There are two different types of technology used to process sounds in a hearing aid, digital and analogue. Analogue aids use more traditional technology and many amplify all sounds by the same amount, which can make some sounds too loud. Digital technology can make the aid more flexible with more features than analogue aids. Typically digital aids amplify sounds in a more sophisticated way so all sounds remain comfortable.

Analogue telephone lines transfer sound as electromagnetic waves, whereas digital lines sample sound waves and translate them into bits (zeros and ones) to approximate the original wave shape. Digital data can be processed and stored more efficiently, giving you direct dial facilities, call diversion or transfer to external destinations and direct transfer of customer database details to your PC.

Analogue is the way that we have received television signals since television began. The digital signal can carry much more information than analogue resulting in DVD picture quality plus the sound being of CD quality. It also allows broadcasters to offer a range of new and different services.

Will you be able to compare past analog mammograms to digital mammograms? Your analog mammogram produced only an analog hard copy film that was read by a Radiologist. With a Digital mammogram, your image can be read and stored electronically in digital format, and may also converted from a digital image to film for reading and storage. In either case, the images can be compared from exam to exam and from digital to analog.

A digital mammogram takes less time to perform and typically involves a lower radiation dose to the patient. It also give us the ability to optimize the image, very similar to the way you optimize a digital photograph. Images are stored electronically so the is less chance of images being lost. In addition, images can be interpreted remotely, so second opinion interpretations may become easier.

Analog mammography uses x-ray to record images on film using an x-ray cassette. Films are then "developed" and produced and put on a light box and read by the Radiologist. With Digital mammography the x-rays produce a digital image on a screen while the patient is still in position. The technologist has the ability to review these in "real time" to determine image quality.

Recent studies indicate a higher cancer detection rate of digital mammography in certain patients, including those with dense breasts, those under 50 years old, and those who are pre- or peri-menopausal.

Digital mammography is similar to standard mammography in that x-rays are used to produce detailed images of the breast. The difference is that Digital Mammography is equipped with a digital receptor and generates computerized images immediately instead of a film cassette that needs to be developed into a film. A similar comparison is a standard camera to a digital camera. We are the first and only site in Connecticut to offer Digital Mammography with Computer Aided Detection(CAD).

One of the most recent advances in x-ray mammography is digital mammography. Digital (computerized) mammography is similar to standard mammography in that x-rays are used to produce detailed images of the breast. Digital mammography uses essentially the same mammography system as conventional mammography, but the system is equipped with a digital receptor and a computer instead of a film cassette.

Digital mammography captures the x-ray images on a digital detection rather than on x-ray film, as with conventional mammography. In January 2000, the FDA approved a digital mammography system that may offer potential advantages over the use of standard x-ray film. Studies comparing digital and conventional mammography are ongoing.

The call quality of digital technology is typically better than analog, and you'll experience less static and fewer dropped (interrupted) calls. With analog, you may experience more fast-busy signals in urban areas, indicating that the network is too busy to handle your call. Digital networks have larger capacity and you'll generally experience fewer fast-busy signals. Analog calls can be overheard on radio scanners, which is not the case with digital service.

You can check whether your LNB is digital or not by looking at the frequency range, which is usually written on the LNB. When your LNB is digital this frequency range goes up to 12.75 GHz. If it is analogue this frequency range only goes up to 11.75 GHz.

The 3.5mm jack by the power cord is a combined digital and analogue connector. If you insert a standard 3.5mm jack you will get the analogue audio output. With a special cable, (available from most hi-fi stockists), you can access the optical digital output.

A growing number of cordless phones use digital, rather than analog radio transmission. This provides higher security, less interference, and may provide longer range.

Mammography (conventional and digital) uses x-rays to produce an image. Ultrasound uses sound waves and is best used to determine composition. For example, ultrasound may be used to confirm the presence of a cyst, which is a fluid filled sack.

A3. ISDN Stands for Integrated Services Digital Network, which just means that it is a digital connection between you and the local exchange. The services refer to such things as Caller ID Display DDI numbers etc. Although analogue lines at home can display the Caller's number this is not common with business telephone systems. ISDN2e lines cost ?93 per quarter to rent but they have 2 channels (2 calls at the same time). Analogue lines only allow 1 call at a time and cost ?41.

It will be able to display digital pictures by connecting it to a digital decoder. Affordable set-top-boxes designed to receive free-to-air services are becoming widely available.

Yes. The best way to do this is to keep the two systems totally separate, however you will need planning permission for two dishes (in theory). If your system is motorised you might be able to use a twin-output Universal LNB to feed both receivers. However, you should always "park" your dish at 28.2E when not in use, otherwise you could miss software upgrades and other information (messages) broadcast by Sky.

Yes. In order to do this you will require either a dedicated video capture card, or a graphics card that has a TV in port. Bear in mind, the quality of analogue video captures will not be as high as digital video footage.