In what is considered the Information Age, we all need to communicate, be it for personal or business tasks. Computers and technology have become an integral part of our everyday lives, encompassing almost everything we do from making a phone call to sending out correspondence via email, fax or text and instant messages, and voice and video chat. We depend on technology to keep in touch with friends and family, as well as business colleagues and partners.
t is essential to transfer stored information across various geographical locations to process and complete a range of business activities. Computer networks provide a fast, dependable and accurate way of doing this in favor of a business domain.
Purpose of computer networks
From a user's point of view, there are many advantages of having a computer network. The major purpose of a computer network is to share hardware and software resources. In sharing hardware, you can access a printer connected to a remote PC, and you can allow one of your colleagues to use your own PC's CD-ROM from his computer.
Whenever you share software resources, you execute a software application in a remote server. The server will do all the processing while your computer does only the input and output, without using much processing power. This is especially beneficial when the client computers are less capable machines, whereas high-end servers are available to get the job done.
From a network administrator's perspective, a computer makes management of the computers easy and effortless. Regular tasks like maintenance, backup and new software installation will be a tedious task without a computer network. With a little help from a computer network, additional duties such as assistance, security allocation and monitoring becomes a piece of cake.
Computer networks can be classified in different measures. When categorizing networks, attributes such as size or the number of nodes in the network, the geographical spreading of the network and the technology used by the network...
It is essential to transfer stored information across various geographical locations to process and complete a range of business activities. Computer networks provide a fast, dependable and accurate way of doing this in favor of a business domain.
There are many advantages of having computer networks. You can share your hardware and software resources over a computer network. For example, you can share the printer that is connected to your computer with other colleagues at your office. You can also run a software application from a remote server using the network features, without having it installed in your computer. You can send and receive e-mails, do instant chatting and even connect your workplace internal PBX system into your computer network. From a network administrator's point of view, a network enables managing all the organization's computers from a central location. This includes installing software, maintenance tasks, security allocation...
What is "Wireless Communication?" you might ask. Wireless communication is transferring information through a distance without the use of wires or electrical conductors. The term wire-less says it all. The transfer of information might be of a short distance like the usage of a TV remote or a long distance like the use of radio communication to transfer information.
There are so many examples for wireless devices. Some of them are. mobile phones, two way radios, personal digital assistance (also known as a PDA), wireless networks, the GPS unit in cars, computer keyboards, satellite television and so many other electrical equipment that work without the two sources connected by electrical cord.
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