title: What do "chunk", "block", "offset", "buffer", and "sector" mean?
body: <p>I have seen some of the scripts which are either dealing with archive or binary data or copy files (not using python default functions) use <em>chunk</em> or <em>block</em> or <em>offset</em> or <em>buffer</em> or <em>sector</em>.</p>
  
  <p>I have created a Python application and few of the requirements have been met by external libraries (archival / extracting data) or binaries.  I would like to dive deeper now to get those third party library features into my application by writing a module of my own.  Now I would like to know what those terms mean and where I can get started.  Is there any documentation for the subject above?</p>
  
  <p>Any documentation relevant to those words on the Python programming language would also be appreciated.</p>