HP 7800, rp. Processor family: Intel Celeron, Processor model: G540, Motherboard chipset: Intel Q67 Express. Display diagonal: 381 mm (15 "), Display resolution: 1024 x 768 pixels, Touchscreen technology: Resistive. Memory type: DDR3 SDRAM, Memory slots: 2 SODIMM, Maximum internal memory: 16 GB. Total storage capacity: 320 GB, Storage media type: HDD, Hard drive capacity: 320 GB. Graphics adapter manufacturer: Intel, Graphic adapter: HD Graphics