Computer Network Power Point
- 1. Name: Saeed Almehairi Grade: 10AB Computer Network
- 2. What is a Computer Network? • A computer network or data network is a telecommunications network which allows computers to exchange data
- 3. What is a Network Structure? • Network topology is the layout or organizational hierarchy of interconnected nodes of a computer network. Different network topologies can affect throughput, but reliability is often more critical.
- 4. Want is a Communications protocols? • A communications protocol is a set of rules for exchanging information over network links. In a protocol stack (also see the OSI model), each protocol leverages the services of the protocol below it.
- 5. What is a Overlay network? • An overlay network is a virtual computer network that is built on top of another network. Nodes in the overlay network are connected by virtual or logical links.
- 6. What is a Network interfaces? • A network interface controller (NIC) is computer hardware that provides a computer with the ability to access the transmission media, and has the ability to process low-level network information.
- 7. What is a Network links? • The transmission media (often referred to in the literature as the physical media) used to link devices to form a computer network include electrical cable (Ethernet, HomePNA,power line communication, G.hn), optical fiber (fiber- optic communication), and radio waves (wireless networking). In the OSI model, these are defined at layers 1 and 2 — the physical layer and the data link layer.
- 8. What is a Ethernet? • Ethernet, sometimes simply called LAN, is a family of protocols used in wired LANs, described by a set of standards together calledIEEE 802.3 published by the Institute of Electrical and Electronics Engineers.
- 9. What is a Wireless LAN? • Wireless LAN, also widely known as WLAN or WiFi, is probably the most well-known member of the IEEE 802 protocol family for home users today. It is standarized by IEEE 802.11 and shares many properties with wired Ethernet.
- 10. Information • I gathered most of my information from • http://en.wikipedia.org/wiki/Computer_netw ork and I wrote some using my own sentences.