Spreadsheet Software
Spreadsheet software, from the cell (CELL) made up of columns (ROW) and column (COLUMN) consisting of tables (TABLE), each cell can be set to the formula (FORMULA) to generate the association with other information, when a storage grid data changes, the program may be in accordance with their own formulas to update the information associated with the cell.

SQL Structured Query Language
Structural Database (DATABASE) query (QUERY) language, developed by IBM's relational database management system (RDBMS) access to data used by the instruction, the original name for the SEQUEL (STRUCTURED ENGLISH QUERY LANGUAGE). ANSI in 1986 years, the basic definition of a set of SQL standards, but in products from various manufacturers to add a self-defined extension of the specification, 1991 ANSI standard SQL update, known as SAG SQL.

Spy ware
Often without your consent secretly installed on your computer. Such software may monitor your online habits, and record your passwords, credit card information, or other e-commerce information, usually it will forward the information transferred to third-party companies, or the information Naqu engaged in illegal had occurred. This software is often difficult from your computer hard disk to find out.