A laptop is a portable, folding personal computer that has its own battery life, that is, it is temporarily independent of power supply; a composition of integrated components and input and output devices and is rightfully considered a portable and mobile device.
Advantages and disadvantages of laptops over desktops:
Light weight and dimensions. Laptops can be easily moved to another location. You can take him on a business trip, to the country, on vacation. Moving a desktop computer to another room / office is often a challenge, let alone moving to another city.
It is not necessary to connect external devices for operation. A laptop includes a built-in display, keyboard, and pointing device (usually a touchpad), and all must be connected separately to the desktop computer.
The possibility of autonomous work. The presence of the battery allows the laptop to work in conditions when the electrical network is not available (on a train, plane, car, cafe and just on the street). A desktop computer can work autonomously for a very short time, and only if an uninterruptible power supply is available.
Ability to connect to wireless networks. Almost all modern laptops (with the exception of some ultra-budget models) are equipped with a built-in Wi-Fi adapter, which allows you to connect to the Internet without wires. There are Wi-Fi access points in many cafes, entertainment centers, airports, hotels. There are also city Wi-Fi networks that allow you to connect to a wireless network in many areas of the city. Desktop computers usually do not contain a built-in Wi-Fi adapter (with the exception of some expensive models), however, this disadvantage is insignificant for stationary computers.
In sum, all the advantages of laptops over stationary computers make up the main quality of laptops – mobility.