Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Subjects ( subject_id VARCHAR, subject_name VARCHAR )
TABLE: CREATE TABLE Courses ( course_name VARCHAR, course_description VARCHAR, subject_id VARCHAR )

### Question ###
Find the names and descriptions of courses that belong to the subject named 'Computer Science'.

### Accurate SQL ###

SELECT T1.course_name, T1.course_description FROM Courses AS T1 JOIN Subjects AS T2 ON T1.subject_id = T2.subject_id WHERE T2.subject_name = "Computer Science"