segunda-feira, 4 de abril de 2011
Computer Revolution (S.O).
The first computers of the 1940s had only two levels of programming language: the level of machine language, in which all programming was done, and the level of digital logic, where the programs were effectively implemented.
Computer (1940)
With Wilkes in 1951, the idea of designing a computer at three levels, in order to simplify the hardware. This machine had a program called interpreter stored permanently, whose function was to run the programs into machine language.
Computer (1961)
The hardware could be simplified thus: would just run a small set of microinstructions stored instead of the entire program into machine language, requiring fewer electronic circuits. From then begin to evolve the languages and the architectures of the machines, driven mainly by the emergence of a new concept in the History of Computing: Operating Systems.
Computer (Current)
Computer (1940)
With Wilkes in 1951, the idea of designing a computer at three levels, in order to simplify the hardware. This machine had a program called interpreter stored permanently, whose function was to run the programs into machine language.
Computer (1961)
The hardware could be simplified thus: would just run a small set of microinstructions stored instead of the entire program into machine language, requiring fewer electronic circuits. From then begin to evolve the languages and the architectures of the machines, driven mainly by the emergence of a new concept in the History of Computing: Operating Systems.
Computer (Current)
Revolução do Computador (S.O).(Parte 2)
The second generation (1956 - 1963) was driven by the invention of the transistor (1948) and in 1956 computers were already produced with this technology. Also appeared in modern devices such as printers, magnetic tapes, disks for storage, etc.
First computers.
Computers now have a rapid development, driven primarily by two key factors: the operating systems and languages programmatically integrated circuits provide a new advance and they came with the computers of third generation (1964-1970).
Personal computers.
LSI technologies, VLSI and ULSI contain millions of electronic components in a small space or chip, starting the fourth generation to the next day. The current advances in research and design of new technologies for computers are enabling the emergence of the fifth generation. Two advances that constitute a watershed are parallel processing, which broke the paradigm of von Neumann, and technology of superconductors.
Latest generation computer.
First computers.
Computers now have a rapid development, driven primarily by two key factors: the operating systems and languages programmatically integrated circuits provide a new advance and they came with the computers of third generation (1964-1970).
Personal computers.
LSI technologies, VLSI and ULSI contain millions of electronic components in a small space or chip, starting the fourth generation to the next day. The current advances in research and design of new technologies for computers are enabling the emergence of the fifth generation. Two advances that constitute a watershed are parallel processing, which broke the paradigm of von Neumann, and technology of superconductors.
Latest generation computer.
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