Applied Science / Technology Essay


The Uses and Functions of the Projector

The understanding of the uses and functions of the projector dates back to its first product in history. It went through stages of development since the 1870s to the latest one which was produced in the late 1960s.

The projector had experienced years of improvement and development from the “Zoopraxiscope” which was first introduced back in the 1870s. The audience was astonished at beholding a glass disk, images strapped on it like a schoolbag behind a child, the image is directed towards the light and as it shines through it, the image begins to move. The object displayed the images on the soft glass disk.

The uses and functions of the projector are exemplified by having light shine through a medium and having the medium emit light on recognizable images. In 1895, Lumere developed his form of a projector, called the Cinematographe while Edison produced his Kinetoscope in 1891, and his Vitascope in 1896.

These inventions gave rise to public viewing centers as films could be displayed in the public through the use of these projectors of images. Through the years, development brought about more transformation which was effective. The carousel slide projector was copyrighted to David Hansen in 1965 but the digital projector which is used today was created in 1984 by Gene Dolgoff.

The projector is a simple outlet, a computer device functioning as an output device that displays images manufactured by a computer or a laptop and reproduces them on a concentrated slate or flat screen. Most times, in this sophistication, a projector is directed to a large and smooth surface to permit the accurate viewing of any presentation; a slide show or a movie.

A projector produces hurrying images (as controlled by someone) called slides and at some other times, it functions as a display for videos. The data projector is used for a large audience to ensure that a piece of displayed information is seen by everyone in such a large theatre.

The uses of the projector

A projector is used to present a PowerPoint presentation at a business meeting or a seminar: once, I partook in a seminar on Bitcoin and everything about the trade. The curators of the seminar shared pamphlets but it wasn't enough explanation on its own. A projector was produced and an already made slide was introduced to us. A slide has its explanation and elucidation by the seminarian. It met the aim of permitting the understanding of the seminar to a no-matter-how-large audience.

The projector is often used in the classroom: The society we live in now is sophisticated. It is not a society of 2 generations ago where there was little or no digitalization as it is today. Teachers make teaching effective by showing students what each concept they intend to explain looks like. In the academies, instructional materials are used; these could be pictures or videos and using a projector to present this to a large or small class is as important as the study.

A projector is used to present a movie through the TV or a computer device: a movie can be presented on a flat large screen using the projector. This makes viewing a movie easier especially with a large number of persons in the audience. It makes the crowd attentive because they could see what they are interested in seeing.

A projector is also used to present a demo of a product at a commercial center: We exist in a society where before you purchase a product, you’re graced to see a snippet or an advertisement of the product even at the commercial center such a product is made. CEOs and business moguls use the projector to commercialize their products by presenting their demos digitally.

Some use a projector in their homes to transform the wall of the house and give it an object of fascinating appearance.

With all these uses, even the functions of the projectors are seen. However, a brief elucidation must be made on the functions of the projector.

Functions of the Projector

Making efficient notes at a seminar: it is often difficult to listen and jot simultaneously. However, having the presentation of the information that is being shared verbally provides the room for attaining notes on the presentation through the digital means at the end of any lecture or seminar. By this, the focus would be geared to listening and taking a few notes for retention rather than base attention on writing without effective listening.

In also functions as a medium to teach with an effective display of instructional materials. As one of the uses of the projector is to display any information on a broad screen even in classes, instructional materials necessary for a group of students gain significance through the use of the projector. Students understand what they can see more than they hear. Hence, the projector permits the broad display of information, thus, the effective engagement of the students.

It functions as an effective tool for meetings: projector functions as a tool for display in conference rooms. The projector can either be connected to a laptop or a digital computer and then the show is on.

It also functions as a medium to carry a large number of people along with a slide presentation or a movie. Imagine that a room of 100 persons is to see a movie of James Spider, a protagonist in The Blacklist Series. However, in the stead of a projector, a TV or a digital computer is used. What would happen? Over 80% of the audience will grumble and murmur disgust at the initiative because they won't see the images. However, if the TV or the digital computer is connected with a projector and the big stage is lit up with the recognizable images of the movie, the whole 100 persons would be carried along without complaint.


The projector is a medium of presenting an image in the public with varied uses, uses which are made manifest by their functions. Different organizations also make use of the projectors during their programs. Organizations that could be civic organizations, governmental organizations, even the military makes use of the projector as much as churches make does.

Projectors can be seen almost everywhere today because it is presentation software that allows the creation of slideshow photos, written information in slides or PowerPoint mode, display graphs or videos. It can be connected with an S-video or the RCA cables or the USB connections. It magnifies the image on a laptop or a desktop on a large flat surfaceThe Uses and Functions of the Projector, soft light-emitting and displaying such a piece of information.

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