English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

what is an projector and the advantages and disadvantages of using it and is it expensive

2006-09-26 01:39:52 · 5 answers · asked by life4star2004 1 in Computers & Internet Hardware Other - Hardware

5 answers

A good projector costs thousands of dollars. Replacement bulbs cost almost $1000.

They give you a huge viewing area and are fun to watch movies with or play computer games.

2006-09-26 01:42:25 · answer #1 · answered by IT Pro 6 · 0 0

there are so many kind of projector. you should specify one.
but the most common projector is an OVERHEAD PROJECTOR

An OVERHEAD PROJECTOR is a display system that is used to display images to an audience. They typically consist of a large box containing a very bright lamp and a fan to cool it, on top of which is a large lens that collimates the light. Above the box, typically on a long arm, is a mirror that redirects the light forward instead of up.

ADVANTAGE: MANY PEOPLE CAN HAVE A VIEW
DISADVANTAGE: should be in a dark place(not totally dark), need a wide open space area and a white flat surface


Transparencies are placed on top of the lens for display. The light from the lamp travels though the transparency and into the mirror where it is shone forward onto a screen for display. The mirror allows both the presenter and the audience to see the image at the same time, the presenter looking down as if writing, the audience looking forward at the screen.

2006-09-26 01:46:32 · answer #2 · answered by marav 2 · 0 0

A projector is just a machine that projects an image onto a wall or a projector screen. They can be dirt cheap or extremely expensive depending on the quality of the machine you look at. Replacement bulbs are usually where they hit you in the wallet, as some are very expensive.
Excellent for infrequent home cinema use as you get a nice big image for a movie or whatever you wish. You cant leave a projector on all day unlike pc monitors as they get very hot, s not recommended for pc screen.

2006-09-26 01:45:42 · answer #3 · answered by stuntdouble_uk 3 · 0 0

the fairly some damaging posts right here related to projectors are slightly old and are much less of a controversy as they as quickly as have been, projector technologies has made massive strides forwards over the previous few years and the various themes in the previous linked with them whether no longer long gone all mutually are actually not the themes they as quickly as have been. There are additionally lots of categories of projectors which utilise distinctive technologies so which you would be able to seem in to them and the fairly some execs and cons linked to each and each. You seem speaking of a promptly decision between the two nevertheless wherein case i might propose you going for a good classic show screen fairly than projector. Projectors are super exciting and interior the final condition are impossible to beat yet i might see them as an addition fairly than achievable decision to a widely used show screen. execs you may evaluate comprise fan noise, the reality you may blacken the room for good assessment and achievable consumable expenditures. For each and daily use a classic television is your superb wager. in case you have a good television a undertaking is something that i might use on particular events mutually with for staring at movies and carrying activities etc.

2016-10-18 00:08:33 · answer #4 · answered by Anonymous · 0 0

A projector is a very expensive piece of equipment, especially the lens... the advantage is that you have a large screen, can install different machines (pc, X-box, dvd) but the disadvantage is that your eyes start hurting if you watch too long...

2006-09-26 01:45:06 · answer #5 · answered by Timothy 1 · 0 0

fedest.com, questions and answers