Ivy League universities are a group of 8 very old and highly respected universities in the USA. They are famous because they give excellent education, have top professors, and their graduates get very good jobs globally. Examples include Harvard, Yale, and Princeton.

A major is the main subject in your degree (like Computer Science). A minor is a smaller secondary subject you study along with your major (like Psychology or Business). It helps you learn extra skills.

In the USA, marks are given in GPA (Grade Point Average) instead of percentages.
It is usually on a 4.0 scale, where 4.0 is the highest.
For example:

• 4.0 = A grade
• 3.0 = B grade

GPA helps colleges measure your academic performance

A prerequisite means a subject or skill you must already know before joining a course.
Example: If you apply for Data Science, universities may want you to know basic maths or coding first.

It helps students understand the course better.

Both CPT and OPT allow students to work, but the purpose is different:

• CPT (Curricular Practical Training): Work or internship that is part of your course.
• OPT (Optional Practical Training): Work after finishing your degree.
  CPT = during studies,
  OPT = after studies.

Accreditation means the US government or an official agency has checked that the university meets quality standards. A properly accredited university is safe, recognised worldwide, and trusted by employers. It also protects students from fake or low-quality institutions.