Wireless Networking, Part 1: Capabilities and Hardware

Wireless Networks, Part 1: capacity and equipment Today, it is not uncommon for a house to have more personal computers and, as such, it only makes sense for them to share files, as well as to share an Internet connection. Plug the cable network is an option, but it is a May requiring the installation and management of large quantities of cables in order to save even a small house. With a team of wireless network will be extremely affordable and easy to install, perhaps worthy of consideration by those seeking to build a house, and those who want to extend an existing cable network. The first two rounds of Technical advice will provide an introduction to basic skills and equipment involved in wireless networks. When the foundation is established, we take a look at the configuration and security considerations that must be addressed at the installation is complete. Network The basic rule that covers the wireless networks is the Institute of Electrical and Electronic Engineers (IEEE) 802.11, which is close to the family standard Ethernet cable, 802.3. 802.11 recognize much easier if accompanied by a three suffixes (a, b, g), which is used to specify the precise protocol for wireless networks. The protocol 802.11a first stage coup in 2001, despite a slight increase in recent popularity, is by far the smallest of the three common at this time. The signals are transmitted in a radius of 5 GHz, while in travel g 2.4 GHz. Most means that the signal can travel the distance in less space and have more difficulty in penetrating the walls, making the practical implementation of an 802.11a network somewhat limited. The maximum transfer rate, but is about 54 Mbit / s, so it compensates for its low speed range respectable. As indicated above, 802.11b and 802.11g networks that operate at 2.4 GHz radio banda, which gives a much greater range, compared to 802.11. A disadvantage to be in the 2.4 GHz band is that many devices share and interference is linked to a problem. Cordless phones and Bluetooth devices are two of many elements operating in that rate. The choice of these two protocols is about 300 meters outdoors and the difference between the two is tantamount to speed. 802.11b comes first, published in 1999, offering speeds up to 11 Mbps. 802.11g first appeared in 2002 and is compatible upstream an improvement over 802.11b and offers speeds up to 54 Mbps. In addition to these protocols, some manufacturers have improved the standard 802.11gy can provide speeds up to 108 Mbps. It is not a separate protocol, but only a few changes in areas such as data compression better, more effective package of rupture, and through two radio stations simultaneously. Normally, stocks 802.11g equipment is not capable of these speeds, and stakeholders need to buy items defined as a response to 108 Mbps. I say this as befits components is not a standard protocol and the various manufacturers May adopt different approaches to reach such speeds. To ensure the best results when it comes to achieve these high speeds, components from the same manufacturer must be used at the same time. For example, only the mark Netgear nominal NIC 108 Mbit / s data transfer must be used with a Netgear WG624 wireless router (http://www.geeks.com/details.asp?invtid=WGT624NAR). Take into account the usual Internet connection banda anche provide rate data transfer of 10 Mbps or less, you can see that even 802.11b is more than enough if you just want to surf the Web. The sharing of files on the LAN (Local Area Network) is faster when the protocols really make a difference, and compare the prices of 802.11b and 802.11g components can show that there is little or no difference in the choice of stand-by for a comparable unit B device. Equipment access point? Wireless Access Point (WAP) is the central unit that controls the transmission of signals wirelessly to a network. A basic access May be able to handle up to 10 connections, and more robust AP might be able to handle up to 255 connections at the same time. D-Link DWL-1000AP + (http://www.dlink.com/products/?pid=37) is an example of an access point capable of 802.11b wireless transmissions. Router? In technical terms a little, a router is a device that sends packets of data. In general, the connection between at least two networks, for example, on the local network or a local area network and ISP (Internet Service Provider). For our purposes, for pleasure and simplicity, a router is, in principle, a wireless access point with the added feature of having a port to share an Internet connection banda reeds. D-Link AirPlus G (http://www.geeks.com/details.asp?invtid=DI524-R&cat=NET) is a capable 802.11g router, which provides access to many wireless connections and lasts four-connection cable to a WAN (Wide Area Network Internet). A typical router for domestic use is generally less expensive than an access point, and the adjustment in the firmware, can be used as an access point anyway. By wire or wireless, all computers using the router can share files over the network and share an Internet connection banda reeds. Wireless communication between computers (or a wireless computer and a computer cable) for a maximum of 54 Mbps, while communication between computers wired to take full advantage of 100 Mbit / s is available to 802.3 Protocol. Network adapter? A network card is required for each computer you want to be connected to the wireless network. Many notebook computers, Sony Centrino 1.5 GHz (http://www.geeks.com/details.asp?invtid=PCGZ1RA-R&cat=NBB) now includes a wireless adapter, so that no additional equipment necessary. For those with systems that do not have integrated wireless capabilities, add them is simple, and can be done with the help of a number of connections. Desktops can go wireless by adding a PCI-slot network adapter, which measure 802.11g D-Link DWL-G510 (http://www.dlink.com/products/?pid=308). Notebook users can easily add pcmcia wirelessly using an adapter, because the device supports 802.11g (http://www.geeks.com/details.asp?invtid=PBW006-N&cat = NET). And really suitable for plug-n-play wireless network, USB adapters to 802.11g dongle (http://www.geeks.com/details.asp?invtid=80211GWUD&cat=NET) is available. Antenna / Extender? These items are not indispensable, but given the unique features of a wireless environment, which could be useful. Devices that Hawking Hi-Gain Antenna (http://www.geeks.com/details.asp?invtid=HAI6SIP-N&cat=NET) or Super cantenna (http://www.geeks.com/details.asp ? Invtid = SCB10 & cat = NET) used to increase the signal strength and wireless, thereby expanding the scope of a wireless network. Not only a great field seats to be filled, but the signal can be improved in structure with walls and floors that prevent the transmission of signal. Last words of this Tech Tip, we take a look at the base of wireless networks in terms of capabilities and equipment. In the second part of this two-part series, we'll see some of the basic configuration and security considerations that should be taken into account. The physical installation of a wireless network may be easier than exponentially a cable network, but the hardest part is the creation of software and security to ensure that everything is still in place and working well . Jason Kohrs
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Expansion Cards Part 1: (of a 3 part series)

