This is easily achieved by using a data projector. A data projector gives you the advantage of being able to show images from about 3ft to 30ft. Data projectors are generally compact units, which are very easy to use with MS PowerPoint presentation software, but you can project any image, which is on your computer.

The projector is linked via a supplied cable from the monitor output from your computer. The projector is basically operating as an external monitor.

The brightness of a projector image is measured in ANSI Lumens. Anything over 2500 ANSI Lumens can be used in most business environments without a problem. Projectors these days tend to give a brightness of 3000 ANSI Lumens upwards and some portable projectors will give a brightness of around 5000 ANSI Lumens.

It really depends on what your requirements are. Is it for a fixed installation, to be very portable, high brightness, lightweight etc? At Cetek, we can supply the right equipment to match your needs.

The resolution is the number of pixels (dots), which make up your computer image. Different computers can have different settings, but can often be adjusted if required. The most common type of resolution available is XGA (1024x768). Recently, however, SXGA (1280x1024) has become more common, mainly for use with design packages. There are projectors available for all resolutions.

Virtually all LCD projectors will also show video. They can also be linked to a standard DVD player, MiniDV deck or video camera, and can easily be switched between computer and video mode.

Glossary of Terms

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Amplifier
A device used to increase the strength of a signal. An electronic device that takes in an original signal, gives it more power and provides it as an output. È

ANSI
The American National Standards Institute is the organization that sets the standards for US A/V equipment.È

BNC
Bayonet Neill-Concelman. A cable connector used extensively in television and named for its inventor.È

CCTV
Closed Circuit Television. A distribution system which limits reception of an image to those receivers which are directly connected to the origination point by coaxial cable or microwave link.È

CD
Compact Disc. A disc on which information or sound is recorded digitally and reproduced by digital reading.È

CD-I
Compact Disc-Interactive. A format that provides audio, digital data, still (motionless) graphics and limited motion video.È

CD-ROM
Compact Disc-Read-Only Memory. A 4.75-inch laser-encoded optical memory storage medium with the same constant linear velocity (CLV) spiral format as compact audio discs and some video discs.È

CPU
Central Processing Unit. A computer's "brain"; the portion which reads the executes commands.È

CRT
Cathode Ray Tube. A vacuum tube that produces light when energised by the electron beam generated inside the tube.È

DAT
Digital Audio Tape. A method development by Sony and Hewlett-Packard for recording large amounts of information in digital form on a small cassette tape. It uses a rotating helical read/write head, similar to the technique used on a VCR.È

Distribution Amplifier
DA. A device that allows connection of one input source to multiple, isolated (buffered) output destinations such as monitors or projectors.È

DLP
Digital light processing!", See DMDÈ

DMD
Digital micro mirror device. In 1977, it was originally called "Deformable Mirror Device". Texas Instruments has developed DMD microchips used in DLP (digital light processing!") projector subsystems that hope to replace the 100-year old CRT technology. DMD chips use an array of mirrors and memory cells. A digital image is stored in the memory, and then projected when light is reflected onto the mirrors.È

DOS
Disk Operating System. A specialised disk-oriented program that provides a link between the user and the computer.È

DVD
Digital Versatile Disc. An optical disc about the size of a CD-ROM, but capable of storing an entire. movie. The technology uses MPEG-2 compression. Typical capacity for these discs is 4.5 GB, or about 133 minutes of digital video. Originally called "Digital Video Disk". È

Infrared
IR. Light waves just outside the visible spectrum; that is, waves slightly longer than those visible to the human eye. Infrared light is sometimes filtered out to reduce heat on film or slides.È

Infrared Control
A wireless medium of remote control, which sends signals to a device via pulses, transmitted in the infrared light spectrum. Its use is restricted to equipment within line-of-sight or reflection off a wall or ceiling. This is sometimes called "IR remote".È

Interactive Video
The fusion of video and computer technology. A video program and a computer program running in tandem under the control of the user.È

