Computing and computers

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        Computing and computers

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            Computing and computers

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              CERNET Interface Card
              Heritage collection CERN-OBJ-CERN-OBJ-IT-015 · Unidad documental simple · 1978
              Parte de Heritage Collection Test

              Homegrown networking technology pre-dating the internet. This is a CERNnet card developed and built at CERN. There was a lot of space on the card between the components, so the engineers decided to put their portraits on it.

              10BASE5 Ethernet Cable & Vampire Tap
              Heritage collection CERN-OBJ-CERN-OBJ-IT-016 · Unidad documental simple · 1983
              Parte de Heritage Collection Test

              10BASE5 Thick Ethernet Cable, 10Mbit/sec. In the 1980s and early 1990's, Ethernet became more popular and provided a much faster data transmission rate. This cable is one of the first ethernet cables from 1983, a thick, bulky affair. Computers were attached via "Vampire Taps" which were connectors screwed straight through the shielding of the cable.

              CDC 7600 Module
              Heritage collection CERN-OBJ-CERN-OBJ-IT-023 · Unidad documental simple · 1970
              Parte de Heritage Collection Test

              The CDC 7600 has been created by Seymour Cray. It was designed to be compatible with the 6600, which allows for a substantial increase in performance. Furthermore the rise of new technologies has enabled this performance by reducing the minor cycle clock period from 100 ns to 27.5 ns (4 time faster). A very large machine, the 7600 had over 120 miles of hand-wired interconnections. It was the most powerful computer of its time. However, this speed caused a ground-loop problem causing intermittent faults, and eventually requiring all modules to be fitted with sheathed rubber bands. The CDC 7600 was replaced in 1983 by CRAY-1A.

              IBM 3705 Communications Controller
              Heritage collection CERN-OBJ-CERN-OBJ-IT-027 · Unidad documental simple · 1972
              Parte de Heritage Collection Test

              The IBM 3705 Communications Controller is a simple computer which attaches to an IBM System/360 or System/370. Its purpose is to connect communication lines to the mainframe channel. It was a first communications controller of the popular IBM 37xx series.

              8-inch IBM floppy disk
              Heritage collection CERN-OBJ-CERN-OBJ-IT-037 · Unidad documental simple · 1971
              Parte de 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.

              StorageTek RedWood SD-3 tape drive
              Heritage collection CERN-OBJ-CERN-OBJ-IT-041 · Unidad documental simple · 1995
              Parte de Heritage Collection Test

              A helical scan recording drive, with a high-speed rotating head sweeping across the tape every few micrometers. Based on a professional video recording system, modified to be suitable for digital data recording. These are commonly used with large computer systems, typically in conjunction with a robotic tape library.

              6250 BPI Magnetic Tape
              Heritage collection CERN-OBJ-CERN-OBJ-IT-044 · Unidad documental simple
              Parte de 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.