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The home is viewed by many as the next big battlefront for tech companies. Apple first talked about HomeKit at its developer conference in 2014. The feature allows developers to integrate controls for door locking, light dimming, and other home automation gadgets and features in iOS apps for the iPhone and iPad. That means users can control various connected devices from one spot -- even using Apple's digital voice assistant, Siri -- rather than switching back and forth between different apps. Apple was early to talk about smart-home technology, but rival Amazon, with its Alexa voice assistant, has lately dominated the market. The number of Alexa-compatible devices outnumber HomeKit products, and fewer HomeKit devices have been released than expected.

Tech Enabled: CNET chronicles tech's role in providing new kinds of accessibility, Special Reports: CNET's in-depth features in one place, The camera with a 180-degree wide-angle lens costs $199.95 from the Apple Store, You can finally get your hands on an Apple HomeKit-compatible security camera, D-Link on Wednesday rolled out its nasa retro space travel poster the grand tour iphone case new Omna 180 Cam HD (DSH-C10) camera that lets users monitor their homes when they're away, First announced in January at CES, the device is the first HomeKit-enabled device from D-Link's Omna line and the first HomeKit-compatible security camera in the market at all..

A wired local network is basically a group of devices connected to one another using network cables, more often than not with the help of a router, which brings us to the very first thing you should know about your network. Router: This is the central device of a home network into which you can plug one end of a network cable. The other end of the cable goes into a networking device that has a network port. If you want to add more network devices to a router, you'll need more cables and more ports on the router. These ports, both on the router and on the end devices, are called Local Area Network (LAN) ports. They are also known as RJ45 ports or Ethernet ports. The moment you plug a device into a router, you have yourself a wired network. Networking devices that come with an RJ45 network port are called Ethernet-ready devices. More on this below.

Note: Technically, you can skip the router and connect two computers directly together using one network cable to form a network of two, However, this requires manually configuring the IP addresses, or using a special crossover cable, for the connection to work, You don't really want to do that, The back of a typical router; the WAN (internet) port is clearly distinguished from the LANs, LAN ports: A home router usually has four LAN ports, meaning that, straight out of the box, it can host a network of nasa retro space travel poster the grand tour iphone case up to four wired networking devices, If you want to have a larger network, you will need to resort to a switch (or a hub), which adds more LAN ports to the router, Generally a home router can connect up to about 250 networking devices, and the majority of homes and even small businesses don't need more than that..

There are currently two main speed standards for LAN ports: Ethernet (also called Fast Ethernet,) which caps at 100 megabits per second (or about 13 megabytes per second), and Gigabit Ethernet, which caps at 1 gigabit per second (or about 150 MBps). In other words, it takes about a minute to transfer a CD's worth of data (around 700 MB or about 250 digital songs) over an Ethernet connection. With Gigabit Ethernet, the same job takes about five seconds. In real life, the average speed of an Ethernet connection is about 8 MBps, and of a Gigabit Ethernet connection is somewhere between 45 and 100 MBps. The actual speed of a network connection depends on many factors, such as the end devices being used, the quality of the cable and the amount of traffic.

Rule of thumb: The speed of a single network connection nasa retro space travel poster the grand tour iphone case is determined by the slowest speed of any party involved, For example, in order to have a wired Gigabit Ethernet connection between two computers, both computers, the router they are connected to and the cables used to link them together all need to support Gigabit Ethernet (or a faster standard), If you plug a Gigabit Ethernet device and an regular Ethernet device into a router, the connection between the two will be capped at the speed of Ethernet, which is 100 Mbps..

In short, LAN ports on a router allow Ethernet-ready devices to connect to one another and share data. In order for them to also access the internet, the router needs to have a Wide Area Network (WAN) port. On many routers, this port may also be labeled the internet port. Switch vs. hub: A hub and a switch both add more LAN ports to an existing network. They help increase the number of Ethernet-ready clients that a network can host. The main difference between hubs and switches is a hub uses one shared channel for all of its ports, while a switch has a dedicated channel for each one. This means the more clients you connect to a hub, the slower the data rate gets for each client, whereas with a switch the speed doesn't change according to the number of connected clients. For this reason, hubs are much cheaper than switches with the same number of ports.

However, hubs are largely obsolete now, since the cost of switches has come down significantly, The price of a switch generally varies based on its standard (regular Ethernet or Gigabit Ethernet, with the latter being more expensive), and the number of ports (the more ports, the higher the price), You can find a switch with just four or up to 48 ports (or even more), Note that the total of extra wired clients you can add to a network is equal to the switch's total number of ports minus one, For example, a four-port switch will add another three clients to the network, This is because you need to use one of the ports to nasa retro space travel poster the grand tour iphone case connect the switch itself to the network, which, by the way, also uses another port of the existing network, With this in mind, make sure you buy a switch with significantly more ports than the number of clients you intend to add to the network..



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