The command button is basically a shortcut to exiting out of programmes or doing other thing. For example, if your in safari and you click the word "Safari" to go to quit safari, you'll notice next to safari it will have a screwed up infinity sign and a Q. The command button will also have that strange infinity sign. This is a shortcut for quitting out of applications. Simply press command and Q simultaniously to quit out of applications. Look for these signs in all of your applications, for they are extremely useful.
Sitting on the left and right of the space bar.
There is no command button on your hp laptop. I guess you are refering to the command button on an iMac or MacBook? This button is only used by Apple. That's why Windows computers (such as your HP) don't have that button. The same button on your HP laptop will be the control (ctrl) button.
By pressing the power button on the back
Command > Shift 4 for a screenshot Command > Shift 3 for a predetermined screenshot. To take a photo with the iMac built in camera open Photo Booth in Applications.
Press Shift>Option>8
This trick only works with an iMac not a pc , depends what computer you have in hand. All you do on the Mac is press the command button and press the letter v at the same time :) hope this helps but remember you press the keyboards at the same time NOTE! : This only wokrs on the iMac
There is no Start button per se. Finder is the equilivant of Start on a Windows PC.
Turn it on by pushing the power button on the back left bottom of the iMac.
Yes, drag and shape it or click the green button.
Finder works just like the Start button on a Windows PC.
there is a little button you pull it up and it shows a green thingy[imac]
Click the + sign on the far right of the screen at the bottom of the toolbar.
If you are referring to restarting an iMac, you can choose one of the following options;Click on the Apple menu, and select the Restart optionTo force a restart, in the even that your iMac freezes, you can hold down Control+Both Command Keys, while holding down this combination press the power button, this will force a restart.If you are referring to restoring an iMac, you should do the below;You will need your Mac OS X install disk,Insert your install CD/DVD into the drive and restart your computer,While it is booting, hold down the 'D' key for it to run from the disc,Follow the on-screen prompts to do what you wish to do.