1. Chapter 11 Working with Spreadsheets

2. Practical PC 6th Edition Chapter 11
Getting Started
FAQs:
What’s a spreadsheet?
How do I create a worksheet?
What if I don’t know the right formula?
How do I know whether worksheet results are accurate?
How do I create graphs?
Practical PC 6th Edition Chapter 11

3. Practical PC 6th Edition Chapter 11
What’s a spreadsheet?
A spreadsheet is a tool for working with numbers
Arranged in a grid of columns and rows forming cells
Cells hold labels, numbers, and formulas
Spreadsheet software allows you to create electronic spreadsheets
Easy to edit, print, save, and post on Web
Often referred to as a worksheet
Formulas are used to perform calculations
You can use the worksheet to examine “what-if” scenarios
Practical PC 6th Edition Chapter 11

4. Practical PC 6th Edition Chapter 11
What’s a spreadsheet?
Practical PC 6th Edition Chapter 11

5. How do I create a worksheet?
To create a worksheet:
Begin by entering a title and labels
Then enter the numbers, or values
Finally, enter formulas
Formulas specify how to calculate worksheet cells
A cell reference is the column and row location of a cell, such as B2
You can format your worksheet to make it more attractive with different fonts, cell colors, and data alignment
Practical PC 6th Edition Chapter 11

6. How do I create a worksheet?
Practical PC 6th Edition Chapter 11

7. What if I don’t know the right formula?
Spreadsheet software includes built-in functions
Functions are predefined formulas
Handy functions include AVERAGE and SUM
To use a function, select it from the function list and select the cells that contain arguments
An argument is a value or cell reference that a function uses as a basis for a calculation
Practical PC 6th Edition Chapter 11

8. What if I don’t know the right formula?
Practical PC 6th Edition Chapter 11

9. How do I know whether worksheet results are accurate?
The worksheet author is responsible for its accuracy
Test and verify the results using a handheld calculator
Common errors:
Typographical error
Incorrect formula
Order for the calculations in a formula is wrong
Cell range specified is incorrect
Wrong cells are specified as arguments in a function
Practical PC 6th Edition Chapter 11

10. How do I know whether worksheet results are accurate?
Practical PC 6th Edition Chapter 11

11. Practical PC 6th Edition Chapter 11
How do I create graphs?
A graph is based on the data in a worksheet
Graphs automatically reflect the change you make in the worksheet
Data is contained in ranges, which are a series of cells
You can create many types of graphs including bar, line, pie, column, scatter, area, doughnut, and high-low-close
Creating a chart:
Plan your chart by identifying your data and chart type
Activate the Chart Wizard for step-by-step directions
Use menu options to change the chart’s appearance
Practical PC 6th Edition Chapter 11

12. Practical PC 6th Edition Chapter 11
How do I create graphs?
Practical PC 6th Edition Chapter 11

13. Hardware: Display devices
A computer display device is usually classified as an output device
An LCD (liquid crystal display) produces on-screen images by manipulating light within a layer of liquid crystal cells
Compact in size and lightweight
LED (light emitting diode) technology is used commonly as backlighting for LCD panels
Also can be used to form screen images
Practical PC 6th Edition Chapter 11

14. Hardware: Display devices
Practical PC 6th Edition Chapter 11

15. Hardware: Display devices
A graphics card typically contains a graphics processing unit, which executes graphics commands
Monitors connect to computers using VGA, DVI, or HDMI ports
Practical PC 6th Edition Chapter 11

16. Hardware: Display devices
Each dot of light on a computer screen is called a pixel
The number of pixels is referred to as screen resolution
Practical PC 6th Edition Chapter 11

17. Hardware: Display devices
Ergonomics is the science of configuring jobs, equipment, and workplaces with regard to worker health and safety
Check the following factors that contribute to ergonomic viewing:
Brightness and contrast
Viewing angle
Response time
Practical PC 6th Edition Chapter 11

18. Hardware: Display devices
Practical PC 6th Edition Chapter 11

19. Who’s to blame for faulty software?
What do you think?
Do you usually read the EULA that’s supplied with your software?
Should software publishers be held responsible for errors that result from errors, or bugs, in the software code?
Should software publishers be held responsible if user errors result in business or personal losses?
Practical PC 6th Edition Chapter 11