Many elements combine to create excellent computing power on the HP Compaq PC. The processor on the computer is an Intel Core 2 Duo 2.33 GHz processor, which provides enough power to run most of the popular programs. There are 2 GB of DDR2 RAM installed on the mini tower PC with the maximum available RAM of 8 GB. The hard drive on the HP Compaq DC7800 desktop features 160 GB of disk space ensuring users have enough room to store programs as well as personal files. The HP Compaq PC features integrated high-definition audio so that users can enjoy a great audio with their media files. There is an Intel graphics media accelerator 3100 also built into the computer. There is a DVD-RW drive with LightScribe technology, so that users of the HP Compaq DC7800 CMT desktop. The mini tower PC features Microsoft Windows Vista Business so that users can enjoy all of the professional elements that the operating system has to offer. There are two USB 2.0 ports on the computer in the front as well as six USB 2.0 ports on the back. The HP Compaq DC7800 CMT desktop also features an RJ-45 Ethernet card, 9-pin serial input, and 15-pin VGA. Those who are looking for a computer with a professional operating system will enjoy the features of HP Compaq PC.