Stig Kristoffersen asked:




Your TV Set becomes wireless

The borderline between the PC and TV becomes greyer these days as the TV Screens becomes of better picture quality, design and functionalities built into them.

At the same time the Pc’s becomes more and more advanced and can utilize better screens as well.

Several of the TV producers offer screens with internet connections and wireless network options. This will provide the consumers with a huge amount of options.

Science Fiction movies from the 80s and 90s showed us the TV as the hub of information all from ordering food to look at the weather and become a knowledge center. This is today maybe not so far from the reality. The TV set has had a very strong position in the homes of the people, and has acted as the entertainment center for the family. Today this position has been challenged by better and better computers with larger and larger screens, and the option to connect to larger TV screens. The TV sets fights back and has become stronger in the home arena again as it can provide entertainment as well as useful information.

Wireless confusion

Terms like medialink, Internet-TV, Wireless and so on are words the producers are using in their marketing campaigns to reach you as a customer. These expressions can confuse even the most informed person and it is not easy to find out what are these functions provided.

There are today mainly two types of “wireless” screens in the market. The most common type is the screens which are using wireless transfer to connect to your home network and get access to internet and other services.

The other type is screens that use wireless technology for video transfer. It is also possible for a TV screen to have both options built in, both wireless network and wireless video transfer between the screen and the video unit.

The most advanced flat screens today have become so thin that there is hardly room for any contacts on them any longer. At the same time our demands for options to connect increases. The solution to this challenge is to move the TV receiver into a separate unit to enable a as thin as possible screen. You only need a signal cable between the unit and the screen and power to get going. Some producers like Phillips transfers the power and signal in the same cable even.

The most advanced screens from Sony and Panasonic use wireless signal transfer.

Wireless video transfer

A connection between the screen and the receiver is made and the screen on the wall is no more than a monitor with one simple video input.

The TV receiver and all control electronics are all in the separate unit. In some cases the screen will have IR (Infrared) receiver so it can transmit the remote control signals to the unit where all the commands are executed.

The purpose of the wireless transfer is first of all to make a visual elegant and discrete TV screen solution. A minimum of cords makes it easier to create an elegant installation in any type of room and setting. The wireless transmission makes it possible to place the TV receiver away from the screen, and you can have the TV receiver in a cabinet with the blue-ray player and other electronics somewhere as the super thin screen can be installed on the wall as an elegant installation.

To transfer wireless HD-video is no simple task as it requires a high bandwidth and transmission capacity. So far the producers have only succeeded in transferring video signals up to 1920 x 1080i (interlaced) resolution. This is good enough for HD resolution transmissions, but will produce a reduction in quality of pictures produced by a blue-ray player. Video signals from the blue-ray player will require a high bit rate and a resolution of 1920 x 1080p (progressive). 

Today’s wireless models must be able to at least in theory to sacrifice some of the picture quality to achieve design and practical advantages.

Sony KDL-ZX1 is one of the first TV screens on the market with wireless video signal transmission in 1080i quality. The new top model from Panasonic in the Z1-series also use wireless transmission of video, so called WirelessHD.

TV with wireless network

The TV use Wi-Fi technology to connect to the local network. From this the TV can log into internet and offer a series of interactive services as news, weather forecasts and YouTube videos.

When the TV becomes part of your home network it can be used to show your photo collection, show home videos and play music which is stored on your computer.

TV sets with built-in internet has so far limited processing speed and can not be used for heavy duty software like computer games and so on. The functionality is also limited by the commands you can perform via the remote control unit, and that is in most cases say simple navigation through menus.

Some TV sets do not have built-in Wi-Fi though and only offers Ethernet cable connection. But these units usually have a separate USB connection which can be used to connect a USB unit that connects them to the wireless network.

The new 7-series LED TV’s from Samsung has apart from superb picture quality functionalities like Medi@2.0 which boosts internet services (widgets) and streaming of photos, video and music over the network.

