Filed under Computer & Technology by admin on August 23, 2009 at 13:15
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Wireless networks use radio waves instead of cables to transmit data between computers. Here’s how:
Binary code: 0 and 1
It is well known that computers transmit digital information, using binary: ones and zeros. It reflects radio waves, because the 1 and 0 can be represented by different types of beeps. These beeps are so fast, they are beyond the reach of human hearing.
Morse Code: dots and stripes
It works like Morse code, which is a means of transmission of the alphabet over radio waves using dots (short beeps) and dashes (long beep). Morse code was used manually by telegraph years to get information from 1 place to another very quickly. More importantly for this example, however, is a binary system as a system.
Wireless networks, then, can be regarded as a Morse code for computers. Connecting to a combination of transmitter and radio receiver and the computer is capable of sending the equivalent of dots and dashes (bits, speak) to get your data by then.
Wavelengths and frequencies
Wonder how it is possible that the computer can send and receive data at high speed without becoming garbled nonsense. The key for wireless networks is how you have around this problem.
First, wireless transmissions are sent at very high frequencies, allowing more data to be transmitted per second. Most wireless connections use a frequency of 2.4 gigahertz (2.4 billion cycles per second) – a frequency similar to mobile phones and microwave ovens. However, this high frequency produces a wavelength is very short, so wireless networking is effective only over short distances.
Wireless networks also use a technique called “frequency hopping”. This use dozens of frequencies, and constantly switch between them. This makes wireless networks more immune to interference from other radio signals that are transmitted over a single frequency.
Internet access points
The final step is to provide wireless Internet access for each computer on the network. This is done by a piece of equipment called a wireless access point. An access point is more expensive than a wireless card for 1 computer, because it contains radio able to communicate with about 100 computers to share Internet access at home. Dedicated access points are required for large networks. With only a few computers, you can use as of 1 access point, or use a wireless router.
Industry standards
Wireless equipment from different manufacturers can work together to manage these complex because there are rules that guide the production of all wireless devices. These standards are technically known as 802.11. Thanks to industry compliance with these standards, wireless networking is easy to use and affordable today.
Wireless is easy to use
If all this talk radio industry has worried – relax. Wireless equipment and software to handle all this automatically, without user intervention. Wireless networks, for all its complicated ability, is much simpler to use than you might expect.
Wireless networks use radio waves instead of cables to transmit data between computers. Here’s how:
Binary code: 0 and 1
It is well known that computers transmit digital information, using binary: ones and zeros. It reflects radio waves, because the 1 and 0 can be represented by different types of beeps. These beeps are so fast, they are beyond the reach of human hearing.
Morse Code: dots and stripes (more…)
Filed under Computer & Technology by admin on August 16, 2009 at 11:28
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As the waiting list is difficult, and you need the set of keys to open the door to your dream program. The truth is that even with these keys, but there is no guarantee that the lock works. But this keychain has the critical pieces of metal, you’ll need to turn that lock.
First, a word of introduction: Realize that receiving a letter on the waiting list means that the conditions of admission. Pass. You’re probably on the waiting list (not admitted) because they have already admitted applicants with your profile and want diversity in the classroom. Or that their qualifications are impressive, but to find someone else.
Now we consider the keychain. has become an essential prerequisite for any efficient modern-day it enables employees to work effectively as a team through the exchange of information, access the same database and be in constant contact . For a network to give the best results, a large number of detailed planning and foresight is required before installation.
First, an organization must clearly define its requirements – how many people use the network, which is used locally (within the office) and the number may need to access it remotely (from another location), the number of computers and other devices (servers, printers, scanners) is connected to the network, what are the needs of different departments and will be in charge of the operation / management of the network. It also helps if you can predict the direction that society in the near future so potential growth can be a factor in the team when the network.
The technology must also be removed in advance – hardware, software, servers, switches, backup devices, cables and network operating system. Make sure you have the proper permits to run the software on all your machines before installing a computer network. With the installation of the network should proceed, the construction of a technical support staff, either within their own organization or external consultants. Delegating clear responsibility for managing the network. Before installing the network, you must also choose the security mechanism to protect corporate data and keep viruses at bay.
The transition to a new computer or upgrade the network in May cause some problems. To minimize the risk of confusion, the company might need to train their staff to become familiar with the new system. Careful planning to a large extent prevent crises, such as a shutdown of the system and network failure.
As the waiting list is difficult, and you need the set of keys to open the door to your dream program. The truth is that even with these keys, but there is no guarantee that the lock works. But this keychain has the critical pieces of metal, you’ll need to turn that lock.
First, a word of introduction: Realize that receiving a letter on the waiting list means that the conditions of admission. Pass. You’re probably on the waiting list (not admitted) because they have already admitted applicants with your profile and want diversity in the classroom. Or that their qualifications are impressive, but to find someone else. (more…)
Filed under Computer & Technology by admin on August 13, 2009 at 17:43
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If you have two or more computers at home, all of them are wired to provide the resources, then you have a computer on the network. Any person wishing to use a computer, which almost all are aware that the data is important. There are several options for storing data for May, not for the computer. The first step to decide how to contact your network data storage is the kind of backup that you must use. Normally, a backup is a copy of all files, like a snapshot of time, and then even backup copies of these changes when they occur. The other choice is, where are the backups.
