June 6, 2009

USB Device not Recognized Error.

Why this error comes? This problem persist in two ways. All the usb ports will give this error irrespective of what you connect, in this case why it happens is because of a inner conflict in your hardware.
But sometimes all the ports will work properly, except for a single device. If this is the case, then don't worry because obviously the error is with the particular device, so now its time to check for a replacement.

June 3, 2009

My new board is awesome!

A limited edition, and features hand-picked components for extreme overclockability. Incidentally, the PCI-E slots support the new PCI-E 2.0 standard too. ASUS also adds a heat-pipe solution that integrates a water block on the Northbridge chipset for proper cooling.

The entire motherboard has a very intricate heat-pipe system that remains cool no matter about the working hours. It also embeds an inbuilt sensor that will warn you if temperature exceed threshold. ASUS also have incorporated a special 2-phasememory voltage termination for voltage regulation even at overclocking. The BIOS is full of overclocking options and tweaks and more than sufficient number of SATA, and USB ports. Looking at the price Rs 16,800 seems high, but it’s plenty of board for that much. ASUS includes a rich bundle too. Highly recommended for those looking at a high-end, stable platform in general .

June 2, 2009

Biometrics, Redefined.

It can be defined as the technique of studying the physical characteristics of humans to establish identity.

The increased need for security, and it is also convenient to simply place finger on to a scanner instead of remembering a complex password.

The concept is simple. Pre-stored database is used to compare your finger impression with a record already in database. When a match is found, access is granted. A fingerprint is like waves with ridges and valleys, they are scanned to verify the authenticity.

An optical (CCD) scanner similar to the ones used in digital cameras is used for scanning. It is an array of light sensitive diodes .When they come in contact with light, they generate an electrical signal.An ADC system that converts electrical signal into digital. The scanner will also have a light source to illuminate the finger.