Answer:
Unix
Explanation:
UNIX is simply an operating system developed by Bell Laboratories in the 1960s. Ever since then, it has been constantly worked upon and developed. It is an operating system because it is a suite of programs capable of making a computer to function. Unix is considered to be a stable, multi-user, and multi-tasking system for both desktops and laptops and even servers.
$21.08 is an example of a currency Number format in Excel
<u>Explanation:</u>
For items like currency, one can format numbers in cells in Excel.
To view all possible number formats, click the Dialog Box Launcher attached to Number on the Home tab in the Number group.
In the Format Cells dialog box, in the Category list, click Currency or Accounting.
In the Symbol box, tick the currency symbol.
In the Decimal places box, insert the number of decimal places.
Employed for common financial values and presents the default currency figure with quantities.
Ctrl+Shift+$ is a shortcut to represent currency values.