Notebook development history;
1.Rudiments
In 1979,the grid compass 1109 computer came out,which was the first attempt to make notebook computers in human history.This computer was designed by British William mogridge for grid in 1979.However,after the advent of this computer,the object-oriented computer is only in the aerospace field of the United States.It is the first portable computer in human history that is inspired by scallops.Ordinary people can't touch it.Grid compass 1109 computer 64KB memory,1.12mhz 11kg.
2.Birth
In 1985,the first notebook computer t1100 produced by Toshiba Corporation of Japan was officially launched.So far,this notebook computer is the first laptop recognized by most domestic media.That is,the advent of this notebook started Toshiba's 20 stormy journey in the notebook industry.
In September 1989,Apple launched the first notebook computer for users.It uses 68hc000 processor,which is a low-voltage version of Motorola 68000 and weighs about 4kg.Of course,because of its excellent performance,the price of this notebook is very high.
1991.。。。。。。
1992。。。。。。
1994．。。。。。。
In 1995,thinkpad760cd was launched.It is the first notebook computer in the world that supports multimedia functions and uses 12.1-inch SVGA high-resolution display.Supporting multimedia processing means that notebook computers are moving from pure commercial use to a broader diversified market.At this time,notebook computers,like PCs in those years,begin to move towards the general public.
Along the way,the notebook computer has been accompanied by human beings for more than 40 years,and has gradually become a necessity for people to work,study and live a happy life.With the continuous development,the notebook computer hardware and software have been greatly improved,and its functions,structures and applications have been diversified.
In recent years,with consumers'continuous pursuit of lightness and high appearance value,ultralight and ultra-thin notebooks have become the object of continuous layout by large power plants.Ultralight,ultra-thin and portable notebooks have become the development trend of notebooks.
Notebook computer is composed of different structural parts and internal components.In order to achieve lightweight,in addition to controlling the thickness and volume of internal components,the display shell and the body shell are also important ways to reduce weight.
In terms of the application and selection of shell materials,a large number of different materials have been tested.At present,the commonly used shell materials of light and thin notebook books are mainly aluminum alloy,magnesium alloy and carbon fiber composite materials.
In recent years,under the extreme pursuit of designers for lightness and thinness,aerospace grade raw materials,ultra light and high light magnesium lithium alloys,have also been gradually applied to light and thin notebooks,playing a great role in ultra light and ultra portable,and gaining unanimous recognition and favor from the market.

Aerospace grade raw material magnesium lithium alloy?
Magnesium lithium alloy is the lightest metal alloy material in the world.The reason why it is favored by designers and consumers is that it has the excellent performance of aluminum alloy,magnesium alloy,carbon fiber composite materials and other lightweight materials,and its comprehensive advantages are outstanding.The main points are as follows:[source:Official Website of Xi'an Sifang ultra light materials Co.,Ltd.]
1.Ultra light,the density of magnesium is not high,only 1.74g/cm³，Because of the addition of lithium,the density decreased to 1.34-1.64g/cm³，It is the metal alloy material with the lowest density at present.It is 40%-50%lighter than aluminum alloy and 20%-30%lighter than magnesium alloy,which can better achieve the weight reduction effect and meet the extreme pursuit of consumers for lightness and thinness.
2.Good thermal conductivity,thermal conductivity w/(m•K)(100℃)70-80,which can better achieve the heat dissipation effect and avoid the defects of poor heat dissipation of thin and light books.
3.Excellent anti vibration and noise reduction performance,large internal friction coefficient,able to consume energy in the metal,and effectively improve the stability of the product.
4.Excellent electromagnetic shielding performance,magnesium lithium alloy has a certain shielding effect on electromagnetic waves of different bands,and improves the safety of equipment.
5.Good processing and molding performance,with a variety of processing processes such as stamping,die casting,CNC,and rich surface treatment processes.Magnesium lithium alloy can be applied with anodizing,conductive oxidation,maintenance oxidation,spraying,electrophoresis,electroplating and other surface treatment processes to meet the requirements of designers and consumers for texture and color.
The notebook is made of magnesium lithium alloy and weighs about 860g.
Magnesium lithium alloy,with its unique advantages,lives in the large family of notebook computers and adds more help to the lightweight road.
Xi'an Sifang ultralight Materials Co.,Ltd.was officially established in the aviation base of Yanliang District,Xi'an City,Shaanxi Province in 2006.It focuses on the research and development of aerospace grade raw materials,ultralight and high-strength magnesium lithium alloys,filling the domestic gap of magnesium lithium alloys,and is responsible for drafting many national and national military standards for magnesium lithium alloys.