Nickel-Metal Hydride batteries are rechargable batteries which are commonly used in mobile telephones and digital cameras. Nickel-Metal Hydride is abbreviated as NiMH. Nickel-Metal Hydride Battery Pros and Cons Pros: 30-40% more charge capacity than Nickel Cadmium batteries Fewer memory-effect problems than Nickel Cadmium betteries Less toxic than Nickel Cadmium batteries Cons: Fewer recharges than Nickel Cadmium batteries Higher self-discharge rate than Nickel Cadmium Nickel-Metal Hydride Battery Alternatives Alternatives to Nickel-Metal Hydride batteries include: Nickel Cadmium Lithium Ion Lithium Polymer

DDR2 SDRAM, an abbreviation for double data rate two synchronous dynamic random access memory, is a type of a random access memory (RAM) commonly used in personal computers and various digital electronics today. This offspring from the SDRAM (synchronous dynamic random access memory), a part of DRAM (dynamic random access memory), is like an evolution from the DDR SDRAM; it can operate the external data bus twice as fast as its predecessor. This was possible by abandoning the original clock rate of the DDR, and operating the memory cells at Read More

If you’re still using a floppy disk drive, here are ways you can repair it if you have problems with it. New Computer For new computers with drives that won’t work try the following: Check the ‘troubleshooting’ list of common problems and see if there is a solution there. Make sure there is power going to the drive and inspect its power connection. You may need to buy a new connector. Check that the cable connecting the floppy drive is properly connected and is not crimped. Newly Installed Drive Be Read More

Mirroring is the automated process of writing data to two drives simultaneously. Mirroring is used to provide redundancy, backup, multiple concurrent accesses and uninterrupted accessibility. If one drive fails, the redundant drive will continue to store the data and provide access to it. The failed drive can then be replaced and the drive set can be re-mirrored. Disk data mirroring is also done for disaster recovery. Entire data is mirrored at remote sites which can then be used for recovery in case of disasters or breakdowns. Data mirroring can be Read More

A vocoder is a device for analyzing and synthesizing human voice. The term itself comes from the words 'voice' and 'encoder'. It has many uses but its main function is in secure voice transmission. The vocoder is useful for voice encryption which ensures that only another person with the voice decoder can listen to what has been said. Thus, a vocoder is basically a voice encryption or encoding device. Interestingly, the vocoder has been around since 1928 (and has been widely applied in the music industry around the '70s). While Read More

A SAN (Storage Area Network) is a network specifically dedicated to the task of transporting data for storage and retrieval. SAN architectures are alternatives to storing data on disks directly attached to servers or on Network Attached Storage (NAS) devices that are connected through general purpose networks. In order to meet the storage system’s demands, enterprises apply SAN to increase the system efficiency and capacity expansion. According to SNIA (Storage Networking Industry Association), SAN is: SAN’s purpose is to transmit data between storage systems or storage systems and client servers. Read More

How to Copy an Audio CD A CD can hold up to 80 minutes of uncompressed audio. Because of that, it is still a favorite for recording studios to put music on. Copying an audio CD is possible now with burning software and the necessary hardware built into the computer. To copy an audio CD, all you need is to the original CD, your computer to have a CD burner and then a blank CD that can hold the audio. The first step is to put the CD into the Read More

A FLOP refers to the number of floating point operations per second that a computer processor can accomplish. The floating point method is used for current measures of computer performance vice the legacy instructions per second due to the greater precision required by the CPU to execute the more scientific instruction. A petaflop is the measure of a computer processor's speed expressed in the thousand trillion floating point operations per second or one quadrillion operations per second. As a baseline reference, the average calculator just needs to be capable of Read More

Mixing heat and a laptop can be a detriment to the survivability of the laptop. With desk tops, there are many fans to handle the excess heat that builds up. However, with laptops, this is not the case because the space is restricted. In other words, there are fewer fans and less space for the heat to go, so it sits and begins to heat up the different components of the laptop such as the hard drive, memory and mother board. Monitoring the temperature of the laptop ensures that it Read More

Over the last couple of years video has become a staple of the internet. Not only have computers become more powerful and equipped to handle video images, but many websites now rely on video as either a source of entertainment or a way to transmit information. One of the most popular video files found on the Internet is called FLV. FLV stands for Flash Video. It should be noted that Flash Video is a proprietary file that was created by Macromedia, now under Adobe. Flash files are commonly used all Read More