Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 Last Bit
 MSB, Most Significant Bit
 LSB, Least Significant Bit
 First Bit

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Digital Electronics
ASCII

 is used only in western countries
 has 128 characters including control characters
 is a subset of 8-bit EBCDIC
 is version II of the ASC standard

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