Graphical User Interface ( GUI )
*Software that works at the point of contact (interface) between a computer and its user, and which employs graphic elements (dialog boxes, icons, menus, scroll bars) instead of text characters to let the user give commands to the computer or to manipulate what is on the screen. GUI elements are usually accessed through a pointing device such as a mouse, pen, or stylus. All programs running under a GUI use a consistent set of graphical elements so that once the user learns a particular interface, he or she can use all programs without learning additional or new commands. Pioneered by Xerox and developed by Apple computers, GUI is now employed by all modern operating systems and application programs.
Word Processor
*A computer system or program designed for word processing.
Spreadsheet
*A table of values arranged in rows and columns. Each value can have a predefined relationship to the other values. If you change one value, therefore, you may need to change other values as well.
*Spreadsheet applications (sometimes referred to simply as spreadsheets) are computer programs that let you create and manipulate spreadsheets electronically. In a spreadsheet application, each value sits in a cell. You can define what type of data is in each cell and how different cells depend on one another. The relationships between cells are called formulas, and the names of the cells are called labels.
Database Management System (DBMS)
*A collection of programs that enables you to store, modify, and extract information from a database. There are many different types of DBMSs, ranging from small systems that run on personal computers to huge systems that run on mainframes. The following are examples of database applications:
Utility Suites
*A program that performs a specific task related to the management of computer functions, resources, or files, as password protection, memory management, virus protection, and file compression.
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