TECHNOLOGY


Some important words  separated by subtopics are:
Hardware: Computer, Keyboard. Mouse, printer, screen, button, key, cable or wire, CD Rom, DVD, Flash Memory…
Software: Operating system, program, database, text program, Word, Excel, Access, Power Point, Driver, interface…
Computer organization: File, Folder, data, window, …
Internet: Web, Word wide web, email, download, upload, network, net…
Actions:  click on, write, see, load, switch on/off…

EXCEL BASICS

When you launch Excel, the program opens to a blank document that looks like the one below. From this point, you can add data, change how it looks, have Excel perform mathematical calculations or summarize the data or find information in Excel's help files.
The image below shows the most important parts of the Excel workbook window. Note that it's possible that depending on the way your computer is configured, not every toolbar that you see below may look the same on your machine. You can select the toolbars to view by selecting View from the Menu Bar and then choosing "Toolbars."

The most basic part of an Excel document is the box that holds a piece of data, called a cell. A cell is the box represented by the intersection of a column and a row. Rows are identified by the numbers down the left side and columns are identified by letters across the top. Each cell is indicated by a cell reference. For example, in the image below the Active Cell at the intersection of Column A and Row 1 is given the cell reference of A1. (Like the battleship game)

The Excel Toolbars

Title Bar - The title bar displays the name of the program you are currently using and the name of the Excel workbook that is open. It appears at the top of all Windows programs. By default, Excel opens with Book 1.



Menu Bar - The menu bar is directly below the Title bar and displays a list of the menus that you can use to give commands to Excel. Clicking on a menu name displays a drop down menu of commands. You can move across the menu bar and down the drop-down menus with your mouse of by highlighting one of the menu items and using the arrow keys on your keyboard.


The menus found on the Menu Bar include the following:
  • File - File-related commands to open, save, close, print, and create new files.
  • Edit - Commands to copy, cut, past, find, and replace text.
  • View - Commands to change how the workbook is displayed on the screen.
  • Insert - Lists items that you can insert into a workbook, such as graphics and charts.
  • Format - Commands to format fonts, cell alignment, and borders.
  • Tools - Lists tools such as the spell checker and macros.
  • Data - Commands to analyze and work with data information.
  • Window - Commands to display and arrange multiple windows.
  • Help - Get help on using the Excel program
  • Adobe PDF - Options file menu if you have Adobe Acrobat installed.
Standard Toolbar - The Standard toolbar includes buttons that are shortcuts for the most commonly used commands. It contains buttons for the tools you use most frequently, such as saving, opening, and printing workbooks.


The tools found on the Standard Toolbar include the following:
  • New - Creates a new, blank spreadsheet
  • Open - Open a previously saved spreadsheet
  • Save – Save your current spread sheet
  • Permission - To restrict access to your spreadsheet
  • Print – Prints the current document
  • Print Preview - Preview the current spreadsheet to see how it will print
  • Spelling - Performs a spell check of cells in the current document
  • Research - Enables information rights management which can help protect sensitive documents from begin copied or forwarded.
  • Copy - Copies the current selection to the clipboard, which can then be pasted elsewhere in the document
  • Paste - Takes the current clipboard contents and insert them
  • Undo - Undoes the last action in the document
  • Redo - Redoes the last undone action
  • Insert Hyperlink - Inserts a hyperlink to an Internet Web location
  • Auto Sum - A drop-down menu of available mathematical operations to perform
  • Sort Ascending - Sorts the current selection in ascending order
  • Chart Wizard - Opens the "Chart Wizard," which will walk you through the creation of charts and diagrams using the selected data.
  • Other Options - There are a variety of other options you can call or add to the toolbar, such as Cut, Email, Sort Descending, etc. By clicking on the triangle at the far right side of the toolbar, you can access these options.
Formatting Toolbar - The Formatting toolbar contains buttons for the most commonly used formatting commands, such as making text bold or italicized.


The Formatting Toolbar includes commonly used buttons for formatting the information in cells. These include the following:
  • Font - Changes the font of the selected cells
  • Size - Changes the font size of the selection
  • Bold - Puts the selection in bold face
  • Italics - Puts the selection in Italics
  • Underline - Places an underline beneath the selection
  • Align Left - Aligns the current selection to the left
  • Align Right - Aligns the current selection to the right
  • Merge & Center - Combines two selected cells into one new cell that spans the width of both and center the contents of this new cell
  • Currency Style - Changes the style in which currency is displayed
  • Percent Style - Changes the style in which percents are displayed
  • Decrease Indent - Decrease the indent of a cell by approximately one character
  • Border - Adds or alters the style of borders around selected cells
  • Fill Color - Select a color to fill the background of a cell
  • Font Color - Select a color to apply to a selection of text
Task Pane - The Task pane lists commands that are relevant to whatever you're doing in Excel. You can easily hide the task pane if you want to have more room to work on aworkbook. Click the close button in the upper right corner of the Task pane. To open it again, choose View, Task pane.


