MP3 compressed sound files are finally becoming popular with online music stores, now that DRM is on the way out. Although MP3 compression is not quite as efficient as AAC and WMA it is good enough. The files are much smaller…
Updating the Philips DTR1500 Freeview box
The Philips DRT1500 set-top box is a great Freeview receiver but suffers one problem. It is only possible to add new channels to the channel lineup, not change those already tuned in. As channel names and numbers change the channel…
Digital cameras – why sensor size matters
A wide range of sensor sizes are used in cameras today. The size of the sensors is not related to their resolution (measured in megapixels). The smallest, 1/3.6″, has a tiny light-sensitive surface of only 4mm x 3mm. That is…
Photo fading – CDs, DVDs and prints
You might be surprised to know that you can’t even be sure the CDs you burned of this year’s digital photographs will last five years, let alone the inkjet prints you made.
Hello world!
Welcome to Infomania The website was previously running on a CMS (content management system) which proved to time consuming to manage. Hopefully the new platform will allow us to concentrate on postings, hints and tips on a more frequent basis.…
GSM phone technology
GSM cellular phones use a combination of Time and Frequency Division Multiple Access. TDMA simply means that several stations can share a frequency by taking turns. The difficult bit is making them think they’ve all got the channel to themselves.…