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Wednesday, September 17, 2008

What is CDMA,GSM,GPRS,SIM,EDGE,PTT,3G??


* Global System for Mobile Communications

This is the most popular standard for mobile phones in the world. GSM service is used by over 6 billion people across more than 200 countries. The GSM standard makes international roaming pretty common between mobile phone service providers, enabling all their subscribers to use their cell phones in different parts of the world.

* Code Division Multiple Access (CDMA)

CDMA is a form of multiplexing and a method of multiple access that does not divide up the channel by time, or frequency, but instead encodes data with a special code associated with each channel and uses the constructive interference properties of the special codes which can perform the multiplexing. CDMA also refers to digital cellular telephony systems that use this multiple access scheme. CDMA phones usually do not need a SIM card.

* General Packet Radio Service (GPRS)

GPRS is a mobile data service available to subscribers of GSM mobile phones. GPRS data transfer is mostly charged per kilobyte (KB) of transferred data to and from the cell phone. GPRS is utilized for services such as Internet and MMS. In the future, it is still anticipated that low cost voice over IP will be made available in mobile phones.

* Subscriber Identity Module (SIM)


SIM is a removable smart card that is used in the cell phone and was available in two standard sizes. Initially it was the size of a credit card, while its more popular and widely used mini version has a width of 25 mm.This has been adopted by most cell phone manufacturers. The SIM card securely stores a key code which identifies a mobile phone to its service provider.

* Enhanced Data rates for GSM Evolution (EDGE)


EDGE is an enhancement to the GSM networks which makes use of theTDMA (Time Division Multiple Access) frame structure, logic channel and 200 KHz carrier bandwidth. EDGE is not only capable of providing three times the data capacity of GPRS but also has improved data transmission reliability.

* Push-to-Talk (PTT)

PTT also known as Press-to-Transmit, is a method of conversing on half-duplex communication lines by making use of a momentary button to switch from voice reception mode to transmission mode. Some mobile operators offer the PPT service on mobile phones.

* 3G- 3rd Generation Technology

3G (or 3-G) is short for third-generation technology. It is used in the context of mobile phone standards. The services associated with 3G provide the ability to transfer simultaneously both voice data (a telephone call) and non-voice data (such as downloading information, exchanging email, and instant messaging).

Wednesday, September 10, 2008

Magic

Windows users, do the following:
1.) Open a new notepad file.
2.) Type "Bush hid the facts" (without the quotes).
3.) Save it as whatever you want.
4.) Close it, and re-open it

What happened??

Saturday, August 30, 2008

How Companies Got their Name

Apple Computers

It was the favourite fruit of founder Steve Jobs. He was three months late in filing a name for the business, and he threatened to call his company Apple Computers if the other colleagues didn’t suggest a better name by 5 O’clock.

CISCO

It is not an acronym as popularly believed. It is short for San Francisco.

Compaq

This name was formed by using COMp, for computer, and PAQ to denote a small integral object.

Corel

The name was derived from the founder’s name Dr.Michael Cowpland. It stands for COwpland REsearch Laboratory.

Google


The name started as a joke boasting about the amount of information the search-engine would be able to search. It was originally named ‘Googol’, a word for the number represented by 1 followed by 100 zeros.After founders - Stanford graduate students Sergey Brin and Larry Page presented their project to an angel investor, they received a cheque made out to ‘Google’

Hotmail


Founder Jack Smith got the idea of accessing e-mail via the web from a computer anywhere in the world.When Sabeer Bhatia came up with the business plan for the mail service, he tried all kinds of names ending in ‘mail’ and finally settled for hotmail as it included the letters “html” - the programming language used to write web pages. It was initially referred to as HoTMaiL with selective uppercasing.


Intel


Bob Noyce and Gordon Moore wanted to name their new company ‘Moore Noyce’ but that was already trademarked by a hotel chain so they had to settle for an acronym of INTegrated ELectronics.



Microsoft


Coined by Bill Gates to represent the company that was devoted to MICROcomputer SOFTware. Originally christened Micro-Soft, the ‘-’ was removed later on.

Motorola

Founder Paul Galvin came up with this name when his company started manufacturing radios for cars. The popular radio company at the time was called Victrola.

ORACLE


Larry Ellison and Bob Oats were working on a consulting project for the CIA (Central Intelligence Agency). The code name for the project was called Oracle (the CIA saw this as the system to give answers to all questions or something such). The project was designed to help use the newly written SQL code by IBM. The project eventually was terminated but Larry and Bob decided to finish what they started and bring it to the world. They kept the name Oracle and created the RDBMS engine. Later they kept the same name for the company.

Sony

It originated from the Latin word ’sonus’ meaning sound, and ’sonny’ a slang used by Americans to refer to a bright youngster.

SUN


Founded by 4 Stanford University buddies, SUN is the acronym for Stanford University Network. Andreas Bechtolsheim built a microcomputer; Vinod Khosla recruited him and Scott McNealy to manufacture computers based on it, and Bill Joy to develop a UNIX-based OS for the computer.

Yahoo!


The word was invented by Jonathan Swift and used in his book ‘Gulliver’s Travels’. It represents a person who is repulsive in appearance and action and is barely human. Yahoo! Founders Jerry Yang and David Filo selected the name because they considered themselves yahoos

The Most Common Default Time in the World


Have you noticed that almost all display images of analog watches and clocks have their time set to ten minutes past ten (10:10)? Why is it so common all over the world? We see it on newspapers, magazines, billboards and even on websites? Any ideas who started this? Whenever we see images of clocks,we see that 10:10 is used by almost all clock and watch images.

Timex sets all their watches to 10:09:36, Philip Stein sets their time to either 10:10:40 or 03:40:10 (similar position to 10:10 upside down), Seiko commonly uses 10:09:42 on their watches and Timberland sets it at either 10:10:37 or 10:09:38.

So we see, 10:10 (or 10:09 on some) is the most common set time in the World. Whoever started it is still unknown.

Friday, August 29, 2008

Dhoni Tops ODI Rankings



Indian skipper Mahendra Singh Dhoni has again gained top place in the latest ICC ODI batsmen ranking.

He defeated South African player, Greame Smith in this race. He is ranked first following his consistent performance in the various matches. He has now 803 rating points. African player, Greame Smith lagged behind him by 27 points.

Greame Smith achieved second place in ICC ODI batsmen ranking.

Australian player, Ricky Ponting got third place in the ICC ranking followed by Michael Hussey and England skipper Kevin Pietersen. Master blaster Sachin Tendulkar gained 9th place while Yuvraj Singh gained 18th place.

Indian bowler, Zaheer Khan got14th slot in the top 20 ODI bowlers.

Australia continued to lead the international batsmen ranking followed by South Africa and New Zealand.