Showing posts with label History. Show all posts
Showing posts with label History. Show all posts

Tuesday, September 13, 2011

History of Laptops

When it comes to computers and technology, there seems no limit to the possibilities. Computers were once large and expensive equipment, but now, thanks to the digital revolution, almost all households have computers, especially laptops small and light. This story of laptops is a fascinating story about the development of technology.

The concept of a laptop was born in late 1960 and early 1970s. During this period, Xerox researchers have experimented with a type of laptop, called the Dynabook. The intent of the Dynabook was some sort of Tablet PC that could run on battery life. However, the technology had not yet developed in this period, to develop the Dynabook.

In 1981, the Osborne-1 system has been developed for commercial purposes. This computer has a very small screen, but could not run on battery power. The Osborne-1 system gave companies the opportunity first, to take their data with them, which included bringing in aircraft. However, since they do not with the battery, which does not prevent him run a success.

The first true laptop was introduced in 1982. This could work in the life of the battery and includes a flat screen that folded into the keyboard. It also has a clamshell design. He was known as the GRID Compass. His design is still used today in many laptops. However, the high cost and incompatibility with IBM unattractive in the commercial market. It is used primarily by NASA and the U.S. military.

In 1983, two laptops were introduced - the Epson HX-20 and Compaq. He presented the most viable technological progress for the economy. The system was the first Compaq laptop with the operating system MS-DOS and IBM software. The Epson HX-20 was a reasonable price and can be run on rechargeable batteries.
At the end of 1983, Kyocera was solved Kyotronic 85th This notebook was originally published in Japan on the market, but suffered poor sales. However, the developers have U.S. marketing team has started in the U.S. and had sales of more success. The laptop has an internal modem and a number of programs that were developed by Microsoft. So we could run on ordinary AA batteries.

In 1986 and 1987, two IBM-compatible laptop pretty good success. Made by IBM and Toshiba, which had a limited ability to function, but it could lead to batteries, light, and had a pause function that the user gave the ability to take up work again without rebooting.

In 1987, many notebook manufacturers have shown in the market and the competition among manufacturers of mobile phones has increased dramatically. Buy a contract for the United States Air Force to 200,000 laptops were offered and equipment manufacturers participated intensively for it. Zenith Data Systems (ZDS) was awarded the contract and became the largest manufacturer of laptops in late 1980.
ZDS partnered with a Japanese manufacturer of equipment for the production of laptops to stimulate. In addition, these companies form alliances with Taiwan and began to become leaders in the notebook market. In 1989 Apple Inc. launched its first notebook, laptop Macintosh. The team had a long battery life, screen blank, but there was expensive and bulky. Apple PowerBook 1991 series has a technology in the NIC, the placement of the keyboard that we see today and touchpad built.

In 1995, Microsoft released Windows 95 operating system. The development of Windows-95 standard in most areas of the design of the laptop. It was also during this time as the Intel Pentium, CD-ROM drives have been standard features of most laptops functions. Technological developments since 1995 have continuously improved portable always the popular choice of the computer system is now used by millions of people around the world

History of hard disk

The hard drive is an important part of computing today, allowing information to be stored and retrieved at a future date. However, the unit now has its roots in the technology that was developed 50 years ago. The first unit was developed in 1956 and looked like they would look like an air conditioner today. Yesterday units had a very small storage capacity, but it took 100 times more space. Since the technology, the capacity of hard drives has developed so long as it took up less space and less.

The first days

The first idea, a memory unit and receiving of data is developed in 1953 by IBM engineers. They recognized the need for a device that a high capacity, can have fast access to data, and is cheap to build. The technologies are considered the first signs of wire, rod arrays and matrices, including the drum. However, the reader was finally resolved when the device of choice because its simple mechanical design and easy. The first drive was the IBM 305 RAMAC, which can store 4.4 megabytes at a price of $ 160 000 in today's money.

1950-1970

The IBM 350 Disk File was a huge success for IBM and the age of the hard drive is officially born. However, the first performance of this device ridiculous compared to what the less expensive devices can achieve today. The IBM 350 Disk File succeeded in information access in less than 1 second - compared to almost all hard drives, which can now access information in a few milliseconds. However, access times and went quickly in 1961, much of the 4000 series drives are able to time of only 50 ms access time. In 1973, IBM introduced the IBM 3340 hard disk. This was the first hard disk, the media smeared the low to ensure a smooth operation and less maintenance was used.

The era of personal computers

When the PC revolution began in the 1980s, was the primary means of storing and retrieving data into a computer via floppy disks. Therefore, the majority of PCs do not have a hard disk because they were too expensive to manufacture and not with the disk in terms of competition, mere storage. However, the 1980s began to the discs as the main method of storage to replace PCs. Occur in the mid-1990s almost all PCs with some kind of internal unity, and are now much cheaper than hard drives in terms of the amount of memory space.

Present

After the disk has become a fixture in the industry of personal computing in the 1990s, further, faster, smaller and larger capacities. Hard drives are currently very cheap and can produce large amounts of information, save the part of the order of 5 terabytes of data. The future of mobile is not clear, but most experts agree that it is removed and with the condition, the most technologically advanced sound equipment is to be replaced. A Solid State Drive has no moving parts and thus get a longer life and easier compared to a conventional hard disk.