detachable monitor, modular computer With a detachable LCD panel monitor and computer unit, Series ARP-1720AP flat-panel computers are easy to maintain and upgrade. Many configurations are available, from a PIII CPU to a powerful P4 CPU. Computers can also be configured with 24 v dc or 100-230 v ac power supply. Other features include multiple expansion slots and an optional RAID-1. Arista Corp.