Class XII - Computer Networks
Computer Networks : It is a collection of interconnected autonomous computing devices so as to exchange information or share resources. Networks : Advantages of Networks Disadvantages of Networks Share Resources : Such as Printers, Scanners. This is cheaper than buying equipment for each computer. Systems are more sophisticated and complex to run. Share Storage : Able to access files from any machines on the network can share data. If networks are badly managed, services can become unusable and productivity falls. Software Sharing : Software can be installed centrally rather than on each machine. Metering software can be used to limit the no. of copies being run at same time. This is much cheaper than buying licenses for each machine. If software and files are held centrally, it may be impossible to carry out any work