Expansion Slots PCI on motherboards available to enable a number of improvements in the system to a computer, but compatible with this card for a slot available must be addressed before making any purchase decisions. Most types of expansion cards for modern computer systems can be divided into three formats: PCI, AGP and PCI Express. Each of these formats will be dealt with separately in this three-part series of Tech Tips, the PKI. The letters stand for PCI Peripheral Component Interconnect, and is the term used to describe a bus that connects directly elements of the system memory and processor system via the FSB. I am communication on a motherboard, the duration of buses has nothing to do with the large yellow taking children to school. It May a number of buses on a computer, and a PCI bus, they are all responsible for traffic management of communication devices for different processors. The FSB is a high-speed connection that controls communication processor with themes such as hard disks, memory and PCI devices, without processor speed with all management responsibilities. First developed by Intel in early 1990, PCI has been established even before (or less), bus architectures, such as the ISA (Industry Standard Architecture), and VL-Bus (local Ves), which was in the years 1980 and 1990. The original specifications for the PCI bus at a speed of 33 MHz, with 32-bit wide bus and a maximum width of band 132 megabytes per second. There were no changes to the PCI standard has increased significantly this statement, taking to 66 MHz, 64 bits, and 512 megabytes per second. 32-bit and 64-bit versions have different physical properties, and most motherboards only offer 32-bit connections. The original had the power specification PCI-devices that operate at 5V DC, and the revisions was an opportunity to continue using the devices 5V, and is now able to operate on 3.3 VDC. A simple explanation 32-bit and 64 bit can be read on the analogy of buses and traffic. Think of all the little as one lane of traffic on the road. Think of a 32-bit bus lanes 32 and 64-bit bus has 64 lanes. Like a greater number of cars can travel on a multi-lane road, more data can be transferred to a bus, with a little more important. The controllers can support multiple places share a PCI bus, and although not particularly frequent, May include more than one PCI bus. According to the form factor the size of the motherboard, and other characteristics that may occupy space on the disk, you can expect to have a six PCI slots in a typical motherboard. For example, mATX format offers two 32-bit PCI, while the ATX format features six 32-bit PCI. A 32-bit PCI This includes 124-pin mating with a slot in a system motherboard, and is well on a 32-bit or 64-bit housing (even if the transfer data 32 bits any location ). A 64-bit PCI This includes 184-pin mating with places in a system motherboard, but in general, can participate in a 32-bit and slots, provided that the characteristics of the map mother not to interfere. Once installed on a 32-bit slot, the transfer of data to a 64-bit cards will be limited to 32 bits. The STL2 Dual Socket 370 Intel Server Board w / VRM The STL2 Dual Socket 370 Intel Server Board is a good reference for comparing 32-bit and 64-bit PCI. Looking to the lower left corner of the motherboard has four 32-bit PCI slots and two 64-bit PCI. After this series of deadlines for technical advice will be AGP and PCI Express, which each have their own unique physical characteristics. Although the different format of PCI cards can be used, PCI, AGP and PCI Express will not work (or appropriate) in the second slot. Most PCI 32-bit variety and selection of items available is quite broad. Graphics cards, sound cards, network cards, RAID controllers, TV tuners, modem and USB / Firewire controllers are all issues that can be added to a system using a PCI card. Most of the points mentioned in the preceding paragraph may be found in modern motherboard, but on board these units do not have the capacity to upgrade. Provide PCI devices plug and play, which allows the user to install (or remove) a device with ease. For example, a low-cost 2-channel sound card May be good enough for some early, but how May decide that something like 7.1-channel Sound Blaster Audigy 2 provides the sound quality they really want. Graduation is a question of whether to turn off the system, the exchange of letters, restart, and install new software and drivers (OK, maybe a little more simplified). The good thing about PCI cards is that even if you have a card with a function (for example, built-in audio that is mentioned above), the motherboard's BIOS is generally you can disable this feature if you do not want to add to an atmosphere of expansion cards (Audigy sound card mentioned in the example above), or the card can complement the role which has already been incorporated (as a RAID card FDI). The only area which has led the development of the PGA are the results based on the PCI graphics card. The requirements for fast video games and other graphics applications requiring a wide bandwidth, but only that it was not available on the PCI bus. Since all devices share the width of available PCI bus banda, even faster, separate bus was forced to deal with only graphics. PCI graphics cards are still available, however, and make a simple way to add a second monitor to a system which currently operates in an AGP or PCI Express graphics cards. The last word PCI has been around the world, and seems to have a place at least in the near future of architecture. AGP and PCI Express offers performance benefits that the standard PCI can not match, but for many applications, the performance offered by PCI is more than sufficient. Be sure to leave before the next technical advice in this range as a basis for AGP. The technology http://www.geeks.com http://www.geeks.com/pix/techtips.htm advice and assistance http://www.geeks.com/pix/techtips.htm computer

