The bar chart compares the participation of men in experienced development proportion in three various companies namely IBM, Microsoft, Apple over the span of 30 years from 1980 to 2010.
Overall, one of the most noticeable features of the chart is the gradual growth in the companies IBM and Microsoft from 1980 to 2010. In contrast, Apple company had minimal fluctuations throughout the period. In 1980, Apple has the most senior developer positions compared to the other two, IBM with a extremely less rate(1%) and Microsoft with around 5% – 8%. IBM had a stable rate in the first 5 years and had a remarkable growth in the year 1990 with 13% experienced developers, and from there it surpassed the remaining companies by ending with almost 60% to 65% in the year 2010. Microsoft has a slight increase for every 5 years and ended up with second most high-level developers in 2010 near to 50%. Apple with up and down flows had the less proportion of seniors in the company (25%).
In summary, IBM and Microsoft had a immensely less rate of seniors and had eventually increased from 1980 to 2010, In contrast, Apple started with 13% in 1980 and ended with 25% only in 2010.