Requirements for ZealOS User Skills Required * Knowledge of the C programming language. Supported Hardware * x86_64 PC compatible computer. (Obviously, you need 64-bit hardware for a 64-bit operating system.) * 32-bit color high-res VBE graphics. * Most keyboards and mice. * Minimum 256Meg RAM. * Internal PC Speakers. * CD/DVD-ROMs (not SCSI), RedSea or ISO9660 file system. * SATA hard drives. (SATA, mSATA, m.2) * A few networking cards. Unsupported Hardware * No graphics acceleration. * No sound cards. * No USB devices, except keyboard and mouse in legacy mode. No, you can't use flash memory cards. * No printers.