15-03-2011, 03:00 PM
i have very little clue
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file transfer and lan chat for wireless and wired network
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15-02-2016, 02:22 PM
I WANT LAN CHAT AND FILE TRANSFER SYSTEM
20-02-2016, 03:07 PM
file transfer and lan chat for wireless and wired network
The world is going wireless. The lack of clutter and the convenience of being able to connect to the Internet almost anywhere means Wi-Fi is the first choice for anyone who is looking to go online.
The emergence of the Internet of Things means that soon we’ll have dozens of devices in our homes all connected to the iIternet, and all wirelessly.
Does that mean it’s all over for Ethernet? Or does the good old-fashioned cabled connection still have a place in the modern tech world?
Let’s take a look.
Ethernet versus Wi-Fi: The Key Differences
Up until a few years ago, the choice between Ethernet and Wi-Fi was pretty straightforward.
Ethernet was much faster but because it requires cabling, you were extremely limited in where you could place your computer in relation to your router. And once you chose a spot, you couldn’t move.
Wi-Fi, on the other hand, was somewhat slower but had the convenience of being able to be used within, say, 150 feet of the router, and Wi-Fi hotspots could be found in a large number of places.
wifi hotspot
That was the choice: speed versus convenience. As a result, they would often be seen as complementary, rather than opposing, technologies. With some of the changes in the last few years, it’s no longer quite so clear cut.
Speed
When Wi-Fi first moved into the mainstream, it was mostly based on the 802.11g standard. This offered maximum theoretical speeds of 54Mbps (megabits per second), and far less in practice.
It was satisfactory for Internet access on mobile devices, but fell well short of the performance offered by Ethernet, which can produce speeds anywhere from 100Mbps to 1000Mbps and beyond.
cat5 cable
The latest Wi-Fi standard is 802.11ac and it offers theoretical speeds of up to 3200Mbps (and practical speeds of around half that).
This outpaces most typical home broadband connections by some margin. Assuming you have the hardware to support this standard (you need it in both your router and all your computers) it means the broadband speed is now the bottleneck, not the Wi-Fi speed.
The major benefit of Ethernet is now gone.
Reliability
All speeds are theoretical, however.
A fixed Ethernet connection is likely to be fast, stable and deliver consistent speeds. It’s something you’ll notice the benefit of if you download large files or stream lots of HD video.
connected laptop
Wi-Fi is susceptible to countless environmental factors. Radio waves can be blocked by walls and floors. Other wireless devices can interfere with the signal, including things you wouldn’t think of like microwaves and cordless phones, as well as nearby routers using the same channel. Even the atmosphere can cause problems.
The result is inconsistent performance. As you move around your home, you can see the strength of your Wi-Fi network connection fall and rise, affecting speed accordingly. You may even have blackspots in your home where the Wi-Fi signal doesn’t reach at all.
wifi signal
You can minimise this by ensuring your router is placed in the optimum position in your home, but it’s unlikely that you will ever achieve the same levels of stable performance that you will get from Ethernet.
Security
Security is the other big factor when comparing Wi-Fi and Ethernet. Here, there’s really no comparison.
The data on an Ethernet network can only be accessed by devices physically attached to the network. These devices, including the laptop at one end and router at the other, need firewalls to protect them, but there’s way the data itself can be intercepted on the network.
ethernet cables
With Wi-Fi, the data is in the air. If you’re using an open network (such as in a coffee shop) then all the data you send and receive can be intercepted, including personal information and login details.
Most Wi-Fi networks are secured, so your data is encrypted. But the strength of the encryption depends on the security method you are using. Most routers offer a range of security modes. WEP is the least secure and should be avoided whenever possible; WPA2-PSK is the most secure and is the preferred option.
The world is going wireless. The lack of clutter and the convenience of being able to connect to the Internet almost anywhere means Wi-Fi is the first choice for anyone who is looking to go online.
The emergence of the Internet of Things means that soon we’ll have dozens of devices in our homes all connected to the iIternet, and all wirelessly.
Does that mean it’s all over for Ethernet? Or does the good old-fashioned cabled connection still have a place in the modern tech world?
Let’s take a look.
Ethernet versus Wi-Fi: The Key Differences
Up until a few years ago, the choice between Ethernet and Wi-Fi was pretty straightforward.
Ethernet was much faster but because it requires cabling, you were extremely limited in where you could place your computer in relation to your router. And once you chose a spot, you couldn’t move.
Wi-Fi, on the other hand, was somewhat slower but had the convenience of being able to be used within, say, 150 feet of the router, and Wi-Fi hotspots could be found in a large number of places.
wifi hotspot
That was the choice: speed versus convenience. As a result, they would often be seen as complementary, rather than opposing, technologies. With some of the changes in the last few years, it’s no longer quite so clear cut.
Speed
When Wi-Fi first moved into the mainstream, it was mostly based on the 802.11g standard. This offered maximum theoretical speeds of 54Mbps (megabits per second), and far less in practice.
It was satisfactory for Internet access on mobile devices, but fell well short of the performance offered by Ethernet, which can produce speeds anywhere from 100Mbps to 1000Mbps and beyond.
cat5 cable
The latest Wi-Fi standard is 802.11ac and it offers theoretical speeds of up to 3200Mbps (and practical speeds of around half that).
This outpaces most typical home broadband connections by some margin. Assuming you have the hardware to support this standard (you need it in both your router and all your computers) it means the broadband speed is now the bottleneck, not the Wi-Fi speed.
The major benefit of Ethernet is now gone.
Reliability
All speeds are theoretical, however.
A fixed Ethernet connection is likely to be fast, stable and deliver consistent speeds. It’s something you’ll notice the benefit of if you download large files or stream lots of HD video.
connected laptop
Wi-Fi is susceptible to countless environmental factors. Radio waves can be blocked by walls and floors. Other wireless devices can interfere with the signal, including things you wouldn’t think of like microwaves and cordless phones, as well as nearby routers using the same channel. Even the atmosphere can cause problems.
The result is inconsistent performance. As you move around your home, you can see the strength of your Wi-Fi network connection fall and rise, affecting speed accordingly. You may even have blackspots in your home where the Wi-Fi signal doesn’t reach at all.
wifi signal
You can minimise this by ensuring your router is placed in the optimum position in your home, but it’s unlikely that you will ever achieve the same levels of stable performance that you will get from Ethernet.
Security
Security is the other big factor when comparing Wi-Fi and Ethernet. Here, there’s really no comparison.
The data on an Ethernet network can only be accessed by devices physically attached to the network. These devices, including the laptop at one end and router at the other, need firewalls to protect them, but there’s way the data itself can be intercepted on the network.
ethernet cables
With Wi-Fi, the data is in the air. If you’re using an open network (such as in a coffee shop) then all the data you send and receive can be intercepted, including personal information and login details.
Most Wi-Fi networks are secured, so your data is encrypted. But the strength of the encryption depends on the security method you are using. Most routers offer a range of security modes. WEP is the least secure and should be avoided whenever possible; WPA2-PSK is the most secure and is the preferred option.
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