The number of 4 digit codes, using different digits, is 10*9*8*7 = 5040.
However, computer passwords can, usually, have repeated digits and, if that is allowed, you can have 104 = 10000 codes.
1344
You can make 916,132,832 different five-character passwords if the code can be a mixture of letters and digits in any order and is case sensitive.
7
3!*3!=36For example, if you want to use the alphabets a,b,c and three digits 1,2,3 you can make the following 36 different passwords (3 letters followed by 3 digits)abc123abc132abc231abc213abc312abc321acb123acb132acb231acb213acb312acb321bca123bca132bca231bca213bca312bca321bac123bac132bac231bac213bac312bac321cab123cab132cab231cab213cab312cab321cba123cba132cab231cab213cab312cab321
The different digits have different values.
The number of password options available could be endless. If each password must consist of 4 symbols with the first one being a letter and the rest a number, you have 26000 possibilities.
1344
You can make 916,132,832 different five-character passwords if the code can be a mixture of letters and digits in any order and is case sensitive.
11 DIGITS
7
3!*3!=36For example, if you want to use the alphabets a,b,c and three digits 1,2,3 you can make the following 36 different passwords (3 letters followed by 3 digits)abc123abc132abc231abc213abc312abc321acb123acb132acb231acb213acb312acb321bca123bca132bca231bca213bca312bca321bac123bac132bac231bac213bac312bac321cab123cab132cab231cab213cab312cab321cba123cba132cab231cab213cab312cab321
All the digits matter so if there is an extra digit it is a different computer.
1000000
In the context of computer memory, an address is used to access the computer's primary storage memory. These addresses consist of fixed-length digits displayed as unsigned integers.
5040
Base two is also referred to as the binary number system.In the decimal system we use 10 different digits (0 to 9) to represent numbers. However, all numbers in binary consist of a combination of only 2 different digits; a "0" and/or a "1".All numbers can be represented using only these 2 digits.
500