<p>Here are the CS major prerequisites, from [Undergraduate</a> L&S CS Students | EECS at UC Berkeley](<a href=“CS Major Information | EECS at UC Berkeley”>CS Major Information | EECS at UC Berkeley) :</p>
<p>CS 61A, 61B, 61C, 70
Math through 54 (note: 53 not required)
EE 42 (or 40)
(total of 6 to 8 courses, depending on how much AP Calculus credit you come in with)</p>
<p>Here are the UGBA prerequisites, from [Prerequisites</a>, Undergraduate Program - Haas School of Business, UC Berkeley](<a href=“Application Process - Undergraduate Program - Berkeley Haas”>Application Process - Undergraduate Program - Berkeley Haas) :</p>
<p>UGBA 10
Economics 1 or 2
Statistics 20, 21, or 25
Math through 16B, 1B, 53, or 54 *
Reading and Composition A and B **
(total 5 courses, not including Math which is covered by the CS prerequisites)</p>
<ul>
<li>If you do not complete Math 53 or 54, note the [special</a> rules for math courses and AP credit for UGBA](<a href=“Application Process - Undergraduate Program - Berkeley Haas”>Application Process - Undergraduate Program - Berkeley Haas).
** Needed to graduate in any L&S major (including CS) anyway.</li>
</ul>
<p>Since you’ll be taking about 16 courses in your first 4 semesters, you should have plenty of room to complete the prerequisites for both majors. You’