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How many different values can be represented by 4 binary digits?
24, or 16 (0 through 15) One binary digit (bit) can have 21 values (0 or 1). Two bits can have 22 values. Three bits can have 23 values. A five-bit number can have 25 values... and so on...
What is the largest number that can be represented by a single bit in binary?
1. A single bit can represent two different values, 0 and 1. Then simply take the largest of those two possible values, 1, and that's your answer.
What are the advantages and disadvantages of binary code decimal?
Advantage of binary over decimal: information can be recorded and stored in any dichotomous variable: magnetised or not magnetised (most electronic media), pit or no pit (optoelectronic media CDs/DVDs). For decimal it would be necessary to store as 10 different levels of magnetisation or depths of pits. Not so easy to make such a system error-free. Advantage of decimal over binary: fewer "digits" required. Every ten binary digits (1024 values) can be replaced by just a shade more than three decimal digits (1000 values). So the number of digits to be stored is less than a third.
How many unique values are possible using a number consisting of thirty two binary digits?
It would be 2 raised to the power 32: 4,294,967,296.
What is the binary number for 238?
The binary number is 11101110. A binary number represents exponential values of 2, in this case 8 digits for 128, 64, 32, 16, 8, 4, 2, and 1 238 = 128 + 64 + 32 + (0x16) + 8 + 4 + 2 + (0x1)
