Unit 2 Task 2

All computers are unable to function without an operating system; an operating system is a program that allows applications software to communicate with the hardware.

Peripheral devices;

Peripheral devices are external devices that plug into the computer such as a keyboard, a mouse, a webcam, monitor etc. The device management controls the peripheral devices by sending them a message in their own language. The operating system controls all of the external devices.

Security;

Security measures need to be taken to ensure that the operating system needs to be sure nothing can gain unauthorised access to the computers data and so no harm can be caused. This protects data from threats and viruses and ensures everything on the computer stays confidential. This is things such as password barriers and firewalls. Firefox is one example of a firewall that protects the computer from any hacking and viruses.

File management;

File management is used to enable you to keep track and organise all your files on the system. It allows you to create new files and open and edit any of your existing files.

Device drivers;

A device driver is what links the peripheral devices to the operating system of the computer. The driver needs to be installed every time a new external device is added to the computer.