It seems as if all of our current technology is coming out in a digital form, making our lives that much more convenient. Remember the days of have to put a tape into the VCR and pressing record right when a program you wanted to tape came on? Well thank goodness those days are behind us.

Today, many people have something that is called a DVR, digital video recorder. This is a device that allows users to record video (television shows, movies, etc) in a digital configuration to some sort of recall vehicle within the DVR.

A DVR can come in the form of software for your computer, DVR software built in to a television, stand-alone DVR boxes, and portable media players.

Network switches are computer networking devices that are used to connect segments of a network. The switch is able to process the data that is being transferred throughout the network and direct it using a data link layer.

These switches are a big part of Ethernet LAN’s, local are networks and have ports of different speeds. Operating at the data link layer of an OSI model, network switches operate at different OSI layers or can operate at a numerous amount of layers and is then referred to as a multilayer switch.