Firewall A program or device which serves as an intelligent and secure router of network data packets. A program or feature that allows the transfer of files to one computer to another computer across the Internet. G Top of Page Gateway A computer system that transfers data between normally incompatible applications or networks. The filename extension for graphic files in a format developed by CompuServe. Gopher A menu-based server system for finding and retrieving resources on the Internet.
Gopher is text based.
A person who deliberately breaks into computer systems for entertainment, gain, or spite. The most sophistocated hackers spend all of their time breaking into computers. The risk that these people pose is that they often steal or damage software systems and information. Hexadecimal A number system that uses 16 as the base. Hexadecimal numbers are often indicated with the letter H, a dollar sign, or a subscripted 16 after the number.