To install DirectX, it is recommended that the latest DirectX version is downloaded directly from Microsoft. Go to the Latest DirectX End-User Runtime download page using Internet Explorer. Click the Download button. Click the Run button to run dxwebsetup.exe immediately. Click the next Run button. Check the circle next to “I accept the agreement.” Click …
An Introduction to the Public Key Infrastructure (PKI) It has grown more important to ensure the confidentiality and integrity for data communication where an organization's network contains intranets, extranets, and Internet Web sites. Because of the connectivity of networks today, an organization's network is exposed to unauthorized users who could possibly attempt to access and …
IIS stands for Internet Information Services and it is a type of software that runs on servers using Microsoft Windows. IIS is the second most popular server software right behind Apache servers, which are open source and usually less expensive to run. Servers that run IIS include FTP, HTTP, HTTPS, SMTP and NNTP. One of …
A multi-search engine combines many search engines into one unified search engine. It is a fast and comprehensive way of casting a wide net on the Word Wide Web. There are thousands of search engines on the Internet. Although some are quite good, none of them is comprehensive. Some may use a small database to …
Photonic crystals are those that manipulate how photons are absorbed or reflected off of them. They occur in nature and are made of dielectric nanostructures that allow certain wavelengths to pass through them while blocking other wavelengths. The visible light portion of the electromagnetic spectrum’s wavelengths is responsible for colors, therefore photonic crystals can spontaneously …
The SCM (Station Class Mark) is a 4 bit number which holds three different pieces of information. Your cellular telephone transmits this information (and more) to the cell tower. Bit 1 of the SCM tells the cell tower whether your cellphone uses the older 666 channel cellular system, or the newer 832 channel cellular system. …
The biuret test is one in which a researcher can determine whether a mixture has peptide bonds in it or not. By using the biuret test, in seconds an individual knows if they are there. Once they know that the peptide bonds are, in fact, there, they can then attempt to measure the amount of …
NAT (Network Address Translation) is a technique for preserving scarce Internet IP addresses. Why NAT? The current Internet uses IP addresses in the form xxx.xxx.xxx.xxx. A sample IP address might be 202.187.4.212. Because of the way these IP addresses are allocated, there started to be a shortage of available IP addresses. The current IP (Internet …
Sonicwall is a company that produces routers, modems, VPN (Virtual Private Network) hardware, and firewall solutions for both personal and commercial users. Sonicwall routers, in particular, are widely distributed to an array of consumers who access the Internet through high speed secure connections due to the support that Sonicwall products provide. Sonicwall routers generally consist …
In order to understand the history of satellite television, you first have to go all the way back to the 1950's during the space race between the USA and Russia. The first satellite to orbit the earth was Sputnik, launched by the Russians in 1957. It was 6 years later until the first communications satellite …