g. Give examples of situations where undo and redo commands
can be used.
Answers
Answer:
How to undo and redo?
Okay, you want to take a step back or two, you can easily do that using an undo command. But the key point to take a note is that this is entirely controlled by the software on which you are trying to apply the undo commands.
Some of them allow multiple undo’s while some of them allow a single one. For example, MS paint allows a single undo while in Adobe Illustrator you can perform multiple undo operations.
So, in this section, we will see how to undo and redo in some of the major softwares.
We will first go to MS office. How to undo and redo in MS office? So, let’s get started:
Step #1: First of all, you are required to open MS Word on your system. We are taking MS Word for illustration purposes; you can go with any of its products. Once you have opened MS Word, then you now need to move on to the next steps for further proceedings.
Step #2: Perform any action to an existing Word document or a blank document. After that, if you wish to undo your operation then press “CTRL + z.” This will revert your changes.
Additionally, if you want to redo an action then you are required to press “CTRL + y.” This way you can quickly perform the redo operation in Word.
Alternatively, in previous versions of MS Office, you may find the edit option from which you can also perform the same task by clicking on the undo and redo options.
Let’s see how it can be done in MS paint.
Step #1: First of all, you will have to launch MS Paint on your system. Once you have done that, open the desired image file, or you can even create something of your own.
Step #2: Oh, you made a mistake and wanted to undo the action. Press “CTRL + Z” to get back a step back. If you want the redo the step then just press “CTRL + Y” to get the needful results.
Moving on, we will see how to redo and undo in Adobe Photoshop. So, let’s get started:
Step #1: Open Adobe Photoshop on your system. Once launched, you are now required to open any existing project on which you want to perform these actions.
Step #2: Now, if you want to undo or redo your steps, you have two options, either you can go with the usual “CTRL + Z” keyboard shortcut which will get you exactly one step back, or you can go to edit option and then select the appropriate option from there.
Alternatively, to undo your steps, you can also go to the history section of Photoshop from where you can also see what steps you have gone through till now.
To go to history, you need to click on the Window option from the top navigation menu and locate the history option.
Once found, you need to click on it. This may open a history panel from the right side from where you have a look at your steps.
Now, if you wish you can select the desired steps that you want to undo and then delete them by clicking on the dustbin like icon as shown.
This will produce the same output as the undo command, but the difference is that you can revert as many steps as available.
To say the least, CTRL + Z and CTRL + Y are the undo and redo global actions for any Windows program. So, what if we want to perform the redo and undo operations on a Mac? If you are thinking about the same, then the following section is a must visit for you.
In Mac operating system, the alternative for CTRL + Z is “Command + Z” and for the redo operation the alternative is “Command + Shift + Z.” The Command key in Mac is equivalent to the CTRL command in Windows.
Also take a note that not every action your perform can be redone and undone. So, if these keys don’t work in some cases, then you might have performed those actions.
Explanation: