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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.

This data cartridge works on several StorageTek systems. The goal is to provide cartridge compatibility across several system. It has been designed for space saving and ultra-high capacity tape. It permit to fulfill high-volume backup, archiving, and disaster recovery.

The cartridges had a total capacity of up to 8.5 TB. They were actually manufactured by the Fujifilm company, used Barium Ferrite (BaFe) magnetic particle technology to store the user data and were equipped with a Radio-Frequency IDentification (RFID) chip (for quick access to the cartridge metadata).\ The tape length inside of each cartridge is 1147 meters while it is only 5.2 microns thick. Once mounted in a tape drive, the media moves over the drive head at the speeds of up to 4.7 meters/second when reading or writing, but up to 13 meters/second when locating to a file. Since 2019, all data that had been stored on such cartridges have been copied onto more modern supports. As of 2022, CERN uses similar tapes produced by other suppliers and having a capacity of up to 20 TB.

Calculations on quantum electrodynamics.Calculations

Calculations on thermodynamics.Calculations

Representation of group U.

The mission of the Strategic Planning Unit group is to help management with the long term planning activities and resources optimisation. It provides models for medium and long-term personnel and financial planning. It is in charge of compiling the medium-term plan of CERN Scientific activities and budget estimates which is approved annually by the CERN Council. This collection contains records concerning divisional budget, forecast budget, Study Group on Administration Structure SGAS, Directorate Programme Office DIR-PO, Construction Committee (COCO) of Intersecting Storage Rings, Groupe de Travail sur les Systèmes d'Informatique de Gestion (GTSIG), long-term planning, Programme Budget System (PSB), staff statisitics , lists of personnel…

The mission of the Strategic Planning Unit group is to help management with the long term planning activities and resources optimisation. It provides models for medium and long-term personnel and financial planning. It is in charge of compiling the medium-term plan of CERN Scientific activities and budget estimates which is approved annually by the CERN Council. This collection contains records concerning divisional budget, forecast budget, Study Group on Administration Structure SGAS, Directorate Programme Office DIR-PO, Construction Committee (COCO) of Intersecting Storage Rings, Groupe de Travail sur les Systèmes d'Informatique de Gestion (GTSIG), long-term planning, Programme Budget System (PSB), staff statisitics , lists of personnel…

Reprinted from Virology, vol. 2, No 3, 1956.Reprint