System restore (roll back), disk defragmentation, control panel, system maintenance tools, virus pro

System restore (roll back), disk defragmentation, control panel, system maintenance tools, virus pro

1. System restore (roll back)

   • System restore is the process of replacing lost or corrupt data by replacing it with an earlier backup.

2. Disk defragmentation

   • Files are stored on computer systems that can, over time, become fragmented. This means that they are split and stored on different parts of the disk. If a file is fragmented, it takes longer for the disk heads to move between parts of the file, which slows the process of loading it.
   • Defragmentation is the process where files are physically re-arranged on disk so that they are no longer fragmented and the parts of each file are stored together. This improves the speed of accessing data from disk.

3. Control panel

   • Many operating systems use a control panel to give the user control of software and hardware features. It enables the user to change settings, such as sound, device and display settings all from one convenient location.

4. Virus protection

   • A virus is a computer program that is able to copy itself onto other programs often with the intention of maliciously damaging data. The consequences of a virus spreading can have catastrophic effects on computer systems, and therefore need to be prevented.
   • There are many thousands of known viruses, and new viruses are created daily. Virus protection software therefore needs to be updated regularly to combat these.

5. Firewall

   • A firewall can be a software or hardware security system that controls the incoming and outgoing network traffic. Packets of data are analysed to determine whether they should be allowed through or not

Imágenes y archivos del mapa