PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Conformity test. A technician testing the quality of data held on CD-Roms (compact disc read-only memory). The discs are tested immediately after being burnt and then again after artificial aging. The display on the monitor shows the presence of numerical errors (black) and a fingerprint (yellow). Photographed at the national testing laboratory, France.
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