A Human Population Worksheet, in the word’s original impying, is a piece of paper on which one performs activity. They come in several kind shapes, most commonly connected with kid’s school work assignments, tax forms, or accounting or other business environments. Application is raisingly taking over the paper-based worksheet.
It can be a printed page that a kid finishes with a writing tool. No other materials are needed. It’s “a single paper on which schedules activity, working time, specific hints, etc. are noted. A scrap of paper on which problems, ideas, or the like, are write down in tentative form.” In school, a worksheet may have questions for students or places to write answers.
In accounting, a worksheet is, or was, a scrap of regulated paper with rows or columns on which an accountant could register information or do calculations. These are often named columnar pads, or typically green-tinted.
In IT, spreadsheet application presents, on a PC monitor, a UI that resembles one or more paper accounting worksheets. MS Excel, a popular spreadsheet software, refers to a single spreadsheet (more technically, a two-dimensional matrix or array) as a worksheet, or it bases on a collection of worksheets as a workbook.