Yes.
1 is a single digit, 0 is the absence of a digit.
four
The binary number 1111 is 15. The digits in a binary number are exponents of 2 rather than 10, so that for a four digit number in binary, the digit places represent 8, 4, 2, 1 instead of increasing values of 10. 1111 = 8+4+2+1 = 15
That is called a "bit", short for "binary digit".
The only two numbers that represent a binary digit are 0 and 1
Yes.
Neither of the following are true about 1 bit, it can not represent decimal values 0 and 9 nor can it be used to represent one character in the lowercase English alphabet and one binary digit four binary. A true statement would be that 1 bit is represented by the decimal values 0 or 1.
A single binary digit can represent one of two states: 1 or 0. These are often renamed as "true and false" or "on and off."
1 is a single digit, 0 is the absence of a digit.
four
The binary number 1111 is 15. The digits in a binary number are exponents of 2 rather than 10, so that for a four digit number in binary, the digit places represent 8, 4, 2, 1 instead of increasing values of 10. 1111 = 8+4+2+1 = 15
three
A 0 or 1 in a binary number is called a bit. A binary number is made up of only ones and zeroes.
The number 23 is 10111 in binary. The digits in a binary number are exponents of 2 rather than 10, so that for a five digit number in binary, the digit places represent 16, 8, 4, 2, 1 instead of increasing values of 10. 10111 = 16+0+4+2+1 = 23
The binary number 1000 is the decimal (base 10) number 8. The digits in a binary number are exponents of 2 rather than 10, so that for a four-digit number in binary, the digit places represent 8, 4, 2, 1 1000 (binary) = 8 + (0x4) + (0x2) + (0x1) = 8
The number 189 in binary is the eight-digit number 10111101. The digits in a binary number are exponents of 2 rather than 10, so that for an eight-digit number in binary, the digit places represent 128, 64, 32, 16, 8, 4, 2, 1 instead of increasing values of 10. 10111101 = 128 + (0x64) + 32 +16 + 8 + 4 + (0x2) + 1 = 189