Peripheral management controls peripheral devices by sending commands. The software routine that knows how to deal with each device is known as a driver. The OS needs drivers for peripherals connected to the computer. When a new peripheral is added the device's driver is installed into the OS. The OS communicates with with the computers peripherals via the software drivers for the devices. The OS controls the whole machine and it also controls peripherals like keyboards, mouses and printers.
Security is key to protecting you computer from unwanted users. This is normally done by setting a password that needs to be used before you can gain access to the device. If you share a computer with other people e.g a family desktop and you don't want other members of your family to access your documents you can create multiple profiles with different passwords. However not all unwanted access con be stopped by a password as there is also a threat from computer viruses. A computer virus is a program or piece of computer code that gets loaded onto your computer without your knowledge and runs against your wishes. Viruses can replicate themselves gradually taking up all the computers memory bringing the system to a halt. Thankfully there are many antivirus programs that can be downloaded to protect your computer from viruses.
A file management system or file system is used by the operating or a program to keep track of files. It allows the user to create new files and folders, edit existing ones and even close files without saving it. A file management system displays all your files and folders in one window. Each file will have a different icon depending on the program it was created in. When you open a folder it will display all the files in the folder.
A device driver is a piece of software that allows the OS to have easier access to peripheral devices. Each time a new peripheral device is added a new device driver is installed. Drivers for any device will change the OS. This means that video card companies can't make a driver for a specific OS.
www: good start to the task.
ReplyDeleteebi:
- you give examples of operating systems. E.G. Windows, Mac OS. and show where the OS allows the user to carry out the tasks.
- explain how you can have multiple users on one computer and how files can be protected (Security).
- as the question requests you must add images or screenshots to illustrate your evidence.
www: with the additions you have made this post now does illustrate and explain the purpose of operating systems. P2 achieved
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