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64-bit refers to sixty-four binary (0 or 1) units of integer data. This allows for up to 18,446,744,073,709,551,616 combinations of values.

  • 64-bit color, is typically split into four sets of 16-bit values for 65,536 levels per RGBA channel (red, green, blue, and alpha). The three 16-bit RGB values deliver 281,474,976,710,656 unique colors, the same as 48-bit color, but with the addition of 65,536 levels of transparency defined by the alpha channel. This range is also known as deep color. The first application from Adobe Systems to support 16-bits-per-channel color is Photoshop 2.5 in 1993.
  • 64-bit sound allows for a range of up to 18,446,744,073,709,551,616 values (−9,223,372,036,854,775,808 to +9,223,372,036,854,775,807) per sample (Hertz).
  • 64-bit addressing allows for access to up to 18,446,744,073,709,551,616 bytes, or 18.4 exabytes of data.
  • 64 bits of data make 8 bytes, referred to by programmers as a quadword.

Adobe Creative Cloud presently only supports 64-bit systems. With the exception of Adobe Acrobat, which still retains legacy support, the last applications to support 32-bit were released in 2019.[1]

ReferencesEdit

  1. Upcoming Changes to Creative Cloud OS Support for Windows 32-Bit, Adobe Blog. 2019-06-18.

See alsoEdit

External linksEdit

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