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Numbers
Glossary "G"
Gigabyte (GB) One gigabyte (1GB) is equivalent to 1,024 Megabytes of data.
Glass Master The medium on which manufactures record data as the first step leading to the replication process. Consists of a glass disc larger than replicated discs, coated with photosensitive material in which the data are recorded by a laser beam recorder (laser light).
Graphic Images Many graphic file formats exist. The most common are JPEG, BMP (bitmap), TIFF, EPS and GIF. Each format has tradeoffs in quality vs. storage space. These files are typically used for stills,logos, insert and tray card layouts, labels etc.
Grayscale, half tone Breaking-up of a B/W photo into a series of patterned dots for the printing process