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Unit 4 (Local Area Network (LAN) (A network that connects a relatively…
Unit 4
Local Area Network (LAN)
A network that connects a relatively small number of machines in a relatively close geographical area
Small network, short distance like a building a room. Usually one kind of technology throughout the LAN serve a department within an organisation
Wide-area network (WAN)
A network that connects two or more local-area networks over a potentially large geographic distance.
The Internet as we know it today, is essentially the ultimate wide-area network, spanning the entire globe
Packet swithcing
To improve the efficiency of transferring information over a shared communication line, messages are divided into fixed-sized, numbered packets
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Benefits of Netowrks
Sharing hardware or software. For example, print document
Centralize administration and support. For example, internet-based, so everyone can access the same administration or support application from their PCs
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Bluetooth
what is Bluetooth?
Bluetooth is a wireless technology used to transfer data between different electronic devices. The distance of data transmission is small in comparison to other modes of wireless communication. This technology eradicates the use of cords, cables, adapters and permits the electronic devices to communicate wirelessly among each other.
Bluetooth is a high-speed low-power microwave wireless link technology, designed to connect phones, laptops, RDAs and other portable equipment together with little or no work by the user.
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