Questions about information technology

1. In EXCEL, line numbers are represented by (numbers) and column labels by (this is not clear, it may be a function). 2 The default file type created in EXCEL is (. Xls), also known as (workbook), can contain multiple (worksheets) for storing and processing various data in daily work. 3. Line chart can better reflect the trend of things. The so-called "data table" is a table composed of (worksheets). The header column in the table is also called (data), and the column name is also called (workbook). 5 Drag the fill handle in the lower right corner of the cell to automatically fill in the contents of subsequent cells. 6(SUM(A2:A4))*2 means (SUM(A2:A4))* The sum of the values in cells A2 to A4 is multiplied by 2 sum: and A2: the coordinates of the cells) 7 The software responsible for managing the hardware and software resources of the computer and providing people with an operating computer interface is (operating system). 8. Common menus include start menu, control menu, shortcut menu and (popup) menu. 9. Arrange windows in three ways: stacked windows, vertically tiled windows and horizontally tiled windows. 10. Installing new software generally includes two steps: first, connect the added (hardware) with your own computer, and then install (driver), 1 1. The sequence name of the installer is generally (SETUP. EXE) 12。 Adding or removing programs in WINDOWS can be found in the Control Page. 14. Press (. [Alt]) key to activate the menu bar, and then type an underlined letter after the menu name to activate the corresponding drop-down menu. This is my own answer, maybe the answer is wrong, but I tried my best, hehe, I hope I can help LZ!