You can change the lock screen to anything in Settings. To change the way the lock button works, you will have to jailbreak your iPad and void your warranty.
The iPad does not have a Background Colour. You can choose a Photo for your iPad Home Screen and Lock Screen!
No
There is a lock screen which has a slide lock at the bottom. This will give way to a passcode entry, if one is set.
The home screen and lock screen can be set to any picture in your Pictures library. Change them in the settings menu.
The iPad itself is just a tablet, you don't 'open' it, although it may be in a case or cover that hinges open. Press the Home Button, and the lock screen pops up. Slide your finger across the Slide to Unlock area, and it will go to the home screen. If it asks for a Passcode, enter the 4-digit lock code to open it. If you don't know what the lock code is, you'll need to ask the person who owns the iPad.
If you are speaking of orientation lock, the mute/orientation slider on the right hand side next to the volume control will lock/unlock the screen orientation.
You don't need an app for that. In settings, you can set a Passcode, a 4-number code needed to open the iPad. You can also set the auto lock time, so that the iPad will lock automatically after a period of inactivity. You can also purchase a polarized privacy screen protector that will limit the angle that you can view the screen at, so someone sitting next to you (such as on a bus or plane) can't see your screen.
The iPad is a touch screen device, so most of the controls involve touching the screen itself. The iPad also has a physical home button which you can press to go to the device's home page - and a lock button which puts the device in sleep mode. There are also volume controls on the side of the device.
Go to settings then background and wallpaper, select which of your saved or taken photos you wish to have, then tap lock screen, home screen, or both. Hope this helped. :)
How do I make pictures look larger on the iOS 7.1 on incoming calls
ask some one who can jail break it
No. an iPad is a 9.5" screen. An iPod Touch is a 3.5" screen.