What is DVR? DVR is a digital video recorder and is also known as a
personal video recorder. Unlike a VCR, the DVR records directly to a
disk or hard drive instead of to a video tape of sorts. DVR can be
found on most computer software as well as being in the form of
stand-along box units for television and film.
Many television
set producers are now including DVR built in to the television. This
enables the viewer to capture a program or movie into the memory of the
television for later viewing. The DVR also is capable of recording much
longer than a VCR and is also easily erased for repeated use.
What
is DVR used for? It was first used by CBS in 1965 in an effort to
freeze their sports footage. This was nearly impossible with their
current operating system as the frozen images were not clear. In 1985,
the DVR was first introduced for in-home use, though its deubt was not
widespread. Thanks to the introduction of the DVR giant TiVo, many
similar products are now on the market and are widespread. The DVR
tends to allow for crisper picture quality and faster search through
recorded material than its VHS counterparts.
What is DVR for the
average consumer? Satellite companies are now utilizing DVR by adding
it directly into customers’ in-home receiver boxes, enabling them to
record and view television programming. Dual tuners have now been
introduced in the DVR allowing viewers to watch one program while
simultaneously being able to tape up to two other shows. Such recording
takes place either by internally storing the program on a hard disk or
by burning the program onto a DVD-RW, or a rewritable DVD.
Consumers
also use them as a cost effective way for security. You can get DVR
cards with up to 8 camera connections on them. This allows you to mount
security cameras all around your property and record directly onto your
PC. You can capture several days worth of video footage from several
cameras into your DVR system on your computer.
What is DVR still
used for commercially? CCTV companies also use DVR in their
surveillance systems since DVR is able to record for extended lengths
of time. DVR also provides a clearer picture, allowing for better
quality results. It is used by banks, car dealerships, retail stores,a
nd especially at mini-markets which are a prime target for crime. DVR
recorder systems are helping combat crime by providing excellent images
of people committing crimes. This makes it easier for law enforcement
to capture the perpertrators and makes it easy to convict these peopl
when the digital video recording is played back in court.
What is
DVR in computer technology? DVR also exists on computers. Macintosh
computers mainly utilize EyeTV software while Windows uses its Windows
Media Center for the downloading and producing of its images recorded
through DVR, though other operating systems are in the works as well.
Dean Novosat writes about technology and computer issues. His recent report is all about DVR for home and commerical use http://www.thedvrreport.com