Search results
Results from the WOW.Com Content Network
Drawings from IBM Floppy Disk Drive Patents. IBM's decision in the late 1960s to use semiconductor memory as the writeable control store for future systems and control units created a requirement for an inexpensive and reliable read only device and associated medium to store and ship the control store's microprogram and at system power on to load the microprogram into the control store.
8-inch floppy disk, inserted in drive, (3½-inch floppy diskette, in front, shown for scale) 3½-inch, high-density floppy diskettes with adhesive labels affixed The first commercial floppy disks, developed in the late 1960s, were 8 inches (203.2 mm) in diameter; [4] [5] they became commercially available in 1971 as a component of IBM products and both drives and disks were then sold ...
Upon the basis of the Juusyoku Record patent issued in 1952, Nakamatsu claims to have invented the first floppy disk [3] well before IBM's floppy disk patent was filed in 1969. [26] However, what Nakamatsu patented in 1952 was a paper for optical sound player. [ 12 ]
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...
It was indeed plotted in long daily phone calls, and we would post floppy disks (and this was back in 1988 when floppy disks really were pretty darn floppy) back and forth. [7] Pratchett said: I think this is an honest account of the process of writing Good Omens.
They were made from an inexpensive, available material: used X-ray film (hence the name roentgenizdat). Each large rectangular sheet was trimmed into a circle and individually recorded using an improvised recording lathe. The discs and their limited sound quality resemble the mass-produced flexi discs and may have been inspired by it. [citation ...
Comments from Today’s Crossword Constructor. Jared: This was my first time co-creating a USA Today puzzle, and it was a ton of fun! Amanda is wonderful to work with. I pitched her the theme ...
However, by the late 1980s, hard disk drives were standard on all but the cheapest PC and floppy disks were used almost solely as transport media. Most hard disk drives in the early 1980s were sold to PC end users by systems integrators such as the Corvus Disk System or the systems manufacturer such as the Apple ProFile.