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                                                                   Network Topology A network topology refers to the layout of the computers and devices in communications network. Two types of network topology:   Physical topology :   The arrangement of cabling.  Logical topology   :   T he path that data travels between computers on a network.                                                                                                                    Different between bus, star and ring...

what is web server?

Category Client/Server Peer-to-Peer Size For medium and large network For small network fewer than 10 computers. Operating System Needs a specific operating system such as Windows Server 2008. Does not need a specific operating system Training Needs training Does not need training Set up More difficult to set up Easy to set up Installation More expensive to install Less expensive to install

What is network A network is a collection of computers and devices connected together via communications devices and transmission media. Communication device and transmission media Devices Description Dial-up Modem A communications device that can convert digital signals to analog signals and analog signals to digital signals, so that data can travel along an analog telephone line. Digital Modem (ISDN,DSL, Cable Modem) A communications device that sends and receives data and information to and from a digital line. Wireless Modem Some mobile users have a wireless modem that uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device. Network Card Sometimes called a network interface card, is a communications device that enables a computer or device that does not have built-in networking capability to access a network. Wireless access point A central communications device that allows computers and dev...