A formula.
It is possible to do a simple calculation in a query without having any fields in it, but generally the whole point of queries is to work with data from tables, so there would be fields in them. If you wanted to do a calculation that did not involve any fields, then there would be no reason to use a database. You could use a spreadsheet or a calculator.
A spreadsheet (like Excel).
If one calculation goes wrong, then the whole spreadsheet will go wrong.
function
It can be called a formula.
Calculation
PDF file
The real power behind a spreadsheet's ability to calculate is derived from formulas. Spreadsheet programs like Microsoft Excel are capable of handling hundreds of formula.
No. An instruction set is all the instructions that direct a computer.
In Microsoft Excel, there are two calculation methods. Usually it is set to Auto Calculate, which means that every time a cell is changed, it goes through and recalculates every formula in the spreadsheet. If you have a very large spreadsheet, this can slow things down, especially if you have several cells to make changes to. If you change the settings to Manual Calculation, then you can make all of your changes, then tell it to recalculate the spreadsheet.
this is called a central processing unit
It should have three.