title: Why only & and | are called bit wise operators?
body: <p>In programming languages operators like &amp; and | are called bit wise operators. My question is even addition(+) and subtraction(-) or to that matter any mathematical expressions are bit wise operations. I mean the calculation happens on binary data as machine cannot understand decimals. I think for addition also there will be an add gate so why only operators like &amp; and |(or) are called bit wise operators.</p>