Convex Computer Corp, Richardson, Texas has added two new low-end systems to its C Series family of minisupercomputers: the C201 and C202 series of mid-range parallel systems. The C201 is a single processor system, rated at 23 Whetstone MIPS, and is expandable to the C202 by adding an additional processor into the cabinet for a performance of 46 Whetstone MIPS. The processor in the C202 is coupled with main system memory via a 145M-byte per second memory bus. Price for the C201 starts at $495,000, and the company says that numerous orders have already been taken, and some machines shipped. The C202 is set for first shipments in the fourth quarter of 1988.