Computing and computers

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            Computing and computers

              260 Archival description results for Computing and computers

              260 results directly related Exclude narrower terms
              6250 BPI Magnetic Tape
              CERN-OBJ-IT-044 · Item
              Part of Heritage Collection Test

              These are magnetic coil bands designed by IBM with 6250 BPI. BPI means bits per inch and specifies the data density a magnetic coil can hold.
              6250 BPI Magnetic Tape
              6250 BPI Magnetic Tape
              CERN-OBJ-IT-044 · Item
              Part of Heritage Collection

              These are magnetic coil bands designed by IBM with 6250 BPI. BPI means bits per inch and specifies the data density a magnetic coil can hold.
              8-inch IBM floppy disk
              8-inch IBM floppy disk
              CERN-OBJ-IT-037 · Item · 1971
              Part of Heritage Collection

              The 8-inch floppy disk was a magnetic storage disk for the data introduced commercially by IBM in 1971. It was designed by an IBM team as an inexpensive way to load data into the IBM System / 370. Plus it was a read-only bare disk containing 80 KB of data. The first read-write version was introduced in 1972 by Memorex and could contain 175 KB on 50 tracks (with 8 sectors per track). Other improvements have led to various coatings and increased capacities. Finally, it was surpassed by the mini diskette of 5.25 inches introduced in 1976.
              8-inch IBM floppy disk
              CERN-OBJ-IT-037 · Item · 1971
              Part of Heritage Collection Test

              The 8-inch floppy disk was a magnetic storage disk for the data introduced commercially by IBM in 1971. It was designed by an IBM team as an inexpensive way to load data into the IBM System / 370. Plus it was a read-only bare disk containing 80 KB of data. The first read-write version was introduced in 1972 by Memorex and could contain 175 KB on 50 tracks (with 8 sectors per track). Other improvements have led to various coatings and increased capacities. Finally, it was surpassed by the mini diskette of 5.25 inches introduced in 1976.