title: Is ASCII code in matter of fact 7 bit or 8 bit?
body: <p>My teacher told me ASCII is an 8-bit character coding scheme. But it is defined only for 0-127 codes which means it can be fitted into 7 bits. So can't it be argued that ASCII is actually a 7-bit code?</p>
  <p>And what do we mean to say at all when saying ASCII is a 8-bit code at all?</p>