Uncommon GRiDCASE 1520 (Python) portable laptop military computer, the successor to the Grid Compass. Housed in a robust magnesium case, the computer measures approximately 11.5″ x 15″ x 2.5″ closed, and the top opens to reveal a 10-inch LCD display screen, a built-in keyboard, and a 1988 system card. An expensive and high-performance computer for its time, the GRiDCASE 1520 uses the 80286, a CMOS version of the 16-bit microprocessor used in the IBM AT. It has a 16-bit wide data bus and a 24-bit wide address bus and is upwardly compatible with the 8086/8088 processor used in the IBM PC. The back features seven connector ports for “Keyboard,” “Phone Line,” “Serial RS232C,” “Parallel Printer,” “External Peripheral,” “Video Output,” and “Input Power, 16VDC.” A kickstand in the back elevates the computer for improved airflow, preventing overheating. The untested computer is in fine cosmetic condition, with some light scuffs and marks.
