D - Jargon Buster

Jargon Buster & dedicated Buying Guide will aid you in understanding the world of technology and consumer electronics. Select from the alphabetical order below.

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DAB digital radio (Audio)
These radios receive digital radio signals. They can tune into more radio stations with digital quality sound and no interference.

Databack (Photography)
The databack facility records and prints the time and date of the photograph, so you'll never forget when it was taken.

Data card (Mobile Phones)
Digital mobile phones can be connected to a laptop to send and receive data and fax messages over a mobile phone network. Most require a data card to connect them to a laptop.

DDR RAM (Computing)
Double Data Rate Random Access Memory. This is the laptop’s memory. The higher the number, the more tasks it can do at once.

Digital amplification (Audio)
More power from a smaller unit combined with hiss-free and better sound quality.

Digital camera card readers (Printers)
By inserting a camera’s memory card into the card reader in the printer, you can select and print photos without needing to use your computer.

Digital camera facility (Camcorders)
Some camcorders have a memory card slot that let’s you capture still photos onto the card.

Digital comb filter (TVs)
This separates combined colour and black and white picture information to provide a sharp picture.

Digital record time (Home phones)
This shows the time in minutes available for callers to leave messages.

Digital Theatre System (Vision)
DTS is an alternative system of encoding six-channel digital surround-sound, used in some cinemas and on some DVD discs. Jurassic Park was the first film to use this technology.

Digital TV (TVs)
Digital TVs have an integrated digital tuner to receive digital TV channels, known as Freeview, through a TV aerial. This delivers digital quality picture and sound, more channels and interactive services.

Digital TV recorders (TVs)
These record digital TV. Normally, you can watch a digital channel while recording a non-digital channel or vice versa.

Digital zoom (Photography)
Digital zoom allows you to enlarge the image by increasing the size of the pixels. The image may become fuzzier as you enlarge.

DLNA (Television, Game Consoles & Computing)
Digital Living Network Alliance or DLNA certified devices can seemlessly connect to each other on a single digital network without any further configurations. DLNA devices connect, discover and communicate between each other over a home network.

Docking station (Audio)
A stand that enables you to recharge iPods and MP3 players. Often incorporated into portable speakers.

Dolby digital 5.1 (TVs)
A sound technology that delivers five separate channels of sound (left, right, centre, rear left, rear right), plus a sixth channel devoted to bass. Dolby Digital 5.1 is now available from DVDs, Sky Digital's Sky+ boxes, PlayStation 2 and the Xbox.

Dolby pro logic (TVs)
This is a five-speaker system which most programmes broadcast in..

DPI (Printers)
Dots per inch. DPI is a measurement of printer resolution that defines how many dots of ink are placed on the page when the image is printed. The higher a printer's DPI, the smoother and sharper your printed image will appear.

DRM (Audio)
Digital Rights Management Software that encrypts a file to control sharing and use of digital music

DSLR (Photography)
Digital SLR (single lens reflex) cameras have advanced features, manual controls and interchangeable lenses for greater creativity.

Dual core processor (Computing)
This processor acts like two processors in one, enabling simultaneous running of demanding applications.

Dual layer DVD RW (Vision)
Dual layer recording records almost twice as much data on a DVD than normal DVD recording.

Dual phones (Internet phones)
These are cordless phones that can be used to make normal calls via a landline and also make calls over VOIP using a broadband connection.

Dual recording mode (Camcorders)
A feature to take a still image while shooting videos.

DVB (TVs)
Digital Video Broadcasting is the transmission standard for digital television.

DVD camcorder (Photography)
These camcorders record straight onto a disc slightly smaller than a standard DVD. You can play it back on your DVD player immediately.

DVD recorders (TVs)
They record programmes from TV onto a DVD in digital quality.

DVD recorders with hard drive (TVs)
Record and store all your favourite TV programmes on a built-in hard drive. You can transfer recordings onto a DVD to keep or share it.

DVD rewriter drive (Computing)
Read, play and create both DVDs and CDs using a DVD rewriter.

DV input (TVs and Photography)
This type of a connection is typically used to connect a digital device, such as a digital camcorder, to your DVD recorder. You can then record your home movies onto DVD.

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