Elo TouchSystems 15A1. Processor clock speed: 1000 MHz, Processor family: Intel Celeron, Processor model: Celeron. Internal memory: 512 MB, Internal memory type: DDR2-SDRAM. Total storage capacity: 40 GB, Hard drive interface: Serial ATA. Discrete graphics adapter model: GMA 900. Display diagonal: 381 mm (15 "), Viewing angle, horizontal: 70 °, Viewing angle, vertical: 60 °