More than 12,000 local police departments were operating in the United States during 2013. A local police department is a general purpose law enforcement agency, other than a sheriffs office, that is operated by a unit of local government, such as a town, city, township, or county.
SaveAs :- Is used to save an already saved document or anything (which you want to save) with a new name. In simple words with Save you save something with SaveAs you create a copy of already saved thing with a new name obviously. I hope you understood the main basic difference. TC.
If you use Microsoft Word (or a similar word processor), you probably know well enough how to save a document. You click Save, choose a folder, give the document a name, and then click Save, OK, or whatever. What you may not know is how to choose a different format for that document, or why you'd want to. By default, Microsoft Word uses its own, proprietary document format. In the old days, that was the Doc format, but as of Word 2007 (and continuining with Word 2010), it's Docx.