at least three alternatives that are more appropriate.
- Touchscreen
- Keyboard...or voice
- Ball mouse in the middle of the keyboard or mouse pad on the laptop itself.
1. List five input devices and three output devices that might be attached to a PC. Describe a typical use for each.
- Input devices include: a mouse, keyboard, joystick, USB drive, and cpu
- Output devices include: the monitor, printer, and hard drive
2. Name and describe three special-purpose input devices people commonly use in public places, such as stores, banks, and libraries.
- A sound card can be used to play music or other sounds and be heard through speakers/headphones. It can play digital recordings made with the PC and a microphone and a program downloaded from the internet. It can be used for entertainment.
- A printer can be used in libraries and places like Kinko's. They're used for many purposes such as educational, entertainment, or other purposes.
- A monitor is used to display texts, images, and other symbols.
3. Many people find that the mouse is impractical for use as a pointing device on a laptop computer. Describe at least three alternatives that are more appropriate.
- Touchscreen
- Keyboard...or voice
- Ball mouse in the middle of the keyboard or mouse pad on the laptop itself.
Tuesday, December 22, 2009
Criterions G and H
Criterion G:
As we grow older, we have more responsibilities to take care of. For a woman, it would probably be very beneficial for her to learn how to cook, especially if she plans on getting married or living on her own for educational reasons in the near future. Here, we have Saliha, an unexperienced cook. Saliha wants to learn how to cook at least a few meals so that she can get a head start. Then she'll be able to cook at home, experiment on her own, so that by the time she's married or moves out she has it all under control and won't panic or have to eat out every single night. She'll have to learn to be independent one day, and this definitely should help. If she doesn't learn how to cook, she'll either go bankrupt or she'll have to suffer eating her own food.
Criterion H:
I will have my own cooking show (series) dedicated to Saliha. Each episode will have a full meal which includes an appetizer, main dish, side dish, and desert. Some times I'll make a lunch, a breakfast, or even something as simple as a smoothie (which will not be on its own, but most likely with the main meals). I will also be making a recipe book for all the meals that I make on my show so that Saliha (and other people) can keep it, look back at it, and use it eventually. This will help her create her own meals and not always be stuck, not knowing what to cook each night. This project would take a load off her shoulder, and make her feel a little more relaxed every day knowing that she always has a cook book to look back at. And it's not just any kind of cook book. It'll be foods that she's seen me cook and that she's actually tried before, so she'll know what she's doing.
As we grow older, we have more responsibilities to take care of. For a woman, it would probably be very beneficial for her to learn how to cook, especially if she plans on getting married or living on her own for educational reasons in the near future. Here, we have Saliha, an unexperienced cook. Saliha wants to learn how to cook at least a few meals so that she can get a head start. Then she'll be able to cook at home, experiment on her own, so that by the time she's married or moves out she has it all under control and won't panic or have to eat out every single night. She'll have to learn to be independent one day, and this definitely should help. If she doesn't learn how to cook, she'll either go bankrupt or she'll have to suffer eating her own food.
Criterion H:
I will have my own cooking show (series) dedicated to Saliha. Each episode will have a full meal which includes an appetizer, main dish, side dish, and desert. Some times I'll make a lunch, a breakfast, or even something as simple as a smoothie (which will not be on its own, but most likely with the main meals). I will also be making a recipe book for all the meals that I make on my show so that Saliha (and other people) can keep it, look back at it, and use it eventually. This will help her create her own meals and not always be stuck, not knowing what to cook each night. This project would take a load off her shoulder, and make her feel a little more relaxed every day knowing that she always has a cook book to look back at. And it's not just any kind of cook book. It'll be foods that she's seen me cook and that she's actually tried before, so she'll know what she's doing.
Thursday, December 10, 2009
Review Questions
3) The computer will read the number 123.4 as ahuge set of 0's and 1's.
4) Computers can only read the numbers 0 and 1 so the actual text/numbers are translated so the computer can read it.
5) Each is read differently, so not two different softwares can be read the same by one CPU.
6) Architecture can also limit it.
7) Internal Expansion: When the information is already in the computer.
External Expansion: When the information comes from outside of the computer (with either a USB drive or something like it).
8) Multiprocessing is putting multiple CPU's on one single chip.
9) RAM: Random Access Memory is memory that is already built in (to the computer) and no matter how many times the computer shuts down and restarts, it's still there.
ROM: Read Only Memory is memory that is very temporary. It is saved temporarily on the computer, but once the computer is shut down, it is no longer saved.
10) Primary Storage: Things stored into the computer.
Secondary Storage: Things that are stored on something outside of the computer (other than on a computer but can be taken out of and brought into a computer) such as a USB drive, a disk, a hard drive, etc.
4) Computers can only read the numbers 0 and 1 so the actual text/numbers are translated so the computer can read it.
5) Each is read differently, so not two different softwares can be read the same by one CPU.
6) Architecture can also limit it.
7) Internal Expansion: When the information is already in the computer.
External Expansion: When the information comes from outside of the computer (with either a USB drive or something like it).
