The computer, a name given in 1955 by J. perret, is a data processing machine (information). It mainly contains a processor, a memory and mechanisms. It consists of a screen, a central unit, a keyboard, a mouse and a video card. It can be added several devices such as printer, scanner, etc.
The history of computer development is as follows:
- In 1937, Howard Aiked created the Mark 1 which is a programmable computer 17 m long by 2.5 m high; its calculation time is 5 times faster than that of man;
- In 1938, Konrad Zuse created the Z.3, the first computer to use the binary instead of the decimal and that works through electromechanical relays;
- In 1947, there was the improvement of the Mark 1 (which was called Mark 2). The only difference between the two was the replacement of gears by electrical components;
- 1942, ABC (Atanasoff Berry Computer) is created. It represents the first computer with tube (lamp lit = 1, lamp off = 0);
- In 1946, the disappearance of mechanical parts in ENIAC (Electronic Numerical Integrator And Computer); it occupies 1500 m2 and the appearance of the first programs stored in memory. This 30-tonne computer consumed 140 kilowatts and made 330 multiplications per second;
- In 1971, it is the series of micro computers integrating the transistors with the birth of Kenback 1 which had a memory of 256 bytes;
- In 1976, there was the creation of the first computer with a microprocessor and a keyboard that had been to further improve not only the storage capacity, but also the processing time of the data;
- In 1981, it is the turning point in the history of the computer with the appearance of the first personal computer (Personal Computer). This era is the starting point of everything we know today as a computer.
If the computer has experienced such a development, what about its different elements?
Two illustrations are considered in this article, namely hard disks and processors which have had different models since 1984.
Regarding hard drives, we can note the appearance of the first hard drive in 1957 with a capacity of 5 MB, and in 2003 they were not only miniaturized, but also reached the capacity of 260 MB. Today, this capacity is evaluated in GB.
As for the processors, we have known so much that we have allowed ourselves to present their evolution below:
- 1971: Intel 4004;
- 1972: Intel’s first 8-bit 8008 processor;
- 1973: 8080 processor;
- 1976: Steve Wozniak and Steve Jobs created the Apple I to 1MHz, 4 KB of RAM and 1 KB of 16-bit video memory;
- 1981: 8080 processor at 5 Mhz;
- 1982: Intel 80286 processor;
- 1984: first 32-bit processor;
- 1989: first processor 386;
- 2000: AMD K6-2 processor;
- 2001: Pentium III at 1.5 GHZ;
- 2002: Pentium IV.
And to stop this article, we searched and found for you a video about the evolution of the computer, from the big systems to the micro computers. It is in principle a museum where the collector was able to gather most of the machines.