1) Definition of network . a) Network allow computer to share resources , such as hardware, software, data and information . b) Sharing resources saves time and money .  c) A collection of compters and devices connected together via communication devices and transmission media . d) The design of computers, devices and media on network . 2) Examples of transmission media (physical/wired) a) modem b) twisted-pair cable c) switch d) coaxial cable e) fiber optic cable 3) Definition of transmission media . a) Connect computer with entertainment devices (TV, game consoles, stereo system) and get entertainment online (video-youtube)   b) Sharing resources saves time and money . c) Material or substances media capable of carrying one or more signals in a communications channel  4) Definition of computer network . a) A communication system thats connects two/more computers and their peripheral devices to exchange information, share resources and communicate electronically .  b) A collection of computers and devices that connected together via communication devices and transmission media c) Sharing resources saves time and money . 5) Examples of transmission media (wireless) a) cellular radio b) router c) infrared d) hub e) satellite f) broadcast radio (bluetooth) 6) State the advantages of network . a) facilitating communications b) can connect multiple network c) sharing data and information d) sending messages e) transferring funds f) exchange files 7) Definition of communication devices a) Central nodes that coordinates the flow of data by sending messages directly between sender and receive nodes . b) Hardware component that enables a computer to send (transmit) and receive data, instructions and informations from one to one /more computer .   c) Devices that enable analog signal connect computer by telephone . d) To connect wireless network devices to wireless network . 8) Examples of communications devices . a) modem b) NIC c) twisted-pair cable d) hub e) coaxial cable 9) The disadvantages of network . a) Entertainment b) Lack of privacy c) Sharing Internet access d) undesirable sharing e) loss of productivity 10) Identify one of the communications devices (not portable) and one of the transmissions media . a) Internet b) Wireless router  c) twisted-pair cable d) wireless computer e) modem 11) ' It can be use in transferring big data in a very high speed ' is statement for  a)  communications satellite b) microwave c) satellite d) broadcast radio e) fiber optic 12) ' The device that provides a common central connection point for multiple devices/nodes on network ' is definition for a) modem b) hub c) NIC (network interface card) d) router e) switch 13) Choose the term for modem . a) multiple network b) central connection point c) telephone line d) multiple network e) analog f) wireless devices

2.1 BASICS CONCEPT OF NETWORK

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