8) Multiprocessing is putting multiple CPU's on one single chip.
9) RAM: Random Access Memory is memory that is already built in (to the computer) and no matter how many times the computer shuts down and restarts, it's still there.
ROM: Read Only Memory is memory that is very temporary. It is saved temporarily on the computer, but once the computer is shut down, it is no longer saved.
10) Primary Storage: Things stored into the computer.
Secondary Storage: Things that are stored on something outside of the computer (other than on a computer but can be taken out of and brought into a computer) such as a USB drive, a disk, a hard drive, etc.
Tuesday, December 8, 2009
Review from Homework/Reading
1) What are the four basic functions of a computer?
- to store information
- to recieve input
- to produce output
- to proccess information
2) What does CPU stand for?
- CPU stands for Central Processing Unit.
3) Explain what a bit is.
A bit is the smallest unit of information a computer can read.
4) Name two codes used to convert words, etc. into bits.
- ASCII (American Standard Code for Information Interchange)
- Unicode
5) Why is informations stored in some kind of binary format in computers?
- Information is stored in binary format because computers can't read text in its original format.
- to store information
- to recieve input
- to produce output
- to proccess information
2) What does CPU stand for?
- CPU stands for Central Processing Unit.
3) Explain what a bit is.
A bit is the smallest unit of information a computer can read.
4) Name two codes used to convert words, etc. into bits.
- ASCII (American Standard Code for Information Interchange)
- Unicode
5) Why is informations stored in some kind of binary format in computers?
- Information is stored in binary format because computers can't read text in its original format.
Monday, December 7, 2009
Computer Tour: Video Notes
7 main parts to a computer:
Motherboard is the most important part of the computer
cpu is the central processing unit
it runs the software and processes data
it's usually like a fan
RAM: is the random access memory . sits on motherboard. you'll find 1,2 or 3 banks of RAM
stick of memory added to motherboard (in a slot)
video card connects to motherboard in vid card slide
gamers update vid cards every 3 to 6 months
power suppl...all the wires are from there
hard disk holds info even when power is off
old machine: contains personal info. deleting is no enough. you've got to DESTROY the drive. ppl can get through it if they use the right toold
cds and dvds can't handle deep scratches. they keep data and stuff u wanna save on it.
Motherboard is the most important part of the computer
cpu is the central processing unit
it runs the software and processes data
it's usually like a fan
RAM: is the random access memory . sits on motherboard. you'll find 1,2 or 3 banks of RAM
stick of memory added to motherboard (in a slot)
video card connects to motherboard in vid card slide
gamers update vid cards every 3 to 6 months
power suppl...all the wires are from there
hard disk holds info even when power is off
old machine: contains personal info. deleting is no enough. you've got to DESTROY the drive. ppl can get through it if they use the right toold
cds and dvds can't handle deep scratches. they keep data and stuff u wanna save on it.
Tuesday, December 1, 2009
TechReflect (12/1/09)
Discuss the advantages and disadvantages of telecommuting.
Advantages:
1- You can work in your own comforatble area where there may be no distractions.
2- You can wake up any time you want and go to bed whenever you want.
3- You can take breaks whenever you like.
4- You can do things that are not work related on your computer if you just want to "take a break" and check your e-mail or search a funny video or even listen to your own music.
5- You won't have the pressure of someone always watching you.
6- If you need to get to a place ASAP and you need to stop working, you can arrange things more easily.
7- If you need assistance in anything (for someone to actually come and help you with something) you can do it in the comfort of your home and not worrying about distracting people around you.
8- You can blast the music or sing aloud (without worrying about distracting others) if that's what makes you focus or keep you on track.
9- You can be around your family (in case they need you or just want to be with you).
Disadvantages:
1- If you don't choose a good place to work in, you can get distracted VERY easily.
2- You're not in the "working" mood because you ARE in the comfort of your own home, so you might slack a bit.
3- Because you don't feel the pressure of having someone watch over you at all times (or almost at all times) you might go off track and do things that are not work-related whatsoever for too long and not be able to get back to work easily.
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Advantages:
1- You can work in your own comforatble area where there may be no distractions.
2- You can wake up any time you want and go to bed whenever you want.
3- You can take breaks whenever you like.
4- You can do things that are not work related on your computer if you just want to "take a break" and check your e-mail or search a funny video or even listen to your own music.
5- You won't have the pressure of someone always watching you.
6- If you need to get to a place ASAP and you need to stop working, you can arrange things more easily.
7- If you need assistance in anything (for someone to actually come and help you with something) you can do it in the comfort of your home and not worrying about distracting people around you.
8- You can blast the music or sing aloud (without worrying about distracting others) if that's what makes you focus or keep you on track.
9- You can be around your family (in case they need you or just want to be with you).
Disadvantages:
1- If you don't choose a good place to work in, you can get distracted VERY easily.
2- You're not in the "working" mood because you ARE in the comfort of your own home, so you might slack a bit.
3- Because you don't feel the pressure of having someone watch over you at all times (or almost at all times) you might go off track and do things that are not work-related whatsoever for too long and not be able to get back to work easily.
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