PC-TV

Some producers have gone even further and integrated a more or less full blooded PC within the TV set itself. While the TV sets with built-in network limits itself to simple and TV oriented media functions, the PC-TV can be used as a regular PC. The TV will have a built-in operating system like a normal PC has like Windows or similar and is controlled by a mouse and keyboard like a normal PC.

A PC-TV is powerful enough to perform the same tasks as a stationary or laptop PC can do. The difference is that you can surf on the internet , perform document handling, gaming and watch video on a much larger and better screen than you can from the normal PC.

Panasonic offers the web function called CAST on several of its latest models. The CAST function gives access to Youtube, news, weather forecast and video services from online partners of Panasonic.

The PC-TV from Crea is one of the first TV sets on the market with an integrated PC in it. Crea Kronos has a built-in Intel Atom Processor, 80 Gb hard disk, 1GB RAM and Windows Vista Operating system which is controlled by mouse and keyboard. To ensure optimal picture quality the PC is connected through one of the HDMI inputs which eases video and movie transmissions.

 

Where does the border go?

The border between the PC and TV is not as clear as it was just some few years back. Both units begin to be capable of doing what the other is doing. Lots of the same tasks can be done in either one of them. The difference between the PC and TV is easiest described by the expressions “lean backward”. The PC is most suited to tasks that require you to lean forward like work, word processing, e-mail, and search for information. As when it comes to entertainment like movies and TV shows, you will most likely lean backwards in the coach or a good chair and rater use the remote control to seek the entertainment you wish to indulge yourself into.

 

Rick Eriksen asked:




In the seo world there are a few things you need to consider. First you need to make sure that you write your site naturally and in a very compelling way to the reader. Entice your readers with compelling content and they are sure to tell a friend, link back to your site from theirs or other blogs they write to, and if your site is interesting enough they will bookmark it or even write their own social network hub talking about your site.

Once your site is written and looks good, you will want to go back over it to set it up for on page optimization. This is only 10-20% of seo but if you think about it all your off page seo tactics depend on the on site value. It’s a lot like how a site promoting a meditation CD is the most important part in getting them to purchase it but if your site hypes them up and the product itself doesn’t deliver then they will never trust you again even tell their friends how you promise and don’t deliver.

Setting up your on page optimization is simple, just sprinkle a keyword people will most likely use when searching for your site in search engines about 6-8 times within the page, working it in NATURALLY to the content itself. Keep your page under 800 words in length, people like to read compelling articles but don’t over do it.

Your off page optimization will entail getting quality backlinks to your site and by quality I mean links from what are called authority sites. There are a few good ways to do this that are simple and effective. The most effective is to write articles for authority wordpress sites. This article should be around 500 words and should be written well. You include a link back to your domains main page in this article to provide you with a linkback. Write about 4 of these a month and over time you will build up an arsenal of linkbacks from authority sites. This takes time but is well worth the effort.

You should also get accounts with the major social networking sites like hubpages and squidoo and write a few pages on there too, including a link back. These are authority sites as well so your linkback will carry weight. There are services that you can write 100 word blogs with a link back to your site that will distribute these blogs naturally across several authority sites as well. You should sprinkle about 30 of these snippet blogs a month through them. They distribute them over several weeks so it’s a natural way to provide linkbacks quickly for your site. Make sure your blogs are quality and on topic.

You will want to use a keyword that directly talks about your site as the anchor text and the linkback points to your main page as well a several of your internal site pages. Between the article submissions, web 2.0 sites, and these blog networks you can generate an enormous amount of link popularity and you do it while adding valuable content to the web. The articles and blogs you submit will be there for ever so as long as you continue to provide new linkbacks every month the power of your efforts will only get stronger. For example if you publish 4 article submissions, 2 web 2.0 articles, and 30 blogs per month, at first it will be a small number of linkbacks (all be it all authority links so they hold alot of value) but after 3 months you will have amassed 90 linkbacks in blog sites, 12 article submission linkbacks, and 6 web 2.0 articles linkbacks.

