Sunday, December 13, 2009
Missing Work: 10/12 Investigate Podcasts
The Podcasts all started out with a theme song, then continued to the announcer who introduced the name of the podcast, the topic of the day, and any guests that would be on the show. Then, they continued to discuss the topic. They end with comments from viewers about past podcasts, then exit with the theme song.
Missing Work: 10/22 Homework
Technology in:
Entertainment: The X-box allows users to access the internet through their consoles and play with other users. www.xbox.com
Publishing: The Espresso Book Machine allows people to publish their books on demand, without going through a publishing company. www.ondemandbooks.com/home.htm
Medicine: Web MD is a website that allows people to check their symptoms and diagnose themselves. It also provides many different articles related to health. www.webmd.com
Airlines: Airlines use computer technology for all kinds of things including scanning bags, and directing air traffic.
Science: Many missions on Mars and other areas in space are conducted through spaceships and satellites. www.nasa.gov/missions/index.html
Entertainment: The X-box allows users to access the internet through their consoles and play with other users. www.xbox.com
Publishing: The Espresso Book Machine allows people to publish their books on demand, without going through a publishing company. www.ondemandbooks.com/home.htm
Medicine: Web MD is a website that allows people to check their symptoms and diagnose themselves. It also provides many different articles related to health. www.webmd.com
Airlines: Airlines use computer technology for all kinds of things including scanning bags, and directing air traffic.
Science: Many missions on Mars and other areas in space are conducted through spaceships and satellites. www.nasa.gov/missions/index.html
Thursday, December 10, 2009
Review Questions
3- ASCII codes are numbers that represent different characters in an 8-bit code. The computer cannot understand numbers by themselves.
4- Information is stored in binary format because a computer does not understand words, numbers, pictures or even letters. The computer can only digest information if it has been broken into binary digits. A bit can have one of two values that are combined together to form codes that store the information.
5- You cannot run Macintosh software on a PC with an Intel Pentium 4 CPU because not all software is compatible with every CPU. An Intel Pentium 4 CPU cannot decipher Macintosh instructions.
6- Another thing that determines CPU processing speed is the CPU's word size, or how many bits in can process at one time. Also, to increase the speed, manufacturers have been offering multicore processors, multiple CPUs on a single chip.
7- It is important that computers support both internal and external expansion because it enables humans to communicate with computers through keyboards and mice and such. External expansion can be used to customize the computer or make it run faster.
8- Symmetrical multiprocessing can increase a computer's performance by making the computer run faster. As the clock speed increases, the heat generated by the CPU increases as well, making larger fans a necessity. This takes up space. Using more than one processor simultaneously means that the computer can process more bits at the same time, making the computer much more effecient and faster at performing operations.
9- RAM is the Random Access Memory. The RAM is divided into many smaller compartments on which information is stored randomly. When commanded to retrieve the information, the computer quickly does so. However, when the power goes off, the computer instantly forgets everything stored in the RAM. ROM is read-only memory. The information on the ROM was etched onto it when it was manufactured. No new information can be written to it. Information can only be read from it. It cannot be changed except by replacing the ROM chip.
10- Primary storage is a device where computer data is stored during processing. An example is the RAM and ROM. The secondary storage is where data for software is stored. Examples are CD-ROMs, floppy disks, and flash drives.
4- Information is stored in binary format because a computer does not understand words, numbers, pictures or even letters. The computer can only digest information if it has been broken into binary digits. A bit can have one of two values that are combined together to form codes that store the information.
5- You cannot run Macintosh software on a PC with an Intel Pentium 4 CPU because not all software is compatible with every CPU. An Intel Pentium 4 CPU cannot decipher Macintosh instructions.
6- Another thing that determines CPU processing speed is the CPU's word size, or how many bits in can process at one time. Also, to increase the speed, manufacturers have been offering multicore processors, multiple CPUs on a single chip.
7- It is important that computers support both internal and external expansion because it enables humans to communicate with computers through keyboards and mice and such. External expansion can be used to customize the computer or make it run faster.
8- Symmetrical multiprocessing can increase a computer's performance by making the computer run faster. As the clock speed increases, the heat generated by the CPU increases as well, making larger fans a necessity. This takes up space. Using more than one processor simultaneously means that the computer can process more bits at the same time, making the computer much more effecient and faster at performing operations.
9- RAM is the Random Access Memory. The RAM is divided into many smaller compartments on which information is stored randomly. When commanded to retrieve the information, the computer quickly does so. However, when the power goes off, the computer instantly forgets everything stored in the RAM. ROM is read-only memory. The information on the ROM was etched onto it when it was manufactured. No new information can be written to it. Information can only be read from it. It cannot be changed except by replacing the ROM chip.
10- Primary storage is a device where computer data is stored during processing. An example is the RAM and ROM. The secondary storage is where data for software is stored. Examples are CD-ROMs, floppy disks, and flash drives.
Tuesday, December 8, 2009
Functions of a Computer
What are the four basic functions of a computer?
The four basic functions of the computer are the recieve input, produce output, process information and store information.
What does CPU stand for?
CPU stands for Central Processing Unit.
Explain what a bit is.
A bit is binary digit. It is the smallest unit of information a computer can process. It can have two values, 0 and 1. Different combinations of these two numbers store information.