Worksheet window- You can have multiple worksheets in an excel file. The worksheet window is where you actually enter data into the cells. Each worksheet contains columns and rows.
Worksheet Tabs - You can keep multiple worksheets together in a group called a workbook. For example you could have a separate worksheet for each month of the year in a workbook for the year 2007.
You can give worksheets your own meaningful names by placing your cursor over the sheet name and typing. There is also a floating menu when you click on it with the mouse right button.
By default, Excel opens with three worksheets.

ACTIVITY 3

Open an Excel new book.
Create a sheet with the name of every month of the year. You can select a number of sheets and copy them behind the last one using the menu that appears when you click on the sheet name.
Write a seasonal text in very sheet according to the month and change the background.
Save it in your folder of the flash memory with the names: 3 ESO A or B>Name of the people in the group> Excel1.

ACTIVITY 4

Put in the name of every topic in the boxes like the example.

Formatting Cells
The format of a cell controls how the cell looks, and also defines how the information (data) stored inside it will be treated and displayed.
There are numerous format options for changing the look of a cell, including borders and background colors. The appearance of the contents of a cell can also be altered, including different date formats, number formats, fonts, alignment and more. 
There are several ways to view/change the Format of a cell in Microsoft Excel:
  • Select the cell or cells to change, click Format on the menu bar and then clickcells 
excel menu bar screenshot

  • Right click on the cell/s and select Format from the menu that appears
  • Select the cell/s and then hold down the CTRL key and press 1
It is with this dialogue box that you can view and change the format of cells in your Microsoft Excel worksheets.

There are 6 tabs:
  • Number
  • Alignment
  • Font
  • Border
  • Patterns
  • Protection
In the tab Number we select the data type in the cells, within the following categories:
GENERAL: you can see in the cell exactly the value that you put on it.
NUMBER: you can change different parameters of a number: integer format, with decimals, thousand point, colors…
CURRENCY: you can see the number with the currency symbol €, $ … in the cell.
PERCENTAGE: you can see the numbers like percentages. Multiply the cells value by 100, assign the symbol %, and select the number of decimals positions you need. For example the number 0,1528 in percentage format without any decimal position will be 15%, and with 2 decimal position will be 15,28%.
DATES: Excel shows the date in different ways. The most common is DD/MM/YY. You need to know that Excel save the data as an integer number.

The Alignment tab of the Format Cells dialogue box allows you to control the alignment and orientation of the contents of a cell.

Wrap text - Allows you to wrap text in multiple lines with a cell. Wraps text into multiple lines in a cell.

Shrink to fit - Reduces the size of the font to whatever is necessary so that all the data fits into the cell.

Merge cells - Combines two or more selected cells into a single cell.



Relative and absolute references in Excel.

The most important Excel feature is the capability of making calculations with the data. That is what a Spreadsheet makes better. We can make calculations with formulas.
Every formula stars with a = symbol.
For making calculations with the numbers in cells we must refer at the cell like the battleship game. And we can do that in two ways:
·         Absolute reference: In example the data content at the cell A2 is referred as $A$2.We use that reference when I need a constant value in different calculations.
·         Relative reference: In example the data content at the cell A2 is referred as A2. We use that reference when I don’t need a constant value in calculations.


ACTIVITY 10

Open a new Excel book and introduce the following data:
a)      In C1 we write:    = A1+B1.   Then select the cells from C1 to C5 and go to EDIT>FILL> DOWN.
b)      In D1 we write:    = A1-B1.   Then select the cells from D1 to D5 and go to EDIT>FILL> DOWN.
c)       In E1 we write:    = A1*B1.   Then select the cells from E1 to E5 and go to EDIT>FILL> DOWN.
d)      F1 we write:    = A1/B1.   Then select the cells from F1 to F5 and go to EDIT>FILL> DOWN.
e)      In G1 we write:    = sum(A1:B5). 
f)       In G2 we write:    = (A1+B1)/2
g)      In G3 we write:    =average (a1;b1)
h)      In H1 we write: = $A$1+B2.   Then select the cells from H1 to H5 and go to EDIT>FILL> DOWN.


 TIP 
               We use : when we want to  select all the data between the two
cells that I write.
                                                       We use ; when we want to select exclusively the two data that I write.


Save it in your folders of the flash memory with the names: 3 ESO A or B>Name of the people in the group> Excel4.


Graphics/Charts

In excel we can make graphics with our data easily. There are different types that we can use as we need.
Column and row chart, pie chart, line graph… in 2D or 3D, we have multiple choices.
For make a chart we need to select first the data I need with the mouse. We can use the Excel3 file.
Open the Excel3 file and select the data of one of the people. Be sure to select all the data and titles that you want to be included in the graphic.
Then select the menu INSERT>CHART. And select the type of chart you need and follow the instructions to insert a column chart.


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