Decimal computer Decimal computer Decimal computers are computers which can represent numbers and addresses in decimal as well as providing instructions to operate on those numbers and addresses directly in decimal, without conversion to a pure binary representation. Some also had a variable wordlength, which enabled operations on numbers with a large number of digits. Early computers that were exclusively decimal include the ENIAC, IBM NORC, IBM 650, IBM 1620, IBM 7070. In these machines, the basic unit of data was the decimal digit, encoded in one of several schemes, including binary-coded decimal or BCD, bi-quinary, excess-3, and two-out-of-five code. Except for
Repeating decimal repetition. Examples of such irrational numbers are the square root of 2 and . There are several notational conventions for representing repeating decimals. None of them are accepted universally. In English, there are various ways to read repeating decimals aloud. For example, formula_1 may be read "one point three repeating", "one point three repeated", "one point three recurring", or "one point three into infinity". In order to convert a rational number represented as a fraction into decimal form, one may use long division. For example, consider the rational number 5/74: etc. Observe that at each step we have a remainder;