software that gathers information about a computer user's Internet travels without the person's knowledge, much like spyware. Adware sometimes accompanies downloaded software, usually with some written acknowledgment of the software's presence.
a utility program that examines a disk for data storage errors, from physical defects on the disk surface to weakened areas that might cause that space to be unreliable, and corrects any errors that it can.
hardware or software designed to give users secure access to the Internet or a company network. Firewalls are designed to prohibit unauthorized access to computer resources and files.
a special purpose command language included in applications, such as spreadsheet software and word processors. Although it is not a full-blown programming language, it is used to automate sequences within the application.
software developed for the purpose of being harmful. Malware includes spyware, worms, and viruses.
a collection of updates, corrections, or enhancements to a software program. A Service Pack can be downloaded as a single installable package.
storage channels on a disk or tape. On magnetic disks, a track is a concentric circle. CD and DVD tacks have one continuous spiral-shaped channel starting at the center and moving outward.
a database included in a Windows installation that records configuration information.
Windows Security Center
a feature that makes a computer more secure by alerting the user when the security software is not updated and identifying possible security threats.
Windows Vista Firewall
a bidirectional firewall that prohibits unauthorized access to a computer and stops many kinds of malware before it can infect the system.
Windows XP Firewall
a component of Service Pack 2 that prohibits unauthotized Internet traffic leaving the computer. It is not adequate protections against spyware.