Yes, generally; the question isn't what the hardware is, the question is what OS the machine uses. If it runs Windows, a laptop isn't much different than a desktop machine.
There is no difference in functionality of laptop and desktop. you can do same work as you can does with your desktop
yesw
Yes
The same as you do on a desktop, running the same operating system and application.
The exact same way that you would install the same eMail on a desktop, running the same operating system as is on that laptop.
Yes you can! It works same as laptop and desktop computers...
Well for one you have to worry about battery life. Second, it is usually less powerful than a desktop. Screen is smaller. And if you had a laptop and a desktop that had the same specs, the laptop would cost more.
No, this will not work. Laptop video cards are designed for the laptop they are installed in. They are not removable from the laptop and do not have the same connections that a desktop has anyway.
It's a matter of choice. If you like flexibility laptop will be better for you. If you do not mind to have your computer at the same place desktop will work for you.
Same as a desktop it's just easier to travel with
The same way you do on a Windows 7 desktop.
Laptop hard drives are very similar to desktop hard drives, indeed they work in exactly the same way and even use the same interfaces. However laptop hard drives are designed to be much smaller (2 inches as opposed to 3.5) and draw less power than desktop hard drives. As a result laptop hard drives are usually much slower in terms of data transfer and have much smaller storage capacity than a desktop hard drive of the same year manufacture. With an adapter it is possible to use a laptop hard drive in a desktop computer, and if mounted externally it is also possible to use a desktop hard drive on a laptop.