Antivirus software is used for safe guarding the computer and protects
from worms trojons and viruses.
Spyware is soft ware that watches over what
you are doing and usage
A firewall is software or hardware that checks information
coming from the Internet or a network, and then either blocks it
or allows it to pass through to your computer, depending on
your firewall settings.
Disk formatting is the process of preparing a data storage
device such as a hard disk drive, solid-state drive, floppy disk or
USB flash drive for initial use. In some cases, the formatting
operation may also create one or more new file systems.
File transfer is a generic term for the act of transmitting files
over a computer network like the Internet. There are numerous
ways and protocols to transfer files over a network.
In the maintenance of file systems, defragmentation is a
process that reduces the amount of fragmentation. It does this
by physically organizing the contents of the mass storage device
used to store files into the smallest number of contiguous
regions