Signedin black outlined and black printed letters on orange label at the top of each disk: digital / software
hand-written in black ink on white label (placed overtop of another label) disk one: Rx2 / VAX 11780 / MICRO DIAG / #1 / 2/10/86
in printed black type on visible part of covered label on disk one: 039795 / XDIAG / [Cor]poration
in printed black letters on white lable on disk one: digital
in black printed letters on white label underneath orange lable on disk two: AS - EI59T-DE / Rx3 VAX 11780 MICRO DIAG #2 / PROPERTY OF DEC / © 1977, 83 Digital Equipment Corporation
in printed black letters on white label next to orange label on disk three: AS-E99IQ-DE / Rx6 11780 MICRO DIAG #2 / PROPERTY OF DEC / © 1978, 83 Digital Equipment Corporation
Inscribedin black printed letters on a clear label on the left-hand side of disk one: Confidential Diagnostic / Software Digital / Equipment Corporation / Valid Right-to-Use / Liscence Required
in white letters on small round, red lable on disk one: 11
FunctionFloppy disks are for computational data storage and circulation. Information (files) and programs can be saved onto and recovered from them. Floppy disks are both read and written by disc drives, often stored inside the main system unit of a computer. Disk drives contain a cylindrical spindle that fits into the hole through the center of the disk. The spindle spins the circular magnetic memory medium inside the plastic casing. The drive reads and writes on the memory medium through contact points revealed in the cutout sections on the face of the disk.
These particular disks were used by Digital Equipment Corporation. One disk contains a label indicating that the disk was used for confidential diagnostic purposes.
A more detailed discussion of the functioning, history, and uses of floppy disks is available here.