Hex is used by computers to store information because it is the most compact method to do so. Four lines of information can store 16 different conditions:
0000 is 0
0001 is 1
0010 is 2
0011 is 3
0100 is 4
0101 is 5
0110 is 6
0111 is 7
1000 is 8
1001 is 9
1010 is A (10)
1011 is B (11)
1100 is C (12)
1101 is D (13)
1110 is E (14)
1111 is F (15)
Pretty cool huh!? Your five fingers could store 32 separate counts.
Is possible. It means hexadecimal, so 0x33 = 3*16 + 3 = 51
Considering the lowest five digit hexadecimal number is 10000 (65,536) and the highest is FFFFF (1,048,575), there are 983,040 different hexadecimal numbers that are five digits.
0xc = 1100 Hexadecimal digits use exactly 4 binary digits (bits). The 0x0 to 0xf of hexadecimal map to 0000 to 1111 of binary. Thinking of the hexadecimal digits as decimal numbers, ie 0x0 to 0x9 are 0 to 9 and 0xa to 0xf are 10 to 15, helps with the conversion to binary: 0xc is 12 decimal which is 8 + 4 → 1100 in [4 bit] binary.
990 = 3DE
42
The first use of the term hexadecimal dates to 1954. It is unclear who invented the current hexadecimal notation - most likely IBM. Not all computers used hexadecimal until the end of the 70s or later. Hewlett-Packard continued to use octal instead of hexadecimal until after 1980.
Computer engineers use to use the hexadecimal code to program computers, or the base 16. Hexadecimal numbers use the digits 0 through 9, plus the letters A through F to represent the digits 10 through 15.
The highest numerical digit is 9, but hexadecimal follows that with letters going to F. So in hexadecimal, F would be the highest digit.
If you mean, for example, divide one hexadecimal number by another: In any number base, you can use basically the same method you use with decimal numbers - in the case of division, the "long division". However, you have to use the corresponding multiplication table, for example, the multiplication table for multiplying two hexadecimal digits, with a hexadecimal result.
On computers.
The hexadecimal number system is one using 16 as the base instead of the more familiar ten which we use in the decimal system.
The hexadecimal system.
The hexadecimal number system is one using 16 as the base instead of the more familiar ten which we use in the decimal system.
This is because a number represented in hexadecimal requires fewer digits. A hexadecimal string of length s can hold a number which is approx 8^s as large as a binary string of the same length.
AAAAAAAAAAAA is the Hexadecimal.
If the above is decimal then in hexadecimal it is 2964492C2. If it is binary then in hexadecimal it is 7DA. If it is octal then in hexadecimal it is 49241208.
234 in hexadecimal is EA.