Band 4+: The bar chart below shows the percentage participation of men in senior development in three companies between 1980 and the year 2010. Summarise the information by selecting and report in the main features, and make comparisons where relevant.

The bar chart illustrates the proportion engagement of male in senior development in IBM, Microsoft and Apple from 1980 to 2010.

Overall, IBM has made up of majority in partipation of men while Apple has the lowest ratio throughout the period.

At the outsset, the percentage participation of men in IBM was only 2% – the minimum number. After five years, there had a dramatical increase, in particular, the senior in IBM peaked at more 63% (more 31 times as starting time).Conversely, the number of workers in Apple were the highest proportion in 1980 (according to 13%), but in 2010, it had a lowest percentage engagement (less 1/3 as IBM in the same time). To explain that, from 1985 to 1990 saw a slightly decline and Apple had to spend 5 years later recovering the growth of senior. Microsoft was the best stable growth. It increased slightly and steadily throughtout the period. Getting top 2 in the last period also proved that Microsoft created stable income for employee.