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Este Cmap, tiene información relacionada con: cap_1, WAN definition Is used for cities, and bigger places more than 1km, Networks Disadvantages Increased risk of insecurity. Because hackers or viruses, Ring Disadvatages If a single machine is switched off, the network doesn't work -If a cable breaks, the network doesn't work, Computer networks for the home and small business can be built using wired or wireless technology. Wired LANs versus Wireless LANs WAN, Networks Disadvantages Networks are often complicated, hey need expensive expert staff to look after them, Networks Acording to the physical layout Ring, Bus Disadvantages -If there is a problem with the central cable, the entire network stops working -If there are a lot of workstations on the network, data can travel slowly. -Limited cable length and a maximum number of workstations, Ring Advantages -Transmission of data is fairly simple as it only travels in one direction -No data collisions -Extra computers can be added easily with little effect on performance although you have to shut down the network to be able to do this., Networks Advantages Programs can be shared, software packages can be installed onto the file server and accessed by all individual workstations at the same time., Networks Disadvantages As the number of users increase on the network, the performance of the system can be affected and things start to slow down., Computer networks for the home and small business can be built using wired or wireless technology. definition About wireless LANs.- Use waves and wireless network adapters. Usually provide a connection to the Internet using an access point., About wired LANs.- Use twisted-pair cables and network adapters. Two computers can be directlyconnected to each other using an twisted-pair crossover cable.Generally also require central devices like hubs or switches to add more computers. Routers are also need to accessto Internet. ???? Is time-consuming and difficult to run cablesunder the flooror through walls, especially when computers are in different rooms., Peer-to-Peer are good choices for -There are 10 users or fewer. -Users share resources, but no specialized servers exist. -Security is not an issue., Networks Advantages Data can be shared by all users at the same time. Many people can access or update the information held on a database at the same time, Star Advantages -Star networks are very reliable. If one connection fails, it does not affect other users -Very few data collisions as each workstation has its own cable to the server -No workstation can interact with another without going through the server first, Star Disadvantages -The most expensive network to install because of the amount of cables needed -Installing the network usually needs experts to set it up -Extra hardware such as hubs and switches may be needed, Bus Advantages -Easy to install -Easy to add extra workstations -Uses less cable than a Star network -Best choice for temporary networks, Server-Based are good choices for -The users are limited only by server and network hardware -Extensive and better resource and user security -Centrally located for network control; requires at least one knowledgeable administrator, Computer networks for the home and small business can be built using wired or wireless technology. definition About wired LANs.- Use twisted-pair cables and network adapters. Two computers can be directlyconnected to each other using an twisted-pair crossover cable.Generally also require central devices like hubs or switches to add more computers. Routers are also need to accessto Internet., Networks Acording to the geographycal area WAN