1. Chapter 11 Working with Spreadsheets

2. Practical PC 5th Edition Chapter 11
Getting Started
In this Chapter, you will learn:
What’s a spreadsheet
How to create a worksheet
How to find the right formula
How to know if worksheet results are accurate
How to create graphs
About Hardware: Ergonomic workstations and devices
Practical PC 5th Edition Chapter 11

3. Practical PC 5th 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 5th Edition Chapter 11

4. Practical PC 5th Edition Chapter 11
What’s a spreadsheet?
Worksheet
Practical PC 5th Edition Chapter 11

5. How do I create a worksheet?
To create a worksheet
Begin by typing a title and labels
Then enter the numbers
Finally, enter formulas
Formulas specify how to use calculations with the numbers in the 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 5th Edition Chapter 11

6. 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 if 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 5th Edition Chapter 11

7. What if I don’t know the right formula?
Function
Practical PC 5th Edition Chapter 11

8. How do I know whether worksheet results are accurate?
The worksheet author is responsible for its accuracy
Test and verify the results using a hand calculator
Common errors
Typing errors or incorrect cell input
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 5th Edition Chapter 11

9. Practical PC 5th 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 line, pie, area, bar, column, and scatter
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 5th Edition Chapter 11

10. Practical PC 5th Edition Chapter 11
How do I create graphs?
Creating Graphs
Practical PC 5th Edition Chapter 11

11. Hardware: Ergonomic workstations and devices
A repetitive stress injury (RSI) is a group of overuse disorders
Symptoms include stiffness and minor pain
Caused by set up of computer equipment
Slouching forward can cause nerve damage
Key to comfort is:
Keeping shoulders relaxed
Lean upper torso back slightly to rest on chair
Practical PC 5th Edition Chapter 11

12. Hardware: Ergonomic workstations and devices
Computer use can cause eye problems
Monitor should be arm length away and tilted back slightly
Your screen should be directly in front of you
Raising chin to see through trifocal or bifocal lenses can cause pain and stress
Minimize glare of lights or windows
Practical PC 5th Edition Chapter 11

13. Hardware: Ergonomic workstations and devices
Ergonomics is the study of safe and efficient environments
Sturdy desk with enough space for keyboard and mouse
Adjustable chair is essential
Some experts recommend raising the front of the keyboard about one inch
When possible use an external keyboard and mouse with your notebook computer for ergonomic positioning
Practical PC 5th Edition Chapter 11

14. Hardware: Ergonomic workstations and devices
Workstation Ergonomics
Practical PC 5th Edition Chapter 11

15. 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 mistakes 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 5th Edition Chapter 11

16. Practical PC 5th Edition Chapter 11
Chapter Summary
You should now be able to:
Understand what is a spreadsheet
Create a worksheet
Find the right formula
Check to see if worksheet results are accurate
Create graphs
Understand ergonomic workstations and devices
Practical PC 5th Edition Chapter 11