When you first open a Microsoft Word document, the first line of text in the document is pre-filled in as the document's file name. You can also change the filename of the document, by typing in a new one. But if you don't type a new one, then the filename will remain as the first line of your document.
Any electronic system that uses a computer chip, but that is not a general-purpose workstation, desktop or laptop computer. Such systems use microcontrollers (MCUs) or microprocessors (MPUs), or they may use custom-designed chips.
