1, Operating System: Proprietary 2, CPU ARM9 Core 266MHz processor 3, RAM 4M ROM 8M 4 .Display 320 x 240 pixels, Product Description: barcode reader PT-20 handheld terminals PT-20 is a wireless hand-held data collection devices, built-in high-performance CCD scanner, and 4MB RAM and 8MB ROM storage space, a 2.4-inch color screen, 29 key waterproof white backlight, so you can be in a dark ...