USB Key Drives - Useful Tool

There are many different names for these devices, only a fraction of what we are all on the same wavelength about what I'm talking about, here are some other names: USB Drive, Thumb Drive, USB Pen Key Drive, Microdrive, flash drive. These units, regardless of what they called, is a useful tool for all who use computers in different places. USB keys are great because they are very small and can fit in your pocket, collar, or a key. They range from 32 MB to 4 GB of storage, and requires no software! Simply plug into the USB port on a computer and a pencil, storage and transfer device. These units will save much time and money. It is a quick way to transfer personal documents, projects, pictures of home office and reduce waste burning CDs, or the use of floppy. We have moved from an office in electronic paper, we are now only increased my reusable devices using the data transfer with much larger capacity and life. The USB devices provides a rapid transfer between devices, you do not need to waste money on blank CDs, DVDs, floppy disks, which has been transferred to the long, probably much faster that it can burn a CD, and they are good to go! These devices give us a low cost, environmentally friendly, high capacity, fast and multi-platform compatible. With all these good reasons to have one, I do not see why more people do not use them! Prices are constantly falling this type of media and almost all computers that are used today in charge of USB devices. And did I mention they look cool? Ken Dennis http://KenDennis-RSS.homeip.net/ http://KenDennis-RSS.homeip.net/