Although your submitting the same effort each month your added linkback providing articles/blogs become more powerful because of the stack of linkbacks previously. In the search engines eyes if your old linkbacks age and no new ones are created your site’s ranking will diminish but if you bring in just a few new linkbacks every month all the old ones become incredibly valuable. The new ones are like watering the old ones as well as providing more link popularity as well!

mark dewolf asked:




Now a days having a wireless network available to you is more normal than abnormal. Many reasons have led to this change, one being cost. It is very cost effective so set up a wireless network as opposed to a wired network.

Because of the rise in wireless network popularity, more and more computer manufacturers are equipping their systems with the right wireless networking hardware. I am going to discuss 3 big points, wireless networking in laptops, desktops, and also the software on these machines

So we start off with a very important question – Is your laptop or home computer wireless enabled? This is how you can check if your computer has wireless capabilities or not.

Laptops

Many newer laptops have wireless networking capabilities already built in to them. If you laptop came with the hardware built inside of it, then all you need to do is make sure it is enabled and the button on the front (usually) of the laptop is lit up. If a wireless PCMI card is needed in the laptop computer, then make sure it is compatible with your brand of computer first. When you install it, make sure you have the driver disk associated with the hardware, and that it’s driver matches what version of Windows you have.

Desktop Computers

If you need to check to see if your desktop computer has a wireless connection, turn off the computer and turn it around and look for a rod sticking out near the bottom of the tower. This would be the wireless antenna just like an antenna would be on a radio. If you see nothing like this then your desktop probably does not have a wireless card installed in the PCI slot. So buy one that matches the version of Windows that you have on the desktop.

Windows to check the Wireless Capacity

Once everything is installed on your laptop or desktop you want to use windows to check the wireless capacity to make sure the settings are correct. Open up the Device Manager in Windows. Look for the network adapters + sign and click it. Look for something under there that should have the term “wireless” attached to it. If you see that there then you know everything has been configured correctly and all you need to do is connect to the available wireless network.

Sue Jan asked:




The sharing of fax machines, printers, and modems amongst many computers and users reduce the operational cost. A database on a computer network is a very important application as it stores and runs many important data and jobs. Emails and chats can be used for instantaneous communication and sending of files on a computer network.

The computer networks are classified, depending upon the size, as Local Area Networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). The topology (topology is the way the computer networks and network resources are connected) of the networking can be classified as Bus Network, Ring Network and Star Network.

The networking hardware basically consists of wiring, network cards and a hub. Computer network cards are required so that one computer can understand what the other computer is “talking”. Network cards have a unique MAC address to identify computers on a computer network. Hubs connect all the computers in the network. Hubs can also be used to connect to other hubs to increase the size of the computer network. Two computers can be connected using Ethernet cards or phone lines or power lines for communication, with hardware kits available at roughly a cost of $100.

As the number of computers in an office or a home increases, so do the number of cables, so wireless networking is a viable solution. In wireless networking radio transreceivers or infrared signals are used to communicate between computers and devices. Examples of wireless networking include Wi-fi and Bluetooth technology, though there may be security issues involved in wireless networking. However there definitely is a stronger preference towards wireless networking nowadays among consumers.

Computer networks have added a new dimension to the 21st century. Today the cyber world is much faster and wider than the real world. This has all been made possible due to computer networks. Computer networks have revolutionized business, communication, travel, research, defense, society and almost all human endeavors. The evolution of computer networks has helped the technological revolution take a big leap forward.

Benedict Yossarian asked:




For someone who needs a quick clarification on the matter, a hub combines all linked computers or workstations into a network, while router links two separate and distinct networks to each other. Hubs generally operate at layer 1 of the open system interconnection (OSI) reference model as compared to the layer 3 of the routers.

The explanation given above may be sufficient for an individual who possesses a background with the workings of an OSI reference model. But for an average Joe who has yet to trudge the intricate world of networking, the explanation may raise more questions than answers. Devoid of networking knowledge, one can easily get confused with regard to the difference between a hub and a router.

