Desktop, keyboard, mouse and even the screen of a computer do not require computer repair at a specialized repair shop. Since mobile computers have everything built in, including the features mentioned above, it is actually more difficult to replace a computer keyboard or screen than desktop computers, which run on external connections.9. Unlike laptops, changing computers are usually not as susceptible to being stolen due to their bulk and weight. Mobile computers, on the other hand, are not large and portable. This, alone, makes them much more attractive to a thief than PC computers.10. In the event of illegal entry onto your property, computers are typically much less expensive than mobile computers. With laptops you pay more for ease of portability. For as little as $299.00, you can purchase desktop computers from one of the top manufacturers and a laptop for as little as $499.00.11. Computers are fixed of course. Unlike a laptop, which can simply be moved from room to room, they are more unlikely to break or fall as they are not moved as follows.