What is A Laptop

What is A Laptop

What is A Laptop?

A laptop or a Laptop PC is a portable personal computer which, thanks to a light weight design and a device that occupies a limited space, can be transported easily which was not possible with a personal desktop computer.

History of Laptop

One of the first laptops was developed in 1982

The first laptop was created by Adam Osborne in 1981, USA, and its first portable model was called the Osborne I. It weighed about 11 kg and has a 64 KB RAM with subsystem CP/M 8 bits.

Supplied without the hard disk, it was equipped with two floppy drives that were flexible format 5 “1 / 4 with a capacity of less than 80 kb., and had a screen that measured 5” diagonal (displaying green on black background).

It was designed to place it under the passenger seat on the plane to avoid storing it in the baggage compartment. It came with a set of standard office programs for use in a professional setting. It could be equipped with a 12 volt battery, making it more autonomous.

Its rival was the Kaypro, which was much more rustic in its making and it looked rather like it was meant as a laboratory machine, but it was equipped with a screen size of 9″ in diagonal measurement, had increased drive capacity, and often had a hard disk.

Beginning in 1985 with the arrival of Toshiba Papman, people begin to easily use the portable laptop. It meant that the machine was also equipped with a battery and could be used anywhere. The Papman was the first “true” portable PC.

Carried by the wave of netBook (with standard 10-inch screen), sales of notebooks have for the first time in the 3rd quarter of 2008 exceeded those of desktop computers.

A laptop includes:

* CPU with motherboard, memory, RAM;
* Floppy drive (less delivered from 2000);
* Hard drive for several years (the use of flash memory becomes possible, thus saving energy and a read access faster for small files);
* Flat screen (the first were fitted with CRT small diagonal);
* Keyboard (reduced, without a separate numeric keypad);
* Different standard connectors to complete their equipment externally (network, USB, etc …)
* Tablet (touchpad) replacing the mouse and its buttons.
* More and more often a Wi-Fi Connection and / or Bluetooth

The laptops are more expensive than desktop PCs (due to miniaturization and lack of mass production of components), and are slower (because it must not generate too much heat and avoid consuming too much energy for a better battery life).

To meet these two requirements, they are equipped with a processor “gook” and a small hard disk space (in 2007, it was 2-½).

Processors of a laptop are specially designed to manage energy consumption. The main problem on a laptop is the low-availability power output of its battery (few hours).

There are other types of laptops:

* Transport: heavier (between 4 and 7 kg), they carry more powerful components such as a hard disk 3 “½, a 3D graphics card and a screen larger
* Ultraportables: much lighter (between 1 and 2 kg), or even smaller, they maintain very good performance but are more expensive
* NetBook: Ultraportables new category of similar size, they are slower (which saves battery), less vulnerable to shocks and sold at a price significantly lower
* Tablet PC (or tablet PC): ultraportable computer equipped with a touchscreen
* Electronic book (or Livrel).

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