急 求助 UCI要求的SOP/PS有什么区别

PERSONAL HISTORY STATEMENT demonstrating your writing and communication ability. The personal statement should include:
A personal history describing your previous professional and academic achievements.
Your purpose, including your personal, academic and professional goals, and how and why the MCS program will help you to achieve these.
STATEMENT OF PURPOSE providing a statement of your personal, academic, and professional goals, as well as why and how the MCS program will help you achieve these goals.

这是Computer Science系所写的说明，这不是写一样的吗。。

下面这个是学校的说明，该按照哪个写呢？

The Personal History Statement essay should focus on your personal background and any challenges or obstacles you may have encountered in your academic journey and how you overcame them.The Statement of Purpose should focus on your academic/research background and interests.