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What is a Network Switch?

What is a Network Switch?

What is a Network Switch?

A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.

A network switch is a multiport network bridge that uses hardware addresses to process and forward data at the data link layer (layer 2) of the OSI model. Some switches can also process data at the network layer (layer 3) by additionally incorporating routing functionality. Such switches are commonly known as layer-3 switches or multilayer switches.

Switches for Ethernet are the most common form of network switch. The first Ethernet switch was introduced by Kalpana in 1990. Switches also exist for other types of networks including Fibre Channel, Asynchronous Transfer Mode, and InfiniBand.

Unlike less advanced repeater hubs, which broadcast the same data out of each of its ports and let the devices decide what data they need, a network switch forwards data only to the devices that need to receive it

What is a Router?

What is a Router?

What is a Router?

router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets. A packet is typically forwarded from one router to another router through the networks that constitute an internetwork until it reaches its destination node.

A router is connected to two or more data lines from different networks. When a data packet comes in on one of the lines, the router reads the network address information in the packet to determine the ultimate destination. Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey.

The most familiar type of routers are home and small office routers that simply forward IP packets between the home computers and the Internet. An example of a router would be the owner’s cable or DSL router, which connects to the Internet through an Internet service provider (ISP). More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, software-based routers also exist.

What is a Chromebook?

What is a Chromebook?

What is a Chromebook?

Chromebook is a laptop of a different breed. Instead of Windows 10 or macOS, Chromebooks run Google’s Chrome OS.

These machines are designed to be used primarily while connected to the Internet, with most applications and documents living in the cloud. Chromebooks run Chrome OS, Google’s operating system, so they heavily feature Google’s suite of applications and often times rely on a working Internet connection. Although you can log in to Chrome OS as a guest, we recommend you log in to the system with a Google account to have the best experience.

Chromebooks are affordable and offer decent performance, and the introduction of Android apps is increasing their capabilities. Microsoft is fighting back with claims that Windows 10 S mode will give laptops better performance and battery life, but if you’re looking for a simple way to get online and you prefer Google’s services, you’ll be happy with a Chromebook.

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