Consumers can opt for built in Hard Disc Drive if they purchase online. It uses the ADFS file system for both floppy and hard disc access. This type of hard disc is becoming increasingly smaller in size. Unisteel manufactures miniature screws and precision metal components (e.g. for smartphones and hard disc drives). The ABC 1656 was a 1600 model with a hard disc capacity of or instead. The HDC-HS300 features a 120GB hard disc drive for storage. A hard disc option has been dropped from the range. These may be hard disc drives or EEPROMs for instance. Nevertheless, a DVD-RAM behaves much like a hard disc drive if somewhat slower. The HP 7935 was a business computer hard disc drive system manufactured by Hewlett Packard. No hard disc recording, no antiseptic production, just good old fashioned recording live on tape.