A computer virus is a form of malicious software that piggybacks onto legitimate application code in order to spread and reproduce itself. Like other types of malware, a virus is deployed by attackers ...

Computer Trojans received their name from the infamous mythological horse. The Trojan’s basic mission is to mislead people of its real goal. A Trojan is malicious software that usually needs to be ...

Software is a program that enables a computer to perform a specific task, as opposed to the physical components of the system (hardware). This includes application software such as a word processor, ...

A VPN is simply an encrypted connection between two computers, each side running VPN software. The two sides, however, are not equal. The software that you, as the user of a VPN service deal with, is ...

System VMs rely on hypervisors as a go-between that give software access to the hardware resources. The hypervisor emulates the computer’s CPU, memory, hard disk, network and other hardware resources, ...

Bjarne Stroustrup, the creator of the C++ programming language, once said that "our civilization runs on software." This statement is impressively backed by reality, in which software controls a huge ...

Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

The complex and demanding railway transportation sector requires computer hardware and software that is secure, durable and offers high performance. Many of the currently evolving technologies in the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Investopedia / Joules Garcia Cloud computing ...