Free Laptop Get

Nowadays, people are moderately high-dependent in the idea of ease mobility. With the need of technology, especially the help from personal computer (also known as PC), people currently need another form of PC that can be easily brought everywhere mobile.

As the personal computer became feasible in the early 1970s, the idea of a portable PC followed. In particular, a “personal, portable information manipulator” was imagined by Alan Kay at Xerox PARC in 1968 and described in his 1972 paper as the “Dynabook”.

The I.B.M. SCAMP project (Special Computer APL Machine Portable) was demonstrated in 1973. This prototype was based on the PALM processor (Put All Logic in Microcode). The I.B.M. 5100, the first commercially available portable computer, appeared in September 1975, and was based on the SCAMP prototype.



As 8-bit CPU machines became widely accepted, the number of portables increased rapidly. The Osborne 1 used the Zilog Z80, weighed 23.5 pounds (10.7 kg). It had no battery, only a tiny 5" CRT screen and dual 5¼" single-density floppy drives. In the same year the first laptop-sized portable computer, the Epson HX-20, was announced. The Epson had a LCD screen, a rechargeable battery and a calculator-size printer in a 1.6 kg (4 pounds) chassis. Both Tandy/Radio Shack and HP also produced portable computers of varying designs during this period.



The first laptop using the clamshell design, used today by almost all laptops, appeared in April 1982 and was developed by Bill Moggridge. The USD $8150 GRiD Compass 1100 was used at NASA and by the military among others. The Gavilan SC, released in 1983, was the first notebook marketed using the term "laptop".



From 1983 onwards:
• Several new input techniques were developed and included in laptops: the touchpad (Gavilan SC, 1983), the pointing stick (IBM ThinkPad 700, 1992) and handwriting recognition (Linus Write-Top, 1987).
• Some CPUs were designed specifically for low power use (including laptops (Intel i386SL, 1990), and were supported by dynamic power management features (Intel SpeedStep and AMD PowerNow!) in some designs.
• Displays reached VGA resolution by 1988 (Compaq SLT 286) and 256-color screens by 1993 (PowerBook 165c), progressing quickly to millions of colors and high resolutions.
• High-capacity hard drives and optical storage (CD-ROM followed CD-R and CD-RW and eventually by DVD-ROM and the writable varieties) became available in laptops soon after their introduction to the desktops.
• Early laptops often had proprietary and incompatible system architectures, operating systems, and bundled applications, making third party hardware and software difficult and sometimes impossible to develop.

With the recent updates in the computer technology, the features of laptop are so possible to be developed. Take a look at laptops these days. How many features you’ve used maximally, compared to your usage of PC? Did you choose laptop because of its portability? Did you choose laptop because of its weight? Or did you choose laptop because of its prestige?


Source: Wikipedia
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