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Q: What is a grouping of 8 binary digits expressed as a decimal number?

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It is 31.

7 digits

That's not a binary number ! Binary numbers can only use the digits 1 and 0.

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.

This is just decimal, the number system that we usually use. Decimal means that there are 10 digits (0-9) as opposed to other number systems such as binary, which has only two digits.

Related questions

The same as real numbers are expressed in decimal, except only the digits 0 and 1 are used (instead of 0 to 9) and the separator between the integer and fraction part is called the binary point (instead of the decimal point). The sign if needed is the same as in decimal.

The binary number 10101000 = 168

The largest decimal number is binary 11111, which is decimal 31.

10 digits.

56 in binary is 111000. Unlike the decimal number system where we use the digits.

It takes 7 digits.

All I know is that when a number is negative, you convert the decimal into binary and if it is negative you put 1111 before the binary digits.

You can look it up (00010110) or convert each numeral to binary individually. 11111111 is 255 decimal and is the largest number expressible with 8 binary digits.

i think we can use 421 code to convert it... for the question given let us consider digits after decimal point... first group the digits in such a way that each group has three digits... grouping must be done from the rightmost digit......then apply 421 code...likewise same procedure is followed for digits b4 the decimal points... Hence the answer is 415.151 i think it will go like this 10 001 101.011 010 01 grouping before decimal FM right and after FM left and using 8421 code it is : 215.322

It is 31.

11111111 = 255

-- The decimal system (base-10) uses 10 digits to write all numbers. -- The binary system (base-2) uses 2 digits to write all numbers.

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