A field-effect transistor (FET) is a semi-conductive device that is used in integrated circuits to control the conductivity of a conductive channel. FETs are highly dependent on negative and positive charges. They have many purposes, including limiting a device’s power levels, storing data, and being used as a switch for a wide variety of electronic devices. Various FET designs have been presented and produced since 1925 and have collectively allowed modern electronics to be possible. How Field-Effect Transistors Work FETs are dependent on four essential components: the base, the source, Read More

Simplex locks, now manufactured by Kaba Ilco, are simple push-button combination locks. Simplex locks are used to protect equipment rooms, labs, and FedEx-type boxes. Simplex locks are used whenever having a large number of keys would create logistical problems. Simplex Lock Combinations The Simplex lock would be a normal 5-button combination lock, except for one weakness. Each button on a Simplex lock may only be used once in a combination. A combination of 1-4-3-2 is acceptable. A combination of 1-4-3-1 will not work. This limits the Simplex lock to only Read More

WINS Server Role Security Issues A WINS server is an enhanced NetBIOS name server that can resolve NetBIOS computer names to IP addresses. The WINS database hosted on the WINS server is used to store and maintain NetBIOS computer names to IP addresses mappings. WINS registers NetBIOS computer names, and then stores these client name registrations in the WINS database. A WINS server is basically needed if there are applications that require WINS for name resolution to operate correctly. WINS is also typically needed if all your domains have not Read More

Ozone or O3, is a molecule similar to oxygen that is made up of three oxygen atoms. While ozone in the lower atmosphere is harmful to humans, plants, and animals, causing respiratory problems in humans and animals while burning some types of plants, ozone in the upper atmosphere, known as the “ozone layer”, is highly effective at preventing harmful electromagnetic radiation from the Sun and other stars from reaching the Earth. By doing this, ozone is responsible for limiting the effects of global warming. While ozone in the lower atmosphere Read More

Cloaking is a black hat SEO technique where one set of content is shown to human visitors and another set of content is shown to search engines. In cloaking, human visitors are shown the actual web page, but search engines are shown a web page which is full of spammy SEP techniques such as keyword stuffing. Cloaking by User Agent To effectively cloak a web page, the web server must be able to determine if the visitor is a human or a search engine. One technique for doing this is Read More

Error 0x0000007e is an error message that is displayed whenever a computer cannot access one of its hard drives, ports, optical drives, system files, or other critical components necessary to run the operating system. Usually, the computer’s error handler discovers these problems immediately upon booting from a device and will display a specific error message before the user is able to log in. However, if an exception occurs that prevents the error handler from discovering these problems immediately, it will display Error 0x0000007e after the computer has booted up and Read More

Layouts are important for those who own web blogs. One of the oldest blog websites is Xanga, which a wide variety of people have used and are still using today. Creating a Xanga layout is not very difficult and can be done in many ways. Making Custom Themes First, it is important to disable the Xanga default themes to get to the section that allows settings to be altered. To disable default themes, navigate to theme settings. New Users or those who have never made any changes to their layout Read More

The iPod is a portable media player created and sold by Apple Inc. It is by far the most popular portable media player in the world. iPod stores media files on a built-in hard drive. It has a number of add-on features such as address book, alarm clock, text reader, games, photo slideshow viewer and many more. Video content can also be viewed on an iPod. It has a maximum storage capacity of 160 GB. The iPod models include the following: iPod Classic iPod Touch iPod Nano iPod Shuffle Apple Read More

What is SCP SCP, or Secure Copy, is a protocol made for sharing files in a secure manner. SCP is similar to FTP, but is designed more for security and authentication than easy access. The SCP protocol runs on port 22 and uses both BSD RCP and SSH to protect the files that are being transferred. Some users speculate about the fact that SCP is just a combination of the two aforementioned protocols and does not constitute a protocol in and of itself. While SCP is widely used, it is Read More

Java is created to operate in the distributed environment on the net. It is much easier to use compared to C++. Java functions are based on the object-oriented programming model. You can use it for online video, audio, games, banking applications and chat. It is also used in various intranet applications. Microsoft Java was first developed for Internet Explorer 3. This was the fastest implementation of JVM (Java Virtual Machine) for the first couple of years after Java release. The creator of Java, Sun Microsystems, sued Microsoft for incomplete implementation of Read More