A desktop is the classic form of the computer, as it is big, generally sits on the top of a desk, and you may also call it a home computer. The most common part of the desktop is the computer terminal, which is powered by a grounded electrical source. The computer comes with all separate equipment, so it is not easily portable. The parts include an external monitor, keyboard, and mouse through Bluetooth or Wi-Fi.
A laptop, on the other hand, is quite compact and convenient. It is an all in one computer where all the parts are already connected. These parts include a monitor, keyboard, and typically a touchpad or trackball. It does, however, require battery power, so if you leave the house with it, remember to bring the cord. The laptop may be used as a fully functioning unit without any connected device or power.