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2. Laptop - Wikipedia

   en.wikipedia.org/wiki/Laptop

   This restriction is one of the major differences between laptops and desktop computers, because the large "tower" cases used in desktop computers are designed so that new motherboards, hard disks, sound cards, RAM, and other components can be added. Memory and storage can often be upgraded with some disassembly, but with the most compact ...

3. Personal computer - Wikipedia

   en.wikipedia.org/wiki/Personal_computer

   An MSI laptop computer. A laptop computer is designed for portability with clamshell design, where the keyboard and computer components are on one panel, with a hinged second panel containing a flat display screen. Closing the laptop protects the screen and keyboard during transportation. Laptops generally have a rechargeable battery, enhancing ...

4. Classes of computers - Wikipedia

   en.wikipedia.org/wiki/Classes_of_computers

   Third generation computers (1964-1970): It used Integrated Circuits (ICs), the main difference between hardware in computers of the 1960s and today being the density of transistors in each IC (beginning with Small Scale Integration chips like the Transistor-transistor logic (TTL) SN7400 gates with 20 transistors, through Medium Scale ...

5. Notebook (laptop) - Wikipedia

   en.wikipedia.org/wiki/Notebook_(laptop)

   A notebook computer or notebook is, historically, a laptop whose length and width approximate that of letter paper (8.5 by 11 inches or 220 by 280 millimetres). [ a ] The term notebook was coined to describe slab-like portable computers that had a letter-paper footprint, such as Epson 's HX-20 and Tandy 's TRS-80 Model 100 of the early 1980s.

6. Desktop computer - Wikipedia

   en.wikipedia.org/wiki/Desktop_computer

   Desktop computers also provide more space for cooling fans and vents to dissipate heat, allowing enthusiasts to overclock with less risk. The two large microprocessor manufacturers, Intel and AMD, have developed special CPUs for mobile computers (i.e. laptops) that consume less power and lower heat, but with lower performance levels.

7. Form factor (design) - Wikipedia

   en.wikipedia.org/wiki/Form_factor_(design)

   Laptop or notebook, a form of portable computer with a clamshell design. Subnotebook, ultra-mobile PC, netbook, and tablet computer, various form factors for devices that are smaller and often cheaper than a typical notebook. Mobile phone, including a wide range of sizes and layouts.