In computing, virtualization means to create a virtual version of a device or resource, such as a server, storage device, network or even an operating system where the framework divides the resource into one or more execution environments. Even something as simple as partitioning a hard drive is considered virtualization because you take one drive and partition it to create two separate hard drives. Devices, applications and human users are able to interact with the virtual resource as if it were a real single logical resource. The term virtualization has become somewhat of a buzzword, and as a result the term is now associated with a number of computing technologies including the following:
storage virtualization: the amalgamation of multiple network storage devices into what appears to be a single storage unit.
server virtualization: the partitioning a physical server into smaller virtual servers.
operating system-level virtualization: a type of server virtualization technology which works at the operating system (kernel) layer.
network virtualization: using network resources through a logical segmentation of a single physical network.
- Virus (Computer Virus)
A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are man-made. A simple virus that can make a copy of itself over and over again is relatively easy to produce. Even such […]
- virus disinfection
A function of an antivirus program which attempts to remove and disinfect infections on the computer system including viruses, worms and Trojan horses. Disinfection in antivirus programs may also detect and remove unwanted applications as well.
- virus protection
Virus protection software is designed to prevent viruses, worms and Trojan horses from getting onto a computer as well as remove any malicious software code that has already infected a computer. Most virus protection utilities now bundle anti-spyware and anti-malware capabilities to go along with anti-virus protection. Internet security suites go a step further by […]
- Virus Scanner
(n.) A type of antivirus program that searches a system for virus signatures that have attached to executable programs and applications such as e-mail clients. A virus scanner can either search all executables when a system is booted or scan a file only when a change is made to the file as viruses will change […]
- virus signature
A unique string of bits, or the binary pattern, of a virus. The virus signature is like a fingerprint in that it can be used to detect and identify specific viruses. Anti-virus software uses the virus signature to scan for the presence of malicious code.