Congratulations! You just bought the fastest, most up-to-date computer in the world! It’s so powerful, in fact, you couldn’t possibly find a more complex or more efficient motherboard, the computer’s main circuit board. It has heaps of RAM, or random-access-memory. RAM lets data anywhere be returned in any order. Your computer also has a bunch of ROM, or read-only-memory. This memory is nearly impossible to change, so it is used to dole out software that is closely related to hardware. Your system’s external hardware includes a flat screen monitor, a color laser-jet printer, and a surround-sound package. After hauling the system to your house, you quickly unpack items from their boxes, connect all the wiring, and then turn on the console. You wait in anticipation as the memory loads. Then, unexpectedly, the screen blanks out. What happened? What is wrong with your computer? You check the wirings, and chuckle as you belatedly realize you forgot to install the operating system. The DVR program is as important to surveillance equipment as the operating system is to your computer. Surveillance cameras would not be the way they now are without a DVR program. ...