Showing posts with label mobile. Show all posts
Showing posts with label mobile. Show all posts

Wednesday, July 18, 2012

What Is GSM?

GSM, or Global System for Mobile Communications, is a cellular phone protocol that is standard in most parts of the world. Technology experts created the protocol in the 1980s and ’90s to standardize cellular phone service between countries in Europe. GSM phones use subscriber identity module (SIM) cards, which is essential to their function and enable the user to change phones easily. It is a chief competitor to the Code Division Multiple Access (CDMA) protocol.TechnologyTechnically, the term GSM refers to second-generation (2G) voice networks that operate based on a combination of time division multiple access (TDMA) and frequency division multiple access (FDMA). TDMA takes the frequency channel the phone uses and divides it into individual bits of time that are assigned to each user. FDMA...

Thursday, December 16, 2010

"ICE" campaign : very important to read

Isn't it true that we all carry our mobile phones with hundreds of names/numbers stored in its memory but yet nobody, other than ourselves, know which of these numbers belong to our near and dear ones?  Let us for a moment create a scenario wherein (God forbid) we are involved in an accident or had a heart attack and the people attending to us get hold of our mobile phone but don't know which number to call to inform our family members.  Yes, there are hundreds of numbers stored but which one is the contact person  in case of an emergency? For this reason, we must have one or more telephone numbers stored under the name ICE (In Case of Emergency) in our mobile phones.  Read below for more details.  Fwd: " ICE" Campaign  Recently, the concept of...

Blue Tooth Technology

What Is Blue Tooth?Bluetooth is an industrial specification for wireless personal area networks (PANs). Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptops, PCs, printers, digital cameras, and video game consoles over a secure, globally unlicensed short-range radio frequency. The Bluetooth specifications are developed and licensed by the Bluetooth Special Interest Group.Spectrum Bluetooth technology operates in the unlicensed industrial, scientific and medical (ISM) band at 2.4 to 2.485 GHz, using a spread spectrum, frequency hopping, full-duplex signal at a nominal rate of 1600 hops/sec....

Donot Use mobile While Driving

If you drive using a mobile phone you are four times more likely to crash, than someone not using a phone.                            Using a mobile phone while driving reduces your ability to react and distracts your concentration. This applies equally to conversations on hand-held and hands-free phones. Some studies have shown that using a mobile phone while driving can affect your ability as much as being over the drink-drive limit.Having a mobile phone conversation increases drivers' mental workload and stress...