Affichage de 2106 résultats

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NextStation Color
Heritage collection CERN-OBJ-CERN-OBJ-IT-109 · Pièce
Fait partie de Heritage Collection Test

Steve Jobs created a NeXT generation operating system. The NeXTstation provides functionality that other computers are just providing today.The NS Color I/O cable attaches to the back of the computer on one end and on the other end the cable is split to connect to the display and the Sound Box. The Sound Box also has a keyboard signal port. Like a MAC or SUN of the same vintage, the mouse connects to the keyboard. These boxes run NEXTSTEP, which a full object-oriented OS. It has UNIX as a base and provides a gorgeous graphical interface. NEXTSTEP was also available for other platforms. They tend to run a little slow. But they have great digital sound and full color displays.

CHT, CERN HIPPI Testbox
Heritage collection CERN-OBJ-CERN-OBJ-IT-116 · Pièce · 1990
Fait partie de Heritage Collection Test

To allow CERN to test and maintain HIPPI equipment (High Performance Parallel Interface), a powerful test falcility is required. A tester has been developed at Los Alamos National Laboratories [9,10]. The CERN HIPPI testbox allows testing of HIPPI equipment both inside and outside the specifications. This includes the possibility of deliberately introducing errors. The main features of this testbox are: Manual set-up Processor controlled set-up Possibilities for remote analysis Checking the HIPPI specifications Checking illegal conditions

IBM 5150 computer
Heritage collection CERN-OBJ-CERN-OBJ-IT-118 · Pièce · 1981
Fait partie de Heritage Collection Test

IBM’s first personal computer arrived nearly 10 years after others companies, but instantly legitimized the market. IBM introduced its PC in 1981. IBM equipped the model 5150 with a cassette port for connecting a cassette drive. The first IBM PC ran on a 4.77 MHz Intel 8088 microprocessor. The PC came equipped with 16 kilobytes of memory, expandable to 256k. The PC came with one or two 160k floppy disk drives and an optional color monitor. The price tag started at $1,565, which would be nearly $4,000 (about €3,400) today.

HP 2671G GRAPHICS
Heritage collection CERN-OBJ-CERN-OBJ-IT-119 · Pièce · 1981
Fait partie de Heritage Collection Test

The 2671 was a text-only printer with a maximum print speed of 120 characters per second. The 2671 printers are very robust. For paper, they use normal thermal roll paper sold in most office supply stores for older fax machines. Although thermal printing is a quiet technology, the paper advance mechanism of these printers is plenty loud.

VICI Repeater
Heritage collection CERN-OBJ-CERN-OBJ-IT-129 · Pièce
Fait partie de Heritage Collection Test

This is for HIPPI cable connections betzeen 25 Metres and 50 Metres. This repeater was developped at Los Alamos National Laboratories.

NEDDI
Heritage collection CERN-OBJ-CERN-OBJ-IT-130 · Pièce · 1990-1999
Fait partie de Heritage Collection Test

NEDDI (Never Ending Destination Interface). It was used for test purposes. It handles the HIPPI hardware handshake regardless of Data. The NEDDI was developed at CERN and manufactured at CES in Geneva.

Slice through an LHC focusing magnet
Heritage collection CERN-OBJ-CERN-OBJ-AC-042 · Pièce
Fait partie de Heritage Collection Test

Slice through an LHC superconducting quadrupole (focusing) magnet. The slice includes a cut through the magnet wiring (niobium titanium), the beampipe and the steel magnet yokes. Particle beams in the Large Hadron Collider (LHC) have the same energy as a high-speed train, squeezed ready for collision into a space narrower than a human hair. Huge forces are needed to control them. Dipole magnets (2 poles) are used to bend the paths of the protons around the 27 km ring. Quadrupole magnets (4 poles) focus the proton beams and squeeze them so that more particles collide when the beams’ paths cross. Bringing beams into collision requires a precision comparable to making two knitting needles collide, launched from either side of the Atlantic Ocean.

LHC bending magnet coil
Heritage collection CERN-OBJ-CERN-OBJ-AC-043 · Pièce
Fait partie de Heritage Collection Test

A short test version of coil of wire used for the LHC dipole magnets. The high magnetic fields needed for guiding particles around the Large Hadron Collider (LHC) ring are created by passing 12’500 amps of current through coils of superconducting wiring. At very low temperatures, superconductors have no electrical resistance and therefore no power loss. The LHC is the largest superconducting installation ever built. The magnetic field must also be extremely uniform. This means the current flowing in the coils has to be very precisely controlled. Indeed, nowhere before has such precision been achieved at such high currents. Magnet coils are made of copper-clad niobium–titanium cables — each wire in the cable consists of 9’000 niobium–titanium filaments ten times finer than a hair.