Office automation systems, also called OAS by their acronym in English (Office Automation Systems) consist of applications designed to help the daily work of an organization's administrator. This type of software includes word processors, spreadsheets, presentation editors, email clients, etc. When several of these applications are grouped together in the same software package to facilitate their distribution and installation, the group is known as an office suite.

Perhaps the most popular software package that can fit the definition of OAS (and that of an office suite) is Microsoft Office in any of its versions. This software, belonging to the Microsoft company, officially works under the Microsoft Windows and Apple Mac OS operating systems, although it also works on Linux if emulators are used.

There are other office suites available to any user that are freely distributed, some of them are:

• - StarOffice.

• - OpenOffice.org.

• - KOffice.

• - Gnome Office").

• - LibreOffice.

Currently, with the emergence of the Web 2.0 philosophy, online office suites are proliferating, which are nothing more than applications that fulfill the same functions as the classic desktop OAS, but available to be used on some Internet portal. These suites have the advantage that a user can work with their own documents from any computer connected to the Internet. Furthermore, in these systems it is usually very easy to share documents, thus facilitating collaborative work. Some of these suites are:.

• - Google Docs and Sheets") from Google.

• - Zoho.

• - Peepel.

• - Information systems.

• - Hospital information systems.