EVERYTHING ABOUT ALL

Portable computers have all but replaced old-fashioned slide projectors and over head
projectors as the source of presentations. Instead of using 35mm photographic slides
or 8.5 by 11 inch overhead transparencies, more and more people are using software to
create colorful slide shows and animated presentations. These images can be shown
directly from the computer's disk and displayed on the PC's screen or projected on a
wall or large screen.

To get these presentations onto the "big screen" data projectors are becoming increa-
singly common. A data projector plugs into one of the computer's ports and then
projects the video output oto an external surface.


Newer models use digital light processing (DLP) technology to project brighter, crisper
images. DLP devices use a special microchip called a digital micromirror device, which
actually uses mirrors to control the images display. Unlike LCD-based projectors, DLP
units can display clear images in normal lighting conditions.

Compuetrs can many, many kinds of graphics from simple line drawings to three-dimensional
animations. But all graphics files fall into one of two basic categories, known as
bitmapped and vector files.



A grid, called a bitmap, whose cells are filled with one or more colors. The
individual cells in the grid can all be filled with the same color or each cell can
contain a different color. The term raster is sometimes used to describe bitmap
images. Bitmap images also may be reffered to as bitmapped images. The easiest way
to imagine how bitmaps work is to think of your computer's monitor. It displays images
as collections of individual colored pixels. Each pixel is a cell in the grid of a
bitmapped image. In fact, the individual pieces that make up a bitmapped image are
often called pixels.

VECTOR

A set of Vectors, which are mathematical equations describing the size, shape,
thickness, position, color, and fill of lines or closed graphical shapes.

Some types of graphics programs work with bitmaps; some work with vectors; and some
can work with both. Each type of graphics file has its own advantages and disadvantages
Vector-based software is your best choice if you want the flexibility of resizing an
image without degrading its sharpness, the ability to reposition elements easily in
an image, or the ability to acheive an illustrative look as when drawing with apen or
pencil.

Adobe Photoshop is a  editing software which is normally use for photo editing or more. Use of adobe photoshop is little hard for beginners. Its not so hard when we practicing daily we learn it
 from google ,internet, or you tube. It edits the photos like professional ,we also learn its course.
It is published  by adobe system for macOS and windows. In this software we edit photos by using many tools like,pen tool.bush tool or many others.
This is the best software for editing photos use and enjoy the  software.