Ink Cartridges & Printing - Poor Print Quality Solutions

Why are there any areas of fainting or a hole in my impression? *
Improbable, but its role May change due to the deterioration because of their age. * Make sure the type of paper used in the printer matches ( type ) putting in place the printer software Main Menu or Print . May * You must clean the print head nozzles. These can be cleaned using the head cleaning in writing software tool that you get when you want to print or pass through the Control Panel (available through the My Computer ) and select the printer. After cleaning operations are carried out by the printer, a check written model to show that the buses are clean. If there are still areas of poor quality, repeat the operation. I have white horizontal lines that appear?
May * You must clean the print head nozzles - see above * If your printer has a warning light indicating a low level of an ink cartridge, and then modify it. * Make sure the type of paper used in the printer ( type ), coincides with entry into the printer software Main Menu or Print . The colors are not what I thought it might be? * Clean nozzles print head - see above * You do not choose the option of colour printer software. That is what happened to me many times. By default, my printer software black selected for printing. * Certain types of paper has a face that can not be printed. To properly loaded on the printer. * Make sure the type of paper used in the printer ( type ), coincides with entry into the printer software Main Menu or Print . * What you see on your screen will never be identical to what you get on paper. It should not be so far, but if so, then you can have a problem with color calibration between the monitor and software you use. In the end
never buy brand ink cartridges. Get what you call the ink cartridges are compatible. They are much cheaper and produce the same quality results. www.ink-band-store.com show the range of these products are available today. In my experience, if it is used for ink cartridges rare, so you'll find yourself having to use public services for cleaning almost every time we use them. Therefore, I propose the impression from white and color page text (for example, 200 words in black, red, blue and yellow colors) on a regular basis (once a week?) Even if you not use the printer. You'll save ink over the long term as a cleaning tool is used much more of its pages weekly maintenance. This article May be reproduced in its entirety until the appeal paragraph below contains all URLs and stay active. (c) Paul Curran, CEO of Cuzcom Internet Publishing Group and webmaster to http://www.ink-cartridge-store.com cartridge, giving http://www.ink-cartridge-store.com/bestinkcartridges / bulk . html reduction bulk purchases http://www.ink-cartridge-store.com/bestinkcartridges/Laser.html best and also provides the toner.

Just The Fax, M?am

For years I smugly proud of myself as a person who is not a fax machine. I felt under my dignity to own such a technical contraption. The pen is more my style to a computer, but to be practical, reluctantly use a computer, casting a glance nostalgic gathering dust in my pen. Unfortunately, in the world in which we live, it is necessary to fax letters or documents to someone in a strange place in the world. I do not, but this is the way it is. In rare cases, when I have a fax in a document Office in Britain, usually hidden in the back. It was my experience when the fax man he sees me always increase the price per page. This is just a service that makes their safety. Then, when you pay for this service, fax usually the man said with a mischievous smile, When a fax machine in your own life? I always flash a smile at him, but he knew that 'spirit in my head, he charged more per page. Silence is golden truth, especially for the person exercising virtue. In fact, I do not trust machines. I know that the soul is a place to control all these machines - a threat, harmful thoughts dedicated to the simple task of losing my life. When they finally go out and buy a fax machine invent something someone to replace him, and myself will have another antiques in my hands to put beside my Underwood typewriter and boxes of cassettes 8 tracks. Despite this, I ended up buying a fax a few weeks ago. I do not want to, but had no choice in the matter. My printer is finally on the path of all printers. I hated to see it go. The left was damaged in which Noah, the original owner, was reduced. For years I served very well. My next will be a printer ink cartridges to be filled. I hate the purchase of replacement equipment. Rarely is the new better than the old one, only more expensive, not to mention complicated. But necessity is the stepmother of all complications in life, and I started to buy a new printer. I decided not to buy a fax machine. Under no circumstances do I want to buy a fax machine. Therefore, I am finished with the purchase of a fax machine. It is impossible to buy a printer. To buy a printer, you should buy a printing machine / copy / scan / fax. I think this is a fairly tricky for me to buy a fax machine. Some outside was put on me to own a fax machine, even if I am not their own. This new machine is empty, but inside the car. But the team is cheaper than I could find. I bought the machine, but decided not to use the fax. After everyone has someone to stand up for what they believe. Not everybody should succumb to the latest trend. I was doing well find itself in the hospital. When I arrived, it requires a document via fax to the hospital. Now I was faced with a dilemma. Do I need to go to my shop and paper fax, or should I do with my new printer / copier / scanner / fax? Priority finally paved the way for convenience. I took my papers for my new computer and how to send it by fax to the hospital. Do not trust my technical knowledge, I called the hospital to check on the office paper by fax. To my surprise, the person at the other end said in a very cheerful voice: Yes, he faxed the document here in my hand. I must admit, although I hate to do this, that fax is far from my house easier to go to the office stock. Now known by fax a document, anywhere in the world, but I had nothing to fax to anyone in the world. I just pick up my computer trying to think of something to fax. Even if I knew how to fax a document, still do not know how to receive a fax. A few days ago, a friend called and said he had a document that wanted me right away. He asked the troubling question: Do you have a fax? I started to say no, but hesitated and confessed that he had a fax, but you do not know how to receive faxes. It is humiliating to make such a skriftemål, but true. It's easy, he said, I hang up and dial again and let computers talk to each other. This has caused discomfort. Believing that these machines are talking to each other behind my back is most disturbing. What is said about me behind my back? Now that I've come to think of it, I heard sounds similar to the snickering of the general direction of my printer / scanner / copier / fax. I do not mind Big Brother course me, but I know that some computer jokes with other machines on me. Regarding the new things God is the master. That is what he promised to do for us. Therefore, if a man in Christ, is a new creature: old things are gone, see, everything has become new . (2 Corinthians 5:17 KJV). Put them in your printer and fax. Snyder is Ærverdig Ministry of the Family of God Fellowship in Ocala, Florida. Most of its articles are available for reprinting on their website: http://www.godspenman.com/ http://www.godspenman.com/ Rev. Snyder is available as a guest speaker. He writes a weekly column, and is the author of You can always E-mail to a pastor, but not much available at: http:// http://www.jamessnyderministries.com/ www.jamessnyderministries.com/

