In computer world data is digital information stored in memory. Computer programs are to solve the problem of human beings. So data is very much related to the raw facts around us in terms of numbers and names.
Following picture provides information specific to data type and size I printed using C program for my laptop.
I have put each byte as pair of nibbles for better understanding. For example : char is shown a 44 . It means 4+4 = 8 bits.