Computer Networking

When one wants to link two computer units together, he may opt to use cables and wires to physically connect the two. This is the most basic form of networking. However, what if the person requires that more than two computers and a few peripherals be connected? Will he be obligated to purchase network cards for each workstation? Certainly not. Here enters the need for a device that will receive the signals transmitted from one computer unit and transfer it to one of the few other machines linked within the network.

Hub

This is one tool that can answer one’s networking problems. Basically, this is a multi-port repeater, which connotes that the signals that travel into one port get conveyed into each and every port simultaneously. This is essentially what a hub does—forwarding electrical signals. It does not distinguish electric signals or care to look into the pieces of data themselves. One can simply send a packet over a cable linked to a hub and the data will still be transmitted to all other ports.

This is a plain and straightforward device, not to mention that it is affordable and easy to use.

Why the Need For Routers?

Why not link all computers using several hubs? Unfortunately, networking is not that simple. There exists a fundamental scheme or system arranged into the networks that are being used today. This is the basic principle: only a single machine linked to a network may transfer or share data at any given time. Only one. This is due to the fact that one cannot have a bunch of electrical signals concurrently flowing in a single cable.

Imagine two individuals talking at the exact moment. Odds are, no one will understand any information disseminated. This applies in the field of networking as well, but in grander and more serious scale. The collision and corruption of packets is the consequence rooted from a synchronized transmission using a hub.

But to be fair, when two computers do send a file at the same time, the computers will inherently back off and halt (for a certain amount of time) any further transfer of data. After the temporary queue, the machine will yet again try to send off the data. This may be bearable for a small-scale network. However, at this day and age, with the amount of traffic a network may receive, a hub is definitely out of the picture.

Router

This is practically a computer bearing a couple of network cards, thus, connecting two networks and enabling the computers within the networks to send and share data while bouncing off unsolicited transmissions coming from whichever. Usually, networks may be physically or logically split, though either way a router is still needed.

A router is also responsible for detecting a remote network path. Going into details will entail much more than a few pages of explanation. But in a nutshell, what occurs is that the router begins to construct a routing table in its internal memory where the topology of the linked networks is housed.

And as for the name, the router acquired the same because of its function—to route packets to other networks. Ergo, a router.

Jayesh Bagde asked:




Wireless internet or Wi-Fi is one of the latest developments in providing people with Internet access whenever they need it - even while traveling. This is a convenient way to stay connected with family members or business clients anytime of the day.

With the fast evolution and advancement of the Internet, millions of people all over the world make use of the Internet in their daily life. The internet offers a lot of useful information such as weather forecast, entertainment, research, music, news, online shopping, and many more. The Web also provides a more convenient way for people to communicate with others even in far away countries.

Businesses are also dependent on the Internet in dealing with their clients whether local or abroad. They too are kept posted with the trends as well as stock updates though the Net. They also use corporate e-mails in nearly all of their correspondence. Customer services and technical support of many companies also rely on the power of internet. Indeed, the Internet had become a necessity for ordinary people as well as business people.

Because of enormous growth of dependency on the Internet, people want to have internet connection even when on the go. This is now possible through the development of wireless Internet. Wireless Internet is popularly known as Wi-Fi, which is the trade name of this kind of wireless technology. A wireless Internet access is commonly called as hot spot in which a LAN or local area network transmits radio waves as opposed to a wired network.

Internet connection is broadcast with the use of a central hub connected to a computer system that functions as the server. The server broadcasts the signal to clients which have Wi-Fi capable devices such as desktop computers, PDAs, laptops, mobile phones, game consoles, and many more electronic gadgets. The wireless internet covers diverse IEEE 802.11 advanced technologies such as 802.11n, 802.11b, 802.11g, and 802.11a.

A home network can be set with wireless Internet, as well. This is done through the utilization of a router which performs as an access point. The router broadcasts Internet connectivity to Wi-Fi enabled devices within its area of reach. With this set of connections, anyone from the family can make use of their laptops or desktops and can gain access to the Internet.

What’s more, wireless Internet through home network can also be accessed by neighbors without your knowledge. To resolve this issue, a password security can be configured so that only authorized devices can have access to the network. With the growing risk of security issues, the security protocols for Wi-Fi log on have been made available with the employment of Wi-Fi Protected Access (WPA) and the Wi-Fi Protected Access 2 (WPA2).

