Microsoft Office Tutorials and References
In Depth Information
Application Software
Figure 26
Windows 7 starting screen
icon (additi onal
icons might appear
on your screen)
mouse pointer icon
Start button
default ta skbar icons
notificat ion area
tas kbar
Windows 7, the newest version of the Windows operating system, requires a
computer with at least a 1 GHz processor, 1 GB of RAM for the 32-bit version or 2 GB of
RAM for the 64-bit version, a DirectX 9 graphics processor, 128 MB of specialized
graphics RAM, and a 16 GB of available space for the 32-bit version or 20 GB for the
64-bit version. Keep in mind that these are the minimum recommendations.
Utilities are another category of system software that augments the operating system
by taking over some of its responsibility for allocating hardware resources. Many
utilities come with the operating system, but some independent software developers offer
utilities for sale separately. For example, Norton Utilities is a very popular collection of
utility software.
Device drivers are also considered system software. As you learned earlier in the
section on data communications, device drivers handle the transmission protocol between a
computer and its peripherals. When you add a device to an existing computer, part of its
installation includes adding its device driver to the computer’s confi guration.
The last type of system software is computer programming languages , which a
programmer uses to write computer instructions. The instructions are translated into
electrical signals that the computer can manipulate and process. Some examples of popular
programming languages are BASIC, Visual Basic, C, C++, C#, Java, and Delphi.
Application Software
The primary factor in choosing specifi cations for a computer you purchase is the
software you, or in this case, Elizabeth and Scott’s employees, will be using. Application
software enables you to perform specifi c computer tasks, such as document production,
spreadsheet calculations, and database management.
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