Chapter 11 Working with Spreadsheets

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

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

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

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

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

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

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

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

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

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

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

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

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

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