Sunday, 30 September 2012

Biometrics

                                Biometrics

Biometrics is the science and technology of measuring and analyzing biological data. In information technology, biometrics refers to technologies that measure and analyze human body characteristics, such as DNA, fingerprints, eye retinas and irises, voice patterns, facial patterns and hand measurements, for authentication purposes.

Authentication by biometric verification is becoming increasingly common in corporate and public security systems, consumer electronics and point of sale (POS) applications. In addition to security, the driving force behind biometric verification has been convenience.

Biometric devices, such as finger scanners, consist of:

A reader or scanning device.
Software that converts the scanned information into digital form and compares match points .
A database that stores the biometric data for comparison.
 

Sunday, 23 September 2012

Bluetooth VS. WiFi



What is the difference between Bluetooth & Wi-Fi???

Both are wireless, but their typical uses are totally different.

Bluetooth:)
Bluetooth typically operates on a weaker signal than wi-fi making it useful for close proximity connections such as wireless headsets or sending a picture between your phone and your computer.

Wi-Fi :)
Wi-fi on the other hand operates at a stronger signal and the data transfer rate is higher making it more suitable for wider range use such as local/home networks and internet sharing.