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Happy birthday, laptop! 35 years of the first commercially successful portable computer
My laptop weighs 1, 3 kg, has 16 GB of RAM and SSD 256 GB, 13, 3-inch display with a resolution of 3200 x 1800 and Intel Core i7 processor 2, 5 GHz.
It all began 35 years ago, the first commercially successful portable computer Osborne 1, which could boast processor Z80A 4 MHz, 64 kilobytes of RAM, a 5-inch display, two drives 5, 25 CDs and a mass of 11 kilograms.
April 3, 1981 presented the world computer Osborne 1, the first laptop, released in mass production. The device is available from 1981 to 1983. The laptop has a form factor suitcase. On one side of the body has a carrying handle, and the keyboard is made in the form of a hinged cover protects the screen diagonal of 5 inches. To the right and left of the display housed two floppy disk drives 5, 25 inches.
In fairness it should be noted that this was not the first laptop computer. IBM 5100 Portable PC came out in 1975, but it was positioned as a computer for scientists. It was built on a processor IBM 1, 9 MHz had a 5-inch display 64h18 characters, up to 64 kilobytes of RAM and storage on the basis of the tape volume of 200 KB. This machine cost from 8975 to 19975 dollars, so it could afford to buy any university or research laboratory, and far less likely to buy such a machine would be the average office clerk.
After another 4 years left Hewlett-Packard Model 85. Manufacturer and then use its own processor frequency of 613 kHz, RAM was between 8 and 64 KB to choose from, and the display will again have a diagonal of 5 inches. The price for this computer is started with 3250 dollars.
Osborne 1, on the contrary, in 1795 dollars worth. Very affordable price and an emphasis on "portable" computer made this popular and affordable. At the same time its design was inspired by the Xerox NoteTaker - a prototype made in the famous Xerox PARC lab.
Source: geektimes.ru/post/273842/
It all began 35 years ago, the first commercially successful portable computer Osborne 1, which could boast processor Z80A 4 MHz, 64 kilobytes of RAM, a 5-inch display, two drives 5, 25 CDs and a mass of 11 kilograms.
April 3, 1981 presented the world computer Osborne 1, the first laptop, released in mass production. The device is available from 1981 to 1983. The laptop has a form factor suitcase. On one side of the body has a carrying handle, and the keyboard is made in the form of a hinged cover protects the screen diagonal of 5 inches. To the right and left of the display housed two floppy disk drives 5, 25 inches.
In fairness it should be noted that this was not the first laptop computer. IBM 5100 Portable PC came out in 1975, but it was positioned as a computer for scientists. It was built on a processor IBM 1, 9 MHz had a 5-inch display 64h18 characters, up to 64 kilobytes of RAM and storage on the basis of the tape volume of 200 KB. This machine cost from 8975 to 19975 dollars, so it could afford to buy any university or research laboratory, and far less likely to buy such a machine would be the average office clerk.
After another 4 years left Hewlett-Packard Model 85. Manufacturer and then use its own processor frequency of 613 kHz, RAM was between 8 and 64 KB to choose from, and the display will again have a diagonal of 5 inches. The price for this computer is started with 3250 dollars.
Osborne 1, on the contrary, in 1795 dollars worth. Very affordable price and an emphasis on "portable" computer made this popular and affordable. At the same time its design was inspired by the Xerox NoteTaker - a prototype made in the famous Xerox PARC lab.
Source: geektimes.ru/post/273842/
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