A program used to detect, trace, and eliminate errors in computer programs or other software
An application that reads file segments from non-contiguous(or non-continuous) sections of a storage device and then writes the files to the same device in such a way that each file segment is contiguous (or a continuous section)
Digital code attached to an electronic message or document, which is unique and which can be used to authenticate the sender or owner
Direct access file
A file organized in such a way that a calculation provides the address or location of a record so that the record can be accessed directly. Records can be ordered or unordered.
RAM set aside to speed up access to a hard drive
Network in which some or all of the processing, storage and control functions, in addition to input/output functions, are dispersed among its nodes.
In computer security, the process of transforming data into an unintelligible form in such a way that the original data cannot be easily obtained except by using a decryption process
Object that is created when an abnormal or unusual situation arises in a program. (EX: file not found... tries to open a file to read in information while the program is executing, but cannot find the file specified)
Program code that handles exceptions that arise during the running of a program