Wireless internet through its public hot spot is being offered for free to its customers by many business establishments. These establishments include internet cafes, food chains, coffee shops, hotels, and restaurants. Some airports also provide the same service for travelers’ convenience. These features are becoming very prevalent in many places and countries. There are also a number of cities which provide wireless Internet access to their residences and visitors. Since the hot spot can cover only a certain area, you have to be within the range of the hub in order to log on to the Web.

Significantly, a wireless Internet is of great advantage compared to wired network. Wired network usually consumes a lot of time in order to set up in a building or house. It also entails more expenses as it requires a lot of UTP cables to be wired for each of a client’s computers. In some instances, there is a need to route wires through thick wall or ceilings. Wireless LANs can be deployed easily and is less expensive. More clients can be added to the network without the necessity for extra materials.

Since 2008, many of the latest laptops and gadgets come with a built in wireless network device. There are also a lot of gadgets which can be applied for computers or laptops that do not have any wireless network device. Some of these devices are the USB Wi-Fi adapters, PCI wireless adapters, PCMCIA Wi-Fi cards and other similar devices. There are also wireless repeaters used to extend the range of signal of any existing wireless network. This device is ideal for locations having many physical barriers like thick walls and in cases where there is a need to share the Internet in two separate buildings.

Jhoana Cooper asked:




Maintaining several computers sharing delicate files is a tough challenge. We hike it up a notch when we link these computers through WIFI. Although WIFI connections are convenient, because it allows your computers to communicate without the messy cables, it’s also highly risky. Anyone who can reach the signal of your WIFI could easily penetrate the system, hack the documents, and steal the bandwidth from your internet connection. This is the reason why any network, no matter how big or small, should always have a UTM Appliance and a WEP Cracking device installed.  

WEP Cracking System

A WEP Cracking System in your network allows you to scan all the computers that are trying to communicate with your network. These could be harmful infiltrators who are trying to access your WIFI, or passive cell phones who are infected with viruses, and who are also involuntarily penetrating your system. Basically, you’re protecting yourself from two things when you use a WEP Cracking System: people who are trying to use the bandwidth that you’re paying for, and harmful elements which can make your entire network crash.

A *********** scanner with WEP Cracking features can also protect delicate documents in your hard disks. Imagine, when you’re running a company, there’s always a risk that your competitor may be using unlawful means to get “secret information”. You can also prevent identity theft when you install *********** scanners with WEP Cracking features, because you can block phishers who may be trying to access personal information from any of your computers.

UTM Appliance

Some people think that they only need to fence in their networks to get ample protection. This can’t be farther from the truth, because most times, the harm actually comes from within the network. When you don’t have any control over the bandwidth usage of each computer in your network, then you’re in trouble. One person can always manipulate the internet connection for his/her own use. Also, without proper internet filtering, the computers that belong to your network can easily navigate away from safe websites and dive straight into websites that have harmful content.

To prevent these from happening, you need to make sure that you have a UTM Appliance installed in your network. A UTM Appliance basically tracks all outgoing communications coming from any of your computers once it goes online. From this list, you can ban URL addresses, disconnect loading pages, and many more. This is specifically useful when you’re trying to restrict personal usage of office internet facilities.

If you want to make sure that your employees are only using their PCs for work purposes, you can block music and movie downloading websites with the use of a UTM Appliance. Most schools and homes who have kids who use the internet also makes use of a UTM Appliance to make sure that all harmful websites are blocked from their network’s browsers. Schools and parents can also block applications like chat rooms from loading in their computers if they think that these things might put the children’s lives in grave danger.

James Madison asked:




USB, the acronym of Universal Data Cable, was developed by Intel. It is a specification for enabling communication between electronic devices and host controllers. Sounds geeky? In simpler words, USB cables are the data cables used to connect a computer or laptop with electronic gadgets like mobile phones, digital camera, MP3 players, video recorders, printer, scanner and others. The cables can easily fit into the standard USB ports present in the host systems. According to USB tech support specialists, data transfer speed can vary anywhere from 12 Mbps to 480 Mbps in different versions.

