A network switch is a hardware device that joins multiple computers together on a single local area network (LAN). Network switches are almost identical to network hubs, but a switch usually contains more intelligence and a slightly higher cost than a hub. Network switches are capable of inspecting data packets as they are received by […]

This is the second video in our PHP programming for beginners series. PHP is a very useful and popular web programming language and is not that hard to learn once the basics are understood. In this lesson, we will be focusing on the echo and print statements.

We show you how to install a replacement video card into a Dell XPS 410 tower. Video cards are also called a video adapter, display card, graphics card, graphics board, display adapter or graphics adapter. Most video cards offer various functions such as accelerated rendering of 3D scenes and 2D graphics, MPEG-2/MPEG-4 decoding, TV output, […]

This is the first video in our PHP programming for beginners series. PHP is a very useful and popular web programming language and is not that hard to learn once the basics are understood. In this lesson we will briefly describe what PHP is and some of its practical uses. We will begin this class […]

Two simple ways to fix a stuck or broken CD or DVD optical drive without the use of a hammer. If your CD tray won’t open and all you hear is a clicking noise then this video might solve your issues. We also show a method of testing the drives outside of a machine.