Computer Networks
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Resources for Computer Networks.
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Ways of securing computer networks
Access authorization restricts access to a computer to group of users through the use of authentication systems.
Open resource →Revision NotesCommon network environments
A local area network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an…
Open resource →Revision NotesInternet and its evolution
The Internet, sometimes called simply "the Net," is a worldwide system of computer networks - a network of networks in which users at any one computer…
Open resource →Revision NotesModem and its Purpose
It is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted…
Open resource →Revision NotesUse of Bluetooth and Wifi in Network
Bluetooth can be defined as a wireless form of communication that enables devices to send and receive communication.
Open resource →Revision NotesDifference between analogue data and digital data
Analogue data is represented in a continuous form, as contrasted with digital data having discrete values.
Open resource →Revision NotesCommon devices used in a computer network
Let’s now look at the various components that are used in a LAN and in a WAN.
Open resource →Revision NotesNetwork Topologies
A computer network topology is the physical communication scheme used by connected devices.
Open resource →Revision NotesWhat is a computer network?
A computer network is a group of interconnected computers. A network is a collection of computers and devices connected to each other.
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