Name two codes used to convert words, etc. into bits.
ASCII and Unicode are both used to convert words into bits. ASCII uses 256 patterns that make codes for the 26 letters, 10 digits, and a few special characters. However, it cannot accomodate other languages, so Unicode was developed. Unicode uses around 65,000 unique characters that support all different languages.
Why is informations stored in some kind of binary format in computers?
Computers cannot understand words, pictures or anything of that sort. They only understand information in small units. For that reason, information is stored in the bits, the numbers 1 and 0. These two numbers are combined together to form many different combinations with different information on them.
The four basic functions of the computer are the recieve input, produce output, process information and store information.
What does CPU stand for?
CPU stands for Central Processing Unit.
Explain what a bit is.
A bit is binary digit. It is the smallest unit of information a computer can process. It can have two values, 0 and 1. Different combinations of these two numbers store information.
Name two codes used to convert words, etc. into bits.
ASCII and Unicode are both used to convert words into bits. ASCII uses 256 patterns that make codes for the 26 letters, 10 digits, and a few special characters. However, it cannot accomodate other languages, so Unicode was developed. Unicode uses around 65,000 unique characters that support all different languages.
Why is informations stored in some kind of binary format in computers?
Computers cannot understand words, pictures or anything of that sort. They only understand information in small units. For that reason, information is stored in the bits, the numbers 1 and 0. These two numbers are combined together to form many different combinations with different information on them.
Monday, December 7, 2009
Parts of a Computer
Parts of a Computer:
Motherboard: every part either sits on it or is connected to it
CPU: Centrul Processing Unit brain of computer, runs software and processes data
RAM: Random Access Memory, holds data and software currently running
Video Card: creates images that appear on monitor
Power Supply: supplies power that computer needs
Hard disk: holds all information, even when power off. When computer is turned off, all data is loaded onto computer for you to access.
Optical Drive: uses laser to read and write CDs and DVDs
Motherboard: every part either sits on it or is connected to it
CPU: Centrul Processing Unit brain of computer, runs software and processes data
RAM: Random Access Memory, holds data and software currently running
Video Card: creates images that appear on monitor
Power Supply: supplies power that computer needs
Hard disk: holds all information, even when power off. When computer is turned off, all data is loaded onto computer for you to access.
Optical Drive: uses laser to read and write CDs and DVDs
Thursday, December 3, 2009
Project Proposal
Project Title:
Nawal's Fashion Gallery
Client:
Nawal
Criterion G:
Nawal designs clothes. However, nobody is able to see these designs. I would like to do a project that would be her designs more accessible to other people.
Criterion H:
Two ways that I can do this are by making a website or a video presentation with her designs. I can use a web design program to design a website that displays Nawal's designs with a description. For the video presentation, I can display the sketches that Nawal drew as well as an outfit or two that she has made, and let her show them off. This could also possibly be viewed by colleges when she comes to apply to a fashion one.
Nawal's Fashion Gallery
Client:
Nawal
Criterion G:
Nawal designs clothes. However, nobody is able to see these designs. I would like to do a project that would be her designs more accessible to other people.
Criterion H:
Two ways that I can do this are by making a website or a video presentation with her designs. I can use a web design program to design a website that displays Nawal's designs with a description. For the video presentation, I can display the sketches that Nawal drew as well as an outfit or two that she has made, and let her show them off. This could also possibly be viewed by colleges when she comes to apply to a fashion one.
Tuesday, December 1, 2009
TechReflect: Telecommuting
Discuss the advantages and disadvantages of telecommuting.
Telecommuting has several advantages and disadvantages. Some of the advantages of telecommuting include increased work productivity, environment protection and more flexibility. Telecommuting is basically working from home and connecting to company computers by modem. Telecommunication reduces traffic on the road and makes for less car accidents. Pollution decreases and energy is saved. Telecommunication also allows for a more flexible schedule. The worker can work at a time that suits him and that he is most productive at, instead of adhering to a strict schedule. This is also beneficial to parents with young children. Telecommuting also has disadvantages. The worker may get distracted at home with children, chores and errands and may not get the work done. On the flip side, they may spend all their time working and not spend time with their families and complete chores and errands. Also, if several workers are telecommuting, ties to the company and to co-workers may be weakened. When working at home, they are off their boss's radar and the boss may not remember him/her come promotion time. Meetings will be harder to hold. Not everybody is comfortable working at home.
Telecommuting has several advantages and disadvantages. Some of the advantages of telecommuting include increased work productivity, environment protection and more flexibility. Telecommuting is basically working from home and connecting to company computers by modem. Telecommunication reduces traffic on the road and makes for less car accidents. Pollution decreases and energy is saved. Telecommunication also allows for a more flexible schedule. The worker can work at a time that suits him and that he is most productive at, instead of adhering to a strict schedule. This is also beneficial to parents with young children. Telecommuting also has disadvantages. The worker may get distracted at home with children, chores and errands and may not get the work done. On the flip side, they may spend all their time working and not spend time with their families and complete chores and errands. Also, if several workers are telecommuting, ties to the company and to co-workers may be weakened. When working at home, they are off their boss's radar and the boss may not remember him/her come promotion time. Meetings will be harder to hold. Not everybody is comfortable working at home.
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