CheckIt 2.1 1989 TouchStone Software Corporation For DOS CheckIt is a diagnostic tool for generic PC/XT/AT compatible computers. It can perform test on RAM, hard disks, video cards, floppy disks, motherboard resources, and I/O devices. It has an easy to use menu interface but can also run tests non-interactively. Please see the readme as this version is not compatible with some Tandy models. This software can run from the floppy disk. Requires about 384K ram (330k free) This archive includes two 360k floppy disk images.