HP Compaq Tablet PC TC1000 TM5800/1 GHz 256M/30G 10.4" TFT XGA WLAN+modem XP Tablet PC Edtion. Processor clock speed: 1 GHz. Internal memory: 0.25 GB. Total storage capacity: 30 GB. Display diagonal: 264.2 mm (10.4 "). Operating temperature range (T-T): 10 - 35 °C, Operating relative humidity range: 10 - 90 %