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Operating System Functions (Part 4)Operating System Functions (Part 4)7. Configuring Devices The functions of devices attached. with the computer are controlled by the special system software called device drivers. The device driver tells the operating system how to communicate with a device. Each device has its own device driver. When you boot a computer, the operating system loads each device’s driver. If you attach a new device or hardware such as scanner to computer then you have to install its driver. Usually the operating system has the built-in device drivers for commonly used input/output devices such as mouse, keyboard, etc. The operating system automatically installs these drivers. 8. Establishing Internet Connection The operating system also provides means to establish a connection between your computer and the ISP (Internet Service Provider) Server. Some operating systems also have built-in browser program used to access the information on Internet. The information downloaded from the Internet is managed by the operating system in RAM as well as in the disk. 9- Controlling Network Some Operating systems are specially developed, for networking. These operating systems are called the network operating systems or NOSs. A network operating system organizes and co-ordinates multiple users and makes it possible to access and share resources on network. The account of new user is created on the network as well as the account of old user is deleted if required. The overall functions of users are controlled by the network operating system. The network operating system also has security features. Each user on the network is required to give a user name and password to access the network. The account of users cannot be accessed by un-authorized persons.
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