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Types of networks

Local area network: a computer network that links devices within a building or group of adjacent buildings.

Wide area network: a computer network in which the computers connected may be far apart, generally having a radius of half a mile or more.

There's a huge difference between client/server and peer-to-peer networks. For instance, a peer-to-peer network has no central server. Each workstation on the network shares its files equally with the others. There's no central storage or authentication of users.

Network Hardware

Modem:A combined device for modulation and demodulation, for example, between the digital data of a computer and the analog signal of a telephone line.

 

Network Interface Card(NIC):A computer hardware component that allows a computer to connect to a network. NICs may be used for both wired and wireless connections.

 

Wireless Adapter: A device that adds wirelessconnectivity to a laptop or desktop computer. All of the adapters below are available as external USB modules as well as PCI or PCI Express (PCIe) cards that plug into an empty slot on the motherboard.

 

Router: a power tool with a shaped cutter, used in carpentry for making grooves for joints, decorative moldings, etc.

Networks Operating Systems

Microsoft Windows Sever:Windows Server is a brand name for a group of server operating systems released by Microsoft. It includes all Windows operating systems branded "Windows Server", but not any other Microsoftproduct.

Linux:is a freely distributable, cross-platform operating system based on Unix that can be installed on PCs, laptops, netbooks, mobile and tablet devices, video game consoles, servers, supercomputers and more

 

Apache:a freely available Web server that is distributed under an "open source" license.

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