Here, There and Everywhere (more…)
Filed under Computer & Technology by admin on August 1, 2009 at 13:01
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If you have two or more computers at home that are networked to share resources, then you have a computer on the network. Anyone who uses a computer, which includes almost all the world should be aware of the need to safeguard important data. There are options available for data storage network that may not be available for the same team. The first step in deciding how to comply with its network of data storage is to determine the type of backup to use. Usually is performed by making a backup copy of all existing files, as a snapshot in time, and then add the backup of these changes as they occur. The other decision to make is that to maintain backups.
Here, There and Everywhere
If you can not store a large part of your network, you may be able to manage their network data storage on the DVD project. With a bit of information they need backup, you can use rewritable DVD and make a complete copy of all the necessary files. If one or more computers on your network that is used primarily for Internet use, email, web browsing and games, then the need for backing up data is limited. The advantage of this type of network data storage is that you have control over whether or not to save a file and choose how often to backup. The drawback that many people do not update your backups frequently, and often the units are lost or damaged due to lack of storage practices.
The next step is to create a server to store the backup files for all computers on the network. A server is a single hard disk, and the software is available for small home networks. There is also a network storage (NAS) devices that act as a dedicated backup server. The advantage here is that software can be configured to backup procedures at regular intervals automatically. The disadvantage is that the backups are in the same place as the computers, and May are the victims of any disaster, it is necessary to use the backup.
Finally, there are services to distance automatically uses the Internet for home storage of data. Once registered, the user is charged for the amount of storage is required. The advantage is that data is stored remotely, and updates are automatic. The disadvantages are that large amounts of data can be expensive and that only the reliability of the company. The decision on the type of network data storage use is based on the needs and resources of users.
If you have two or more computers at home that are networked to share resources, then you have a computer on the network. Anyone who uses a computer, which includes almost all the world should be aware of the need to safeguard important data. There are options available for data storage network that may not be available for the same team. The first step in deciding how to comply with its network of data storage is to determine the type of backup to use. Usually is performed by making a backup copy of all existing files, as a snapshot in time, and then add the backup of these changes as they occur. The other decision to make is that to maintain backups.
Here, There and Everywhere (more…)
Filed under Computer & Technology by admin on June 22, 2009 at 12:50
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For me, wireless networks have been classified as one of the best inventions in history. They are really the best thing since sliced bread. I mean, really, bread is very easy to cut yourself, but have you ever tried a cable network? His many many Yakka say.
WiFi is a wireless way to manage the network. It is also known as networking and wireless 802.11 networks. The big advantage of WiFi is its simplicity. You can connect computers anywhere in your home or office without the child. The computers connect to the network using radio signals and computers can be up to 100 feet or the other. Thus, in the spirit of the dissemination of the word, I will give you some good reasons why you need a wireless network.
Share Internet access.
Wireless networking provides a cheap and easy way to share one Internet connection among multiple computers, eliminating the need for more than a modem. You can even add new computers to the network by simply connecting a wireless card and change – they have an Internet connection from the start! Not many cable networks can say.
Share files and printers.
A wireless network gives you access to your files anywhere in your home and lets you synchronize data on a laptop computer with a computer at home. It is much easier to send files between computers on a wireless network to send email, or even burn a CD.
Furthermore, with the printer connected, you can also write things wherever you want, print and get a printer attached to another computer – printers that are connected to one of the computers on the network are shared among all computers automatically.
Forever Login
An important factor in the spread of broadband is to enable Internet connections, provided that, without having to dial, the wireless network can be always-on network connections, which means that one of their computers can connect to the Internet whenever you want! You can take laptops from room to room, and no matter – still have access. Furthermore, there is not even need to create a username and password system, such as wireless networks work without logging in. It’s so convenient!
No more cables.
This, of course, is the most important reason that should change your wireless network more. The child has the inconvenient, expensive, ugly and dangerous – who will be happy to see the back of them.
The average Ethernet wire does not cost much more than a meter, but once you’ve purchased enough meters to do what you gotta do, and tends to grow rapidly. Not only that, but if you want your child to run between rooms or floors, you have to break holes in the walls – which might not even be allowed if it is for rent. I know many people who had rented apartments to keep their network confined to one room until it was wireless. With a wireless network, and even outside of your computer, if you want!
No more the child is also more than all the spaghetti on the floor and in corners. This will not only improve the security of your home, because it is very easy to trip over the child at risk, but also means you have to go to all the problems of all packaging and child Log in again at the other end when move. This also means that you do not have to consider all children of the damage, if your Internet connection fails.
Play LAN and Internet games.
You may have seen an option in your favorite game to play on a LAN. Well, wireless LAN, which means that your whole family can play this game at the same time – computers without being anywhere near each other. It’s much more fun to play against real people, you know, to play against random people online, not to mention the game much faster. You can even invite your friends to bring their computers and participate in – a ‘LAN party’!
An additional advantage is that wireless equipment lets you easily connect a gaming console, you or your children can have the Internet, and start playing online. It is much easier to play online, connected wirelessly to an Xbox or PlayStation 2 to connect the modem each time.
Convinced yet?
If satisfied, while the largest – read these articles for tips on how to put everything in place. If you do not think this is for you but, well, do not leave – I am sure you will when you know how easy and cheap wireless really is.
For me, wireless networks have been classified as one of the best inventions in history. They are really the best thing since sliced bread. I mean, really, bread is very easy to cut yourself, but have you ever tried a cable network? His many many Yakka say.
WiFi is a wireless way to manage the network. It is also known as networking and wireless 802.11 networks. The big advantage of WiFi is its simplicity. You can connect computers anywhere in your home or office without the child. The computers connect to the network using radio signals and computers can be up to 100 feet or the other. Thus, in the spirit of the dissemination of the word, I will give you some good reasons why you need a wireless network. (more…)