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Design elements, form factor and construction can also vary significantly between models depending on intended use.Examples of specialized models of laptops include rugged notebooks for use in construction or military applications, as well as low production cost laptops such as those from the One Laptop per Child (OLPC) organization, which incorporate features like solar charging and semi-flexible components not found on most laptop computers.It weighed 12 kg and its dimensions were 45cm x 45cm x 15cm. Both Tandy/Radio Shack and Hewlett Packard (HP) also produced portable computers of varying designs during this period.The first laptops using the flip form factor appeared in the early 1980s.Most 2016-era laptops also have integrated webcams and built-in microphones. Laptops can be powered either from an internal battery or by an external power supply from an AC adapter.Hardware specifications, such as the processor speed and memory capacity, significantly vary between different types, makes, models and price points.A subnotebook or an ultraportable, is a laptop designed and marketed with an emphasis on portability (small size, low weight, and often longer battery life).
As portable computers evolved into the modern laptop, they became widely used for a variety of purposes.
It was based on an Intel 8085 processor, 8-bit, clocked at 2 MHZ.
It was equipped with a central 64K bite Ram, a keyboard with 58 alpha numeric keys and 11 numeric keys ( separate blocks ), a 32-character screen, a floppy disk : capacity = 140 000 characters, of a thermal printer : speed = 28 characters / second, an asynchronous channel, a synchronous channel, a 220V power supply. It had no battery, a 5 in (13 cm) cathode ray tube (CRT) screen, and dual 5.25 in (13.3 cm) single-density floppy drives.
Laptops are commonly used in a variety of settings, such as at work, in education, in playing games, Internet surfing, for personal multimedia and general home computer use.
A standard laptop combines the components, inputs, outputs, and capabilities of a desktop computer, including the display screen, small speakers, a keyboard, hard disk drive, optical disc drive pointing devices (such as a touchpad or trackpad), a processor, and memory into a single unit.
The term "notebook" appears to have gained currency somewhat later as manufacturers started producing even smaller portable devices, further reducing their weight and size and incorporating a display roughly the size of A4 paper; these were marketed as notebooks to distinguish them from bulkier laptops.