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Computer
Hardware : Refers to the objects
that you actually touch, such as the computer
itself and its inner workings, keyboard,
mouse, printer, scanner, disks, disk drives,
etc. These are your system's storage and
display devices.
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Computer Software :
Anything that can be stored electronically,
such as files and programs.
Systems Software :
These are your basic systems that manage
your computer on a very basic level. These
include such things as your operating system
(such as Windows 98, for example) or your
basic utilities that keep the computer running.
Applications Software
: This includes programs,
such as Microsoft Word, Microsoft Excel,
Rhinoceros, CorelDraw, etc. These programs
can not run without the systems software
defined above.
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Platform
: The underlying hardware
or software for a computer system. An example
of this would be a Pentel III computer running
on Windows 2000.
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Pixel :
Short for 'Picture element'. Your computer
screen's display is made up of thousands
- sometimes millions - of pixels that are
arranged in continuous lines and rows so
close to each other that they appear connected.
The density and color display can be adjusted
and is referred to as 'resolution'..
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Raster :
Refers to an image made up of pixels. These
images are also referred to as bitmaps and
are thus changeable by adjustments in resolution.
File formats for this type of image are
.jpeg, tiff, .tga and .bmp. Photographic
images are in raster format.
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Vector :
Vector format refers to an image made up
of lines that are mathematically defined
and can be manipulated. Drafting programs
use vector format.
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Wireframe :
Modeling in 3D space by defining edge boundaries
of objects. The look of a wireframe model
is a 3D object made up of straight and curved
lines.
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Surface Modeling :
Modeling in 3D space by creating and manipulating
surfaces that define the object created.
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Solid Modeling :
Modeling in 3D space by creating and manipulating
solids that have mass properties.
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Digital :
Refers to computer visualization and functions
as opposed to the human eye or hand in design
or modeling.
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CAD
: computer aided drafting/
computer aided design
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CAM
: computer aided manufacturing
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CAD/CAM :
computer aided design and manufacturing
combined.
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CAID :
computer aided industrial design.
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2D software/2D Programs
: Software applications
that create 2-dimensional images.
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3D Software/3D Programs :
Software applications that create 3-dimensional
images. These programs can usually be used
to draft 2D images as well.
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Computer :
A computer system is composed of the following
elements:
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Output devices
: The display screen and
printer
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Input devices :
The keyboard and mouse.
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Central Processing Unit (CPU) : This
element is the heart of the computer as
it executes all of the commands as well
as housing all of the data storage. All
of your other hardware devices plug into
it.
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Board :
A circuit board within your Central Processing
Unit that governs various aspects of that
unit's operation. Your CPU will use a number
of these circuit boards that perform different
functions.
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Graphics Card :
A circuit board within your Central Processing
Unit that drives graphics display. These
elements can range in price, depending on
the performance requirements of your software
applications.
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Hard Drive :
The mechanism in your CPU that reads and
writes data on to your hard disc, which
is the computer's long term storage device.
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Monitor :
The element of your computer that looks
like a television and which displays the
visual image.
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CD-ROM :
Stands for 'Compact Disc-Read-Only Memory.
A device in your computer that reads compact
discs. These discs typically have information
that you can download into your computer,
such as software programs. Traditionally,
the CD-ROM is only for bringing data into
the computer and can not be used to store
additional data. * At this writing, the
newer computers being sold now have started
to offer the ability to "burn"
aCD, meaning that you can now transfer data
to the CD as well as reading/transferring
from it.
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Memory : Internal
data storage area in your computer. This
term also refers to the data storage capacity
of your computer.
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Graphics Tablet/Drawing Tablet : Also
referred to as a 'Digitizing Tablet'. An
input devices that enables you to enter
drawings and sketches directly into the
computer. It is composed of an electronic
tablet and a cursor, or pen. The tablet
contains electronic elements that enable
it to detect movement of the pen over its
surface and to translate that movement into
a corresponding image on the display screen.
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Scanner :
A device that can read text or illustrations
printed on paper and can translate that
visual data into a form the computer can
use to display that same image on the display
screen. This process creates bitmap information.
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Digital Camera
: A camera that stores
images digitally, rather than recording
them on film. A picture can then be downloaded
into a computer system and manipulated using
a graphics program and printed.
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Ink Jet Printer :
A type of printer where ionized ink is sprayed
at a sheet of paper with magnetized plates
in the ink's path directing the pattern
the ink will take on the paper's surface.
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Laser Printer :
I type of printer that uses a laser beam
to produce the desired image on a drum.
This image picks up a electric charge that
attracts the toner that ultimately is transferred
to a sheet by heat and pressure. Copy machines
use the same technology.
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Digitizing :
Refers to capturing of 3D point data from
touch probe (contact) or laser (non-contact)
devices.