Wireless Notebooks: What You Need To Know About Going Wireless!

It is not quite breaking news that our world is becoming increasingly wireless. Many of our daily activities that once needed a cable connection, can now be done wirelessly! Mobile phone craze was probably the first revolution which apparently took place overnight. The convenience of being constantly connected or connected to your company, your friends or family is an undeniable need for swift implementation. For many people, was a necessary element in their daily lives. Wireless computers, laptops or laptops May the second wave in the race to become a world completely wireless. The ability to be constantly connected to the company and / or loved ones is revolutionizing the way we use computers and the Internet. The ultra, versatile small portable undoubtedly play an important leadership role in the fight to keep permanently connected wirelessly. It is mobility of the laptop or notebook that contains the most appeal and is the largest sales. And its popularity is growing. It is estimated that more than 42 million notebooks will be produced this year in 2005. The market for laptops and computers is growing at a rate of 20% annually, according to the Taiwanese policymakers in the notebook. And they should know - that allows 70% of these laptops or its components for major players such as Dell, Hewlett-Packard and Gateway. But this is the mobility and wireless communication of these devices is that they have increased their popularity among the majority of users. How wireless communications made by the portable PC or notebook you ask? Portable wireless uses three major standards for wireless data transfer data. It is probably most common is 802.11b, also known as Wi-Fi as a means Wireless Fidelity. Wi-Fi 802.11b transmits data wirelessly to a maximum speed of 11 Mbps for a maximum of 150 feet. It uses the 2.4 GHz radio spectrum, and even if it is 11 Mbps, it will probably reach only about 4-6Mbps in actual use. But this is enough bandwidth for high-speed Internet access, games and most file transfers. The 802.11a is a different standard that uses the 5 GHz spectrum, it has 8 channels available instead of only 3 is available with 802.11b. The 'A' version can also be increased transfers, and a maximum of 54 Mbps. The second standard, 802.11g, is a hybrid of A and B - also its ability to 54Mbps, but uses the 2.4 GHz spectrum and is compatible with 802.11b devices. Some portable Fujitsu LIFEBOOK N6010, is a tri-mode 802.11a/b/g wireless system that uses three ways! The next wireless communication technology 3G EV-DO! Sounds like a robot StarWars pleasure - but it is for developing data optimized. This new technology will change the way you see and use the World Wide Web. Verizon Wireless 3G EV-DO commercial exploitation began in October 2003 and now extends to over 125 million consumers in the USA at the end of 2005. With download speeds of 400 - 700 kbit / s and gusts of up to 2 Mbps, 3G has really given wireless Internet connection at this time. He did not and does not turn the Internet into a true wireless system that has no lines or cables. It will be everywhere in the world - no place in our biosphere will be without the Internet very soon. Of course, it should be noted that a group of wireless computers can be done using a wireless router and a wireless network adapter for each computer. In addition, many computers and notebook computers comes with a Bluetooth module, which allows wireless communication between electronic devices - cell phones to your computer to stereo headphones. But if you create a wireless network or by using wireless laptop or notebook computer for hotels and airports - security is a concern. Everyone is on the distance, have the right equipment and a little ingenuity can access the wireless system. For large companies or humble home, steps should be taken to ensure that visitors to cancel their wireless peaceful world. In general, there are two basic methods to secure wireless networks, WEP and MAC address filtering. MAC (Media Access Control) address is physical or material unique identifier for each device on the network. Then, manually enter a list of addresses you can use or access your wireless network. The second screening process is safer, WEP or Wireless Encryption Protocol requires a key that is shared among users, and then use that key to encrypt and encode data transfer between users of their networks. Most major hotel chains and other companies already offer Wi-Fi services such as greater convenience for their customers. These hotspots are popping up everywhere, even in some stations. You May to register or obtain a password or key access to these services. But, as his mobile telephone conversations, any wire or radio transmission will not be as safe as a cable connection. Keep this in mind if privacy is a major problem for you. But do not stop you enjoy the comfort, convenience and portability of wireless laptop or a laptop. It is a world without wires, after all. For more information on your notebook computer and notebook computers, click here: http://www.bizwaremagic.com/notebook-online-buyers-guide.htm portable Guide copyright? 2005 Titus Hoskins of http://www.bizwaremagic.com http://www.bizwaremagic.com This article may be freely distributed if this resource remains attached table.

