While each may have its advantages, nothing lasts forever-including data storage devices. Of course, these storage technologies have also been improved over time. While we’ve made tremendous advances in data storage technology, tape and disks are still widely used, along with newer data storage formats like flash. Magnetic disks took four more years to arrive on the scene with IBM’s RAMAC 305, the world’s first computer based on then-new hard disk drive technology. Then, in 1951 UNIVAC introduced the first tape storage device for a commercial computer, offering relatively low cost, portability, and unlimited offline capacity. It used a cathode ray tube-much like an analog TV picture tube-to store bits as dots on the screen’s surface. The first high-speed, entirely electronic memory was developed at Manchester University and tested in 1947. Digital media has been with us for a very long time.
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