Ex+1+T3++Question+2

2. Describe the 4 generations of computers. (Use examples and descriptions of how the computers were and worked in each one). Do you think we already are in a fifth generation? If so explain on what you base your statement, give examples.

-1 generation: vacum tubes. - 2 generation: transitors were used. -3 generation: Development of Transistros -4 generation. Microprocessors IC (intel)

1.generation. It was for the memory. A computer could have approximately 19 000 of these. John Von Neumman created the architecture of the modern computer which included: output, input, control unit, Memory, arithmetic logic. This computers were not common and they were not invented for personal use. This vacum tubes were a expensive way to maintein a computer working, because they worked as a series circuit which means that if one vacum tube was broken, then the whole computer wasnt working at all. The size of this computers were huge. They were more tha 2 rooms together, and from here comes the name of th bugs (in technolgy) because as it was very big lots of bugs created their homes inside the vacum tubes because the environment had hot and sometimes they made the vacum tubes break.

2nd generation was shocked by the use of Transistors which there could be more than 6000 in a computer. This invention was a big advance in technology, a resistor was more efficient that vacum tubes. This generation became cheaper and more effective. The size of the computers started reducing.

3rd generation: As generation advanced, they became cheaper and available for rich people and worked with Transistors as well, this onces had more capacities so you needed less transistors because they were better They also were smaller and had the same capacity than the other ones they were easier to make so because of this computer became more popluar for home use and cheaper. . 4 generation .Microprocessors IC (intel) They are smaller. they were in an available price so organizations started to own them. This became cheaper and even more efrfective. Why? becuase the microprocesor could have the capacity of millions of transistors just in a very small piece. Nowadays we have a lot of microprocesors some of them are better than others. the price will also vary.

In my iopinion we are not in the 5th generation and we have a long way to the 5 generation. 1st of all we are still using microprocesors and we havent develop the technology to make something cheaper and more effective, at least not in the commercial market. May be in the NASA or big guvernmental companies they have sort of a 5th generation because they need more capacities, effectiveness and speed. We are in the procces where new techonolies are being developed but with the same mechanism as the ones in the fourth generation so we havent reached 5th generation. Computer are still expensive.