A pneumatic actuator is a device that is capable of converting energy from a pressurized gas into motion. There are several different types of pneumatic actuators and each of them are designed in a slightly different way. Pneumatic actuators can be used to produce both rotary and linear motion and are usually powered by an …
MicroSD cards are the newest and smallest flash memory secure digital cards available, much smaller than both standard SD memory cards and even Mini SD memory cards. MicroSD cards were created by SanDisk Corporation and were introduced into use in 2006. These cards were created to be used with mobile phones; however other applications such …
A computer case, also termed as computer chassis or cabinet, is a small enclosure or box into which all the major computer components and peripherals are fitted. Computer cases can be broadly classified into 2 different categories. Each of them is briefly discussed below. Desktop Case: Considered the most classical version of computer cases, these …
BNC BNC, which stands for Bayonet Neill-Concelman, is a type of RF connector used for terminating coaxial cable. BNC connectors are used in a variety of consumer electronics, including radios, video devices and certain Ethernet networks. VGA VGA, which stands for Video Graphics Array, is a piece of display hardware. The VGA hardware is a …
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 …