TiVo: An Introduction for the Few Who Dont Know Yet

TiVo will change your life ... for the better. Clear and simple: the record shows eloquent TiVo to record (if not, what channel, how long, etc.), the record all new episodes of X, recorded all films with so-and-so for them, etc. The number maximum points: Most know the basics of the concept. That is down on the things I asked for more ... 1. You can take one thing and see something else already registered. 2. You can get a double tuner TiVo, but you need two channels TiVo (ie, two lines of its satellite dish). Then you can save 2 things at once, or to see one or two of the register. They are more expensive, but you can get a directive w / dual-tuner cheaper, and then TiVo monthly fee is about half of normal. 3. Pause Live TV - if you do not understand the value of that, I am not explain it. :) TiVo has many different versions that minor variations. If you want to go beyond the average , before leaving this forum. Comparison with ReplayTV: TiVo seems to have a better interface and what I have seen what others have said. It is easier to use. However, ReplayTV is easier hackable - can be accessed via the Internet and the PC easier to convert file-show, so I have a DVD burner, so this is another post for another time. Both can be done to maximize the same things, but you get the idea. My proposal for a directive recommends Hughes HDVR2 (double tuner) w / Triple LNB dish (a barrel oval w / 4 lines, and is ready for HDTV). He converter built the satellite for what it is the only box to cope w / TiVo monthly rate is lower, double tuner. This model is not as hackable as some of TiVo, but some can do and if you want to go beyond the basis of what you probably do not read them so far. Sites: http://www.dvrinfospot.com http://www.dvrinfospot.com http://www.TiVo.com http://www.TiVo.com http://www.TiVoCommunity.com http:/ translate.google.com / / Www.TiVoCommunity.com http://www.WeaKnees.com http://www.WeaKnees.com ... and, of course, The Armchair Geek (see below). Bear Cahill is a software engineer in Dallas, Texas and covers an sites: Speaker Geek (http://www.thearmchairgeek.com thearmchairgeek.com), web hosting information (http://www.webpagehostinginfo . Webpagehostinginfo no. Com), You can go to college online (http://www.gotocollegeonline.com gotocollegeonline.com) video and Community Exchange (http://www.videoexchange.org videoexchange.org) Post - and-forth about this resource box is included and links are maintained in the form of links.