Since its inception, USB has become extremely popular for its manifold utilities. As tech support or computer support specialists suggest, other that connecting external devices, USB is used as power chord between device and adapter as well. How to connect the USB cables? Online tech support tutorials explain, USB cable is connected by plugging its one end to the USB port of the laptop or desktop computer and the other end to the external device. This port enables direct data transfer from the devices that are not a part of the computer system.

Almost all modern electronic devices have receptacles to insert the USB plugs. You will get a maximum of 5 meters of USB cable length as direct data transferring is not possible through longer pathways. Depending on the plugs and receptacles, computer support researchers have found that there are different USB cable types available on the market.

With further development of technology, users get introduced to USB network hub. A network hub is a device, tech support specialists explain, that enables multiple computers to connect to a network system. A USB hub allows USB-enabled devices to connect to a single USB port on a network hub or host computer. As I have mentioned above that USB cables length used to be of about 5 meters, it can be extended here using USB repeaters. Commonly a USB hub system supports 4 ports but, some online tech support specialists can construct a 7-port hub controller as well.

USB ports are handy and useful when they work properly. But problems with USB ports can sometime become difficult to diagnose even by the tech support professionals. However, specialized computer repair assistance is given online to troubleshoot the issues efficiently.

Well, time has come to get rid of the downsides. Fireware, another high speed connector, is now challenging USB with even greater functionality. Online tech support forums and communities are now discussing about the buzz, Fireware vs. USB. So, now you have more options while choosing a data transporter. According to specialized tech support views, there is not much difference on paper when it comes to data transfer speeds. But, the reality is, Fireware device is faster than USB owing partly to its peer to peer based structural design.

Of late, wireless USB has become more popular among consumers as it provides more efficiency in terms of data transfer speed. So, talk to a remote tech support tutorial first if you are planning to purchase one.

Olga Novia asked:




Especially ideal for telecom towers, the square angular tower is well suited for as it provides the widest application, and ease of modification. The angular structure can be customized to handle many different loads, and can be constructed for many different height levels. The versatility of the square angular telecom tower makes it ideal for hub sites, microwave network junctions, forest fire monitoring, and air traffic control radar. Installation is simplified due to its modular design. This type of design allows for the greatest amount of installation flexibility.

Why Choose the Square Angular Tower

The square angular telecom tower offered by Mer Telecom can be three or four legged, self supporting tower that is made of square angular elements. What makes this design unique is the tower is designed on a square base pattern. This make the square angular telecom tower incredible stable even in areas where wind levels may be a concern. The unique tower design is suitable for may customized applications including cellular communications, surveillance, or wind turbine tower just to name a few.

Design of telecom towers should support the specific needs, as the square angular tower is especially ideal for carrying either medium or heavy loads as well. It is also suitable for primary cellular sites, MW backbone sites, or central communication hubs. The tower comes with a variety of accessories which can be installed at various stages of construction and can be used to customize specific design modifications. This square angular tower model of is the most popular and the most versatile design used in a wide number of applications globally.

Construction of the Square Angular Tower

The square angular tower is can be assembled to a variety of heights depending on specifications. The tower can extend from 20m all the way up to 120m. The module design makes transportation to the construction site easy as it can be shipped in a standard 20’ ISO container. This makes it easy to get to even the most difficult installation sites. The materials used to construct the square angular tower are specially treated with anti-corrosion compounds extending the life of the tower. The bolts, nuts, and spring washers are all of the ISO 8.8 and Grade 5 level.

Containing a caged or open ladder the tower has a safety rail for easy ascending or descending by maintenance personnel. Specific and safety accessories include lightening kit, paint kit, obstruction lighting system, and antenna mounts. Its modular design allows modifications to the design at any stage of installation. If you are worried about the freight cost to have the square angular tower delivered to your site, keep in mind that the modular design keeps shipping costs down because of freight sizing efficiency.