The History of Computers

The term “laptop” is used to refer to a number of classes of small portable computers: Laptops were originally considered to be a small niche market and were thought suitable mostly for specialized field applications, but today, laptops are becoming more popular for student, business and general uses.

As the personal computer (PC) became feasible in the early 1970s, the idea of a portable personal computer followed.

IBM 5100, the first commercially available portable computer, appeared in 1975 as an 8-bit CPU machines, became widely accepted and the number of portables increased rapidly. Early portable computers weighed as much as 23.5 pounds (10.7kg) and had no battery.

The Epson had a LCD screen, a rechargeable battery and a calculator-size printer in a 1.6kg (3.5lb) chassis.

Both Tandy/Radio Shack and HP also produced portable computers of varying designs around the same time.

– A laptop computer which measures at least 11 inches across, which is the minimum width to allow for a full-size keyboard.

Net book: – A laptop computer which is less than 11 inches wide, which means it has less than a full-size keyboard and therefore also less display screen width when compared to a Notebook PC. They usually cost less, more lightweight, and have fewer features than a Notebook computer. The smaller than full-size keyboard can be more difficult to operate, especially if you have larger hands.

Ultra-thin Laptop:
Newer class of laptops which is very thin and lightweight.


The portability feature offers several distinct advantages. Laptop computers can be used in many locations. Laptop can be used in many places—not only at home and at the office, but also during commuting, on flights, in lecture halls and libraries, at clients’ location, during meeting, etc.

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