Zipping a folder is just like zipping a file and can easily be done within minutes in order to compress a folder's contents and keep the files organized. Generally, any program that can zip a file can also zip a folder. While some users may not be familiar with the most popular zipping software, this article will list a number of free zipping programs that will allow the user to zip his/her folders. WinZip WinZip is the most popular zipping program and can quickly zip files and folders of all Read More

Active Directory fulfills all the needs of an organization by designing a directory structure. It provides flexibility in designing the business structure according to current and future needs for an organization, so it should be examined prior to installing active directory. In Active Directory, resources are organized in a logical structure, and this grouping of resources logically enables a resource to be found by its name rather than by its physical location. Benefits of AD Logical Structure Logical Structure provides more network security by means of providing access to resources Read More

Microsoft Office is a software suite that includes a number of Microsoft programs that can be used to create tables, charts, presentations, websites, blogs, formulas, and a vast array of other documents. Microsoft Office has been popular since its introduction in 1989, which only consisted of Microsoft Word, Microsoft Excel, and Microsoft PowerPoint at the time. Since then Microsoft Office has grown significantly larger, with the addition of Project, Access, InfoPath Designer, InfoPath Filler, OneNote, Outlook, Publisher, SharePoint, Picture Manager, Clip Organizer, and Upload Center. Although Microsoft designed, owned, and Read More

Basic diodes are constructed from two semiconductor materials, germanium or silicon, to create a basic PN-junction. When two single diodes are connected to each other back-to-back, two PN-junctions that are connected in series are created. They share a common N or P terminal, which forms the basis of a BJT or Bipolar Junction Transistor. The BJT is a three layer, three terminal, and two junction device. BJTs are normally used in discrete circuit design as well as high-demand analog circuits such as RFs for wireless systems. They have also been Read More

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

Landfill energy production operates similar to the way natural gas power plants do. Landfills could produce sufficient amounts of biogas (components of which are similar to natural gas and comprised mostly of methane) which could be refined and used as fuel for many applications that need it such as power plants. Landfills have always been used as a place to accumulate and isolate various kinds of waste materials. These landfills are also sometimes used for the management of organic waste materials such as agricultural wastes. These organic materials and other 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

Junction gate Field-Effect Transistor (JFET) is also known as JUGFET. The JFET is the most simple type of field effect transistor currently in use and has either voltage controlled resistance or an electronically controlled switch. When using a JFET, the electric charge flows in a semiconducting channel that is located between the source and drain terminals. When a bias voltage is applied to the gate terminal, the channel is pinched in order to switch off the electric current. JFET History Julius Lilienfeld was the first to discuss/predict the JFET in Read More

A boot sector virus is a computer virus which infects the boot sector on hard disks, floppy disks, and theoretically also other bootable media such as CD’s and DVD’s. A boot sector virus does not need to be able to successfully boot the victims computer to infect it. Because of this, even non-bootable media can spread a boot sector virus. Once the infected computer successfully boots, the boot sector virus stays in memory and infects floppies and other media when they are written to by the infected computer. Boot sector Read More

What is VGA? The Video Graphics Array (VGA) is a type of display hardware. The VGA connector is a 15 pin connection which relays all of the visual data to be shown to the computer screen. Each pin corresponds to a color, ground or placement information for the display. This has been in use ever since the 1990s and has improved in quality of the display as well. It is now most commonly found on most built in computer hardware accelerators, video cards as well as high definition televisions. The High Density Video Graphics Array Read More