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Technology

Interesting information from a UN report done last year about the use of cellular phones around the world.

By the end of last year there were an estimated 4.1bn mobile subscriptions, up from 1bn in 2002. That represents six in 10 of the world’s population, although it is hard to make a precise calculation about how many people actually use mobile phones.

Africa is the continent with the fastest growth, where penetration has soared from just one in 50 people at the turn of the century to 28%.

Much of the take-up is thought to have been driven by money transfer services that allow people without bank accounts to send money speedily and safely by text messages, which the recipient – typically a family member – can cash in at the other end. Vodafone’s M-Pesa money transfer service was launched in Kenya in 2007 and now has 5 million users.

The ITU report points to the Gambia, where mobile subscriptions have rocketed amid stiff competition among mobile operators. Out of almost a million telephone subscribers, there are more than 800,000 mobile subscriptions but only about 50,000 fixed telephone lines in service.

Developing countries now account for about two-thirds of the mobile phones in use, compared with less than half of subscriptions in 2002.

[From Guardian.co.uk]

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Despite containing modern electronics and circuits, most pinball machines today still contain at least a half mile of wiring! Older ones could have one or two miles of wire inside!

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The 40th Anniversary of the Computer Mouse

On 9 December 1968 hi-tech visionary Douglas Engelbart first used one to demonstrate novel ways of working with computers.
The first mouse that Dr Engelbart used in the demo at the Fall Joint Computer Conference (FJCC) was made of wood and had one button.
Much of the technology shown off in the demo inspired the creation of [...]

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How the Telephone Keypad Came About

Here is an interesting article about how the telephone companies came about choosing the keypad configuration for dialing numbers.
Ever wonder who came up with the order of numbers on a telephone? Ever wonder why it isn’t the same as those on a calculator, or a keyboard, ascending from lowest to highest? After all, adding machines [...]

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What is RSS?

“RSS is a family of web feed formats, specified in XML and used for Web syndication. RSS is used by (among other things) news websites, weblogs and podcasting. The abbreviation is variously used to refer to the following standards:
Rich Site Summary (RSS 0.91)
RDF Site Summary (RSS 0.9 and 1.0)
Really Simple Syndication (RSS 2.0)
 
Web feeds provide [...]

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Wireless Research

“In the past half century, almost half of all alll research into wireless technology has been developed by amateurs.”
[http://www.qsl.net/n9zia]

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128 bit Standard Encryption

“If a computer was invented that could recover one DES encryption key in one second, it would take it approximately 149 trillion years to crack a 128bit standard encyrption key – which we all use on our computers.”
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