Absolute References. An absolute reference does not change when you move or copy a cell. We use the $ sign to make an absolute reference â to remember that, think of a dollar sign as an anchor. For example, enter the formula =$A$1 in any cell.bsolute References. An absolute reference does not change when you move or copy a cell. We use the $ sign to make an absolute reference â to remember that, think of a dollar sign as an anchor. For example, enter the formula =$A$1 in any cell.
Cross Platform Component Object Model (XPCOM) is a cross-platform component model from Mozilla. It is similar to Microsoft Component Object Model (COM) and Common Object Request Broker Architecture (CORBA).
XP (Extreme Programming) is a more radical agile methodology, focusing more on the software engineering process and addressing the analysis, development and test phases with novel approaches that make a substantial difference to the quality of the end product.