Elo TouchSystems 15D1. Processor clock speed: 1800 MHz, Processor family: Intel Celeron, L2 cache: 0.512 MB. Internal memory: 512 MB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 80 GB, Hard drive rotational speed: 5400 RPM, Hard drive interface: Serial ATA. Discrete graphics adapter model: GMA 3100. Audio system: ALC883, Audio output channels: 6.1