Acer is a leading computer hardware manufacturer. They make desktop computers, notebooks, monitors, projectors, servers, and storage devices. Every Acer computer and laptop comes with a pre-installed BIOS software. This BIOS software is generally protected and secured by some password. Because it is a common tendency for any person to forget passwords, this article specifically …
QVGA (Quarter Video Graphics Array or Quarter VGA) is a type of resolution whose dimensions are 320×240 pixels. The QVGA display is normally found in devices such as mobile phones and PDAs. The display is also common on other hand-held devices such as game consoles. Resolution Most of the time, the display is in the …
If you are like the millions of people thinking of upgrading your old TV set for a brand new flat screen TV, you probably have one question- Plasma or LCD? Plasma and LCD are the two major types of flat TV sets for sale. While there is no sure winner since they both have their …
The “Power Calibration Error” typically appears when someone attempts to burn a CD or DVD and the burner fails to write the CD or DVD. The error might also appear as a “Medium Speed Error.” Multiple factors can cause the error, but it is most likely to occur because the CD/DVD burner is not able …
Fingerprint scanners are biometric security systems designed to use the distinct features of an individual's fingerprints to provide security. Fingerprint scanners are now being used in police stations, security-intensive industries and, most recently, on computer shops as a peripheral device for computers. Biology of a Fingerprint Every person has marks on his fingers. These marks …
Blu-ray is an optical storage format developed by Sony and Phillips. It was created to store large amounts of high definition video and sound. Blu-ray’s name came from the type of laser it uses to read and write data. The laser is a hue of blue-violet. A blue-violet laser has a shorter wavelength than the …
The mouse is an extremely popular device. While the majority of mice are connected directly to the computers peripheral input via a cord and the computer’s main power powers it, wireless mice are becoming extremely popular as they give computer users cordless accessibility to their mice and their computer. Wireless Mouse Technology Wireless mice usually …
A pantograph is a mechanical device that is made of links. It bends in order to allow a user to draw an image while simultaneously drawing two or more copies of it. Pantographs can also make smaller or larger copies of an original drawing. They have been used for over four hundred years and have …
HVD (Holographic Versatile Disc) is the next generation in optical disk technology. HVD is still in a research phase that would phenomenally increase the disk storage capacities over the currently existing HD DVD and Blu-ray optical disk systems. According to published statistics, when produced in full scale, HVDs will have a storage capacity of 3.9 …
eSATAp is a high speed connectivity option for external storage devices like portable hard disks (HDD), Solid State Drives (SSD), and Networked Attached Storage (NAS). It is also referred to as eSATA/USB combo port and Power Over eSATA. This connection is 3 times as fast as USB 2.0, and its speed is comparable to USB 3.0 …