Bit (API)
From ComputerCraft Wiki
The Bit API is for manipulating numbers using bitwise binary operations.
Bit (API)  
Return  Method name  Description 
number value  bit.blshift(number n, number bits)  Shifts a number left by a specified number of bits. 
number value  bit.brshift(number n, number bits)  Shifts a number right arithmetically by a specified number of bits. 
number value  bit.blogic_rshift(number n, number bits)  Shifts a number right logically by a specified number of bits. 
number value  bit.bxor(number m, number n)  Computes the bitwise exclusive OR of two numbers. 
number value  bit.bor(number m, number n)  Computes the bitwise inclusive OR of two numbers. 
number value  bit.band(number m, number n)  Computes the bitwise AND of two numbers. 
number value  bit.bnot(number n)  Computes the bitwise NOT of a number. 
Deprecated Functions
These functions have been deprecated. These functions have been removed from ComputerCraft .

Bit (API)  
Return  Method name  Description 
table bit_tbl  bit.tobits(number n)  Converts a number to an array (numericallyindexed table) containing the corresponding binary bit values. 
number value  bit.tonumb(table bit_tbl)  Converts an array (numericallyindexed table) of 0 and 1 values representing a number in binary into that number. 