Get help, advice and information on all your Communications issues. http://advice-and.info/Communications/digital.htm Mon, 04 Aug 2008 13:55:14 GMT en Remember the first cell phone ever invented? Well if not, here are some details to refresh your memory In 1973 during a public demonstration, a 30-ounce device was used to make the first call from a portable cell phone. Ten years later, Motorola introduced the first marketable cell phone weighing in at 3,500 and 16 ounces (the average cell phone today is about 3 ounces.) The continually evolving cell phone, and its respective industry, is an insightful indicator of the technology revolution. As landlines become obsolete, industry leaders are compelled to streamline the phones technology, offering optimal ease and compatibility to the wide range of marketable consumers. Theyve even gone so far as to give phones a pseudo-brain power. A SIM card, or Subscriber Identity Module, is the digital brain of a cell phone. The extractable information card can be slid out of an old phone and into a shiny new model arguably the most appealing feature of a SIM card. Th is extraordinarily small memory chip holds ample amounts of information from personal identification information, phone numbers, text messages and other data. The newest, most popular version of the SIM card has a width of 25mm, height of 15mm and a thickness of 0.76mm. The hassle free abilities allowed by a SIM card are a strong selling point amongst its cell phone carriers. Upgrades are hassle free and switching carriers is also a cinch, simply flip the SIM card into the new phone provided of course that the phone is also SIM card compatible. International travelers can also take advantage of a SIM cards capabilities. Simply buy a local SIM card and avoid soaring costs of international roaming charges. The only down side is that SIM cards can only operate on a network called GSM or Global System for Mobile Communication. Their competitor, CDMA or Code Division Multiple Access, formulated by Qualcomm, is not SIM compatible. In fact they carry their ow http://advice-and.info/Communications/69876_Sim_Cards_-_Your_Cell_Phones_Digital_Brain.html Thu, 29 Nov 2007 22:13:34 GMT If you havent personally witnessed just what high definition programming is like, then maybe its time you took a look for yourself. High definition describes the audio feature or sound, as well as the picture on the TV set that you will be watching. Digitized surround sound, with Dolby noise reduction feature, is what you will be hearing when you turn on your high definition programming from DirecTV. http://advice-and.info/Communications/54118_Digital_Surround_Sound_With_Dolby_From_Directv.html Sun, 01 Jul 2007 07:18:15 GMT Television and video are terms that are sometimes used interchangeably, but differ in their technical meaning. Video is the visual portion of television, whereas television is the combination of video and audio modulated onto a carrier frequency (i.e., a television channel), so that the signal can be delivered to the receiver (TV or computerPVR with a TV tuner). The DVR resolutions differ from the way in which a video is recorded. http://advice-and.info/Communications/52266_Easy_Dvr_Recording_With_Analog_Digital_Or_Satellite_Television.html Sun, 10 Jun 2007 01:09:44 GMT It's the wave of the broadcasting future: Digital television (DTV) brings viewers the clearest picture and the best audio available, with better resolution and more possibilities than standard analog television. If you're still watching analog television, it's time for change. Take one look at DTV, and you'll never go back to standard television. For TV lovers who still need some prove that DTV is the best television out there, here are a few reasons to give DTV a try: The difference between regular television and DTV is like night and day thanks to the large number of pixels utilized in DTV. The higher the number of pixels, the better the picture. Digital TV's reliance upon binary code - the very code that brings clarity and smoothness to computer monitors and CDs - also makes for a the best picture and sound. Besides, DTV features a higher aspect ratio than analog TV. In fact, the aspect ratio of DTV is twice that of analog television, resulting in a wider screen and better TV picture. http://advice-and.info/Communications/42013_What_Is_So_Great_About_Digital_Television.html Tue, 01 May 2007 22:43:17 GMT Digital radio has struggled to make it's place in the market. Most of the United States does not yet own a digital or satillite radio and the reasons are clear. The digital radio recievers are not only expensive at the present time, but you must also subscribe to one of the services available for a monthly fee. This monthly fee is more of a deterant than the high prices on the satllite radio receivers. Many stores that sell digital radio receivers are putting up many promotions in the form of discounts and rebates to try to entice the customer into buying. I personlly feel that digital radio receivers will follow the same path that most electronics follow. In the beginning the price point will be high and as technology improves and mass manufaturing processes are improved, then the costs will come down significantly. We have seen this trend in the past on items such as televisions, VCRs, telephones, stero equipment to name but a few. http://advice-and.info/Communications/43391_The_Wave_Of_The_Future_Digital_Radio_Is_Here_To_Stay.html Mon, 30 Apr 2007 08:27:33 GMT