NTSC
The television standard for North America and parts of the South America having 525 lines / 60 Hz (60 Hz refresh), two fields per frame and 30 frames per second. National Television Standards Committee.È

Overhead Projector
A device that produces an image on a screen by transmitting light through a transparent material placed on the stage of the projector.È

PAL
Phase alternative line. A television standard in which the phase of the colour carrier is alternated from line to line. PAL, in many forms, is used in Australia, Scandinavia, South Africa, and Western Europe. PAL uses 625-line, 50-field composite colour transmission system.È

PAL-M
Brazilian version of PAL. This is broadcast standard with 525 lines and 60 fields per second.È

PC
Personal computer or projector control.È

Pentium
Intel's "586" CPU chip which execute both 16-bit and 32-bit instructions, now superceeded by dual core and quad core intel chips.È

Personal Computer (PC)
A computer designed for use by an individual person (or one at a time)È

Phantom Power
Power supplied to a microphone using the shield of a balanced audio connection. Microphones using phantom power must be condenser-style, designed for use with phantom power systems.È

RAM
Random Access Memory. RAM is volatile memory that can be written to and read from. RAM is the working memory where active programs and data are stored. RAM normally loses its contents when power is removed.È

Rear Screen Projection
A presentation method in which the image is projected through a translucent screen towards the audience. The slide or film must be reversed, or a mirror must be used to correct the image for rear screen presentation.È

RGB
Red, green and blue. The chroma information in a video signal. The basic components of the color television system. They are also the primary colours of light in the "addictive colour process".È

ROM
Read only memory. Permanent memory that can only be loaded once, normally by the manufacturer. Contents may not be altered or removed.È

SECAM
(Sequential Couleur Avec Mémoire) Translated as "sequential colour with memory". This system is used in France, Africa, Asia, Russia, Saudi Arabia and many Eastern European countries. It is similar to PAL, but produces colour signals in a different manner. SECAM uses 625 horizontal scan lines, 50 fields per second (650/50).È

Stereo
In audio, a process of using separate signals on separate channels for the left and right audio, thereby giving depth, or dimension to the sound.È

SVGA
Super Video Graphics Array. A term used to denote resolution higher than VGA (640 x 480). SVGA computer graphics cards have a resolution of 800 x 600 (480,000 pixels) but may be able to output resolutions of up to 1280 x 1024 and 16 million colours.È

S-VHS
Super-video home system. A high band video recording process for VHS that increases the picture quality and resolution capability.È

S-video
The composite video signal is separated into the luma (Y, black and white information) and the chroma (C, colour information).È

SXGA
Super Extended Graphics Array. A graphics standard with a resolution of 1280 x 1024 (1,310,720 pixels). This exceeds XGA (1024 x 768, at 786,432 pixels).È

Teleconferencing
A meeting between people at two or more locations who can communicate by audio and /or visual devices often via telephone and/or closed-circuit television..È

UHF
Ultra High Frequency. A television broadcast frequency range between 300 and 3000 MHz.È

UXGA
Ultra extended graphics array. A graphics standard resolution of 1600 x 1280 (2,048,000 pixels). This exceeds SXGA (1280 x 1024 = 1,310,720 pixels).È

VCR
Generally defined as video cassette recorder. In Europe, however, VCR is a trademark for a particular video format developed by Philips of The Netherlands.È

VGA
Video Graphics Array. Introduced by IBM in 1987, VGA is an analog signal with TTL level separate horizontal and vertical sync. It has a pixel by line resolution of 640 x 480.È

VHF
Very High Frequency. Television broadcast range between 30 and 300 MHz.È

VHS
Video Home System. The 1/2" videocassette format originated and developed by JVC and adopted by a number of different manufacturers.È

WWW
World Wide Web. An international network of subscriber sites where information in the form of text and/or graphics is made available to computer users with internet access.È

XGA
Extended Graphics Array Card. IBM's graphics standard that includes VGA and extended resolutions up to 1024 x 768 (interlaced 35 kHz) with 65k colours.È