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What do computers use to represent on and off? 0 and 1 1 and 2 RGB Megabyte
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What do computers use to represent on and off? 0 and 1 1 and 2 RGB Megabyte

User Christian Owens
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We use 0 to represent "off" and 1 to represent "on". Each one of the switches is a bit. A computer is called a "64-bit" computer if its registers are 64-bits long (loosely speaking). Eight switches in a row is a byte.
User Kyle Parsons
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