Computer Architecture HNC Computing

Computer Architecture

A)
1) The Arabic method of representing numbers that is in common use today is decimal, which is based on the number ten. Within decimal we use the numbers 0 to 9 (also known as symbols); we use these symbols to display value. Hence in decimal the value is equal to the symbol and its position.

However the Roman system of numbering is based on letters (also know as characters). Within Roman they used the characters I, V, X, L, C, D&M. Because this is not a Base system it makes arithmetic very difficult. As well as this within Roman there is no way to represent zero and no way to represent negative numbers.


2) Base two is known as binary this is represented by the digits 1 & 0, each number 1 or 0 is known as a bit.

An example of binary would be: 2(3) 2(2) 2(1) 2(0)
8 4 2 1
1 1 1 1
(1*8)...