Question

write the year in which the following invention took place. 1. first mechanical calculator. 2. first electronic communication computer.3. first mechanical computer.4.first version of Microsoft windows realesed
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Answer 1

Answer:

1) 1822

2) The first radio developed by Guglielmo Marconi in 1894.  

    The first large-scale automatic digital computer in the United States was              the Mark 1 created by Harvard University around 1940.

1836  ,The invention that got electronic communications started was the telegraph. It was invented by Samuel Morse in 1836.

   

3) 1837

4)1985

Answer 2

Answer:

1. 1642

2.1946

3.1940s

4.1986