A hydrophone is a type of microphone that is specifically designed to be used under water. Hydrophones depend on piezoelectric transducers to detect sound waves and other pressure waves coming from underwater vehicles, animals, and natural structures. Hydrophones were widely used in World War I, and II to detect U-boats (German submarines) and are still used today for underwater seismology, aquatic research, and recording deep sea sounds. While hydrophones can be used underground and in the air, they are specifically tuned to an acoustic impedance that is ideal for water. Read More

The 3D Accelerator is a type of graphics board that can be installed into a computer. A person who does so would be installing this board to speed up the time it takes for their machine to load and create images on the monitor of their computer. Because it incorporates its own board to function, 3D Accelerators are often known as individual computers themselves. But the most important thing to remember is that the Accelerator's sole purpose is to better create three-dimensional images on a person's computer screen. How a Read More

A computer processor is commonly referred to as the CPU, or central processing unit of a computer. The processor is the primary component of a computer designed to move and process data. Computer processors are commonly referred to by the speed that the CPU can process computer instructions per second measured in hertz and are one of the primary selling points of a computer. How Does the Processor Work? The computer processor acts as the primary coordinating component of the computer. The CPU will access programs, data, or other computer Read More

A DASD, or Direct Access Storage Disk, is a type of storage device that is connected directly to a user’s computer rather than being connected to the network. Because many types of storage device connect directly to a user’s computer, the term “DASD” may apply to a variety of different devices; however, a DASD is typically a storage device that contains a significant amount of memory and a relatively low access time. For example, desktop servers and external hard drives are good examples of DASDs, although flash drives and SD Read More

Broken hard disks can be both a nuisance and a major loss to business and personal affairs whenever files are lost or inaccessible. Fortunately, there are several things users can do to repair a broken hard disk before throwing it out in order to restore lost or inaccessible files.   Let the Hard Disk Cool Down The first thing users should do is allow their hard disk to cool down by shutting the computer off and unplugging it from the wall. The user can cool his/her hard disk down faster Read More

Multifunction printers have copy, fax, scan and printing capabilities all built into one piece of hardware. They are also called All-In-One printers. Multifunction printers are not much bigger than regular desktop printers. They can potentially replace up to four other machines: printer, scanner, photocopier, and fax. Multifunction printers are also kept as backup in case other machines fail. Multifunction printers have many advantages, but they also have some drawbacks. The ink cartridges are expensive, and the resolution of the printer and scanner is relatively poor. This is especially true for Read More

A pressure transmitter or pressure sensor is a device that measures pressure in a liquid, fluid, or gas. Pressure transmitters are commonly used to measure pressure inside of industrial machinery in order to alert the user before a catastrophe occurs. They have many different uses, most of which are industrial or automotive in nature. A pressure transmitter is easily recognized as it is a round gauge with various colors that represent different pressure levels. While pressure transmitters are similar to other gauges, they are essential to many of the applications Read More

How to repair an MPEG should be analyzed from the point of what is an MPEG. Keep in mind that there is no way in which we can successfully talk of repairing an MPEG without first giving a clue of what the MPEG is all about. The word MPEG is a synonym for Motion Picture Experts Group. This is an association created in 1988 to build up principles governing the production and usage of audio and visual configurations. How do you repair an MPEG? The problem of repairing an MPEG Read More

SIMD (Single Instruction Multiple Data) is a computer science method of combining multiple operations into a single computer instruction. The total number of operations combined is normally a factor of the power of two. The employment of SIMD results in significant savings in speed for algorithms designed to work in parallel. The technology is used on IA-32 and PowerPC architectures, and is referred to as AltiVec on the PowerPC and MMX (MultiMedia eXtensions) on IA-32 machines. SIMD results in significant gains when used for image processing, 3G graphics, scientific calculations, Read More

TOSLINK or Toshiba – LINK is a connection standard for digital audio streams. It is a standard which uses fiber optic cables. The important feature of fiber optic cables is that they convert audio signals into light impulses as opposed to electric signals. TOSLINK cables usually transmit their signals as the red LED lights. The TOSLINK standard was first developed by Toshiba to provide connections in its CS players. It soon caught on and became the most popular connection format for audio signals. It is mainly used to connect CD Read More