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Name:
Andy
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Latest Activity:
3 weeks ago
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PC & Laptop Repairs
Remote Access Assistance
Data Recovery
Virus Removal
Home Networking
Hertfordshire / North London
Email: AndyComputers@hotmail.co.uk
"Have you tried turning it off and back on again?"
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PC & Laptop Repairs
Remote Access Assistance
Data Recovery
Virus Removal
Home Networking
Hertfordshire / North London
Email: AndyComputers@hotmail.co.uk
"Have you tried turning it off and back on again?"
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About Me:
from the home counties.
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TECH NEWS
Ofcom is considering using the airwaves freed up when FM radio goes digital to provide rural broadband.
So-called white spaces devices are currently being trialled for use in the spectrum gaps freed up by the digital TV switchover.
Ofcom believes they would work equally well in the FM spectrum.
There is no set date for the switchover from FM to digital radio although the government is keen for it to happen in 2015.
Some think that date is unrealistic due to the slow take-up of digital radio and the current lack of coverage.
White space technologies have been gathering momentum in recent months. They take advantage of spare spectrum bands that have not been licensed for any other use. This makes them attractive to communications firms because they get to use for free what would otherwise be extremely expensive.
That makes the technology particularly useful for providing rural broadband where the costs of laying cables or otherwise supplying bandwidth are much higher.
The technology works by identifying the unoccupied white spaces to transmit and receive wireless signals.
Compared with other forms of wireless technology, such as Bluetooth and wi-fi, white space devices are being designed to use a much wider range of frequencies, including the lower frequencies that have traditionally been reserved for TV and radio.
Low frequencies work better in buildings, something that has been a problem for higher frequency 3G technologies.
Other possible uses for the technology include offering a link between devices, so that more objects can be connected to the network.
Ofcom's chief executive Ed Richards said: "Spectrum is a resource that is in huge demand, fuelled by the recent explosion in smart phones and other wireless technologies.
However, there is only a limited amount of it to go around, which means we need to start thinking more creatively about how it is used. White space devices could offer the creative solution we are looking for."
BT is currently testing white space technology on the Scottish island of Bute and said early results were "promising".
Last month Microsoft, the BBC, BT and Nokia announced they would launch a white spaces consortium.
Cambridge start-up Neul is leading the way in making white-space equipment. It estimates that there is around 150MHz of unused spectrum in the UK, which is five times as much as Vodafone has for its 3G services.
The technology offers speeds of around 16 megabits per second but has the potential to be much faster.
To avoid interference, equipment needs to pass very stringent tests.
Source BBC Tech news
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Chocolate lovers may soon be able to print their own 3D creations thanks to work by UK scientists.
A 3D printer that uses chocolate has been developed by University of Exeter researchers - and it prints layers of chocolate instead of ink or plastic.
Although still a prototype, several retailers have already expressed interest in taking on the device.
3D printing using plastic and metal is already widely used in industry to speed up design work.
Lead scientist Dr Liang Hao told BBC News that chocolate printing, just like any other 3D printing technique, starts with a flat cross-section image - similar to that produced by ordinary printers turning out images.
"Then you do a 3D shape - layer by layer, printing chocolate instead of ink, like if you were layering 2D paper to form a 3D shape," he said.
Once a layer is completed, it solidifies, and the machine moves on to the next layer.
Shape and taste
There have been other attempts to develop so-called "food printers" - in 2010, researchers from Cornell University in the US used liquefied foods as inks in a specially designed machine.
Dr Richard Hague from Loughborough University told BBC News that the Exeter creation is a step towards manufacturing a device able to print flawless 3D objects that taste good.
Source BBC Tech news
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Almost one third of internet users in the European Union caught a PC virus despite the majority having security software installed, statistics show.
Viruses were most prevalent in Bulgaria and Hungary, the survey of 30 countries reveals.
The 2010 figures, released by the EU's statistics office to mark Internet Safety Day, show the safest countries were Austria and Ireland.
The figures also detail financial losses online.
They show that 3% of net users in the 27 EU states lost money due to phishing attacks or fraudulent payments.
Phishing involves using fake websites to lure people into revealing details such as bank accounts or login names.
Latvia recorded the highest rate of this kind of fraud with 8% of its internet users affected, followed by the United Kingdom (7%), Malta and Austria (both 5%).
BBC Tech news
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Country:
United Kingdom
Occupation:
Computer Repair Sole Trader
Companies:
Andy Computers - Repairs
Movies:
The Matrix - War games
Music:
8 bit 4 track Amiga music demos
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I took apart a Acer Aspire 5335 that was only 4 months old and the Results are shocking!
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How does each method spreads under heatsink? Watch it live!
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How to take apart (disassemble) the PLAYSTATION 3 SLIM ( PS3 ) for a CASE MOD.
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Parallels does it again with Parallels Desktop 6 for Mac. The new version adds more then 50 new features that continue to push it out in front of ...
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Channel Comments
A bit is a binary digit, the smallest increment of data on a computer. A bit can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively.
Because bits are so small, you rarely work with information one bit at a time. Bits are usually assembled into a group of eight to form a byte. A byte contains enough information to store a single ASCII character, like "h".
A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system.
Computer storage and memory is often measured in megabytes (MB) and gigabytes (GB). A medium-sized novel contains about 1MB of information. 1MB is 1,024 kilobytes, or 1,048,576 (1024x1024) bytes, not one million bytes.
The names and abbreviations for numbers of bytes are easily confused with the notations for bits.
The abbreviations for numbers of bits use a lower-case "b" instead of an upper-case "B". Since one byte is made up of eight bits, this difference can be significant.
For example, if a broadband Internet connection is advertised with a download speed of 3.0Mbps, its speed is 3.0 megabits per second, or 0.375 megabytes per second (which would be abbreviated as 0.375MBps).
Bits and bit rates (bits over time, as in bits per second [bps]) are most commonly used to describe connection speeds, food for thought while being blessed with 10 Mbps Fibre-Optics.
10 to the power of 1 = 10
10 to the power of 2 = 10*10 = 100
10 to the power of 3 = 10*10*10 = 1,000
10 to the power of 6 = 1,000,000
Computers count by base 2:
2 to the power 1 = 2
2 to the power 2 = 2*2 = 4
2 to the power 3 = 2*2*2 = 8
2 to the power 10 = 1,024 220 = 1,048,576
Unit Equivalent
1 kilobyte (KB) 1,024 bytes
1 megabyte (MB) 1,048,576 bytes
1 gigabyte (GB) 1,073,741,824 bytes
1 terabyte (TB) 1,099,511,627,776 bytes
1 petabyte (PB) 1,125,899,906,842,624 bytes
All aspects of home computing become more enjoyable when your computer is tuned to enjoy!