ACCTG 1 Lecture Notes - Lecture 21: Tebibyte, Vacuum Cleaner, Hard Disk Drive
Document Summary
Computers use the binary number system where 1 means on and 0 means off. The denary number system has base 10 and counts in multiples of 10. The binary number system has base 2; only the values 0" and 1" are used to represent each digit. A representation of a binary number would be: 1 1 0 0 1 1 1 0. It is straightforward to convert a binary number to a denary number. Whenever 1 appears in a column, the column value is added to the total. 1 1 0 0 1 1 1 0 in binary is calculated by looking at each column value: 128 + 64 + 8 + 4 + 2 = 206 (denary value) Convert the following binary numbers into denary: 0 0 1 1 0 0 1 1 = 64 + 32 + 16 + 8 + 4 + 2 + 1 = 127 (denary: 1 0 0 1 1 0 0 1 =
