This HP TouchSmart all-in-one desktop computer features an Intel Core 2 Duo P7570 processor running at 2.26GHz for smooth performance. With 4GB of RAM, you can run multiple applications simultaneously without any lags. The hard drive capacity is not specified, but it can be easily upgraded to suit your needs. This particular unit does not come with an operating system or a hard drive, but it is compatible with Windows 10. The computer is in excellent condition and has been tested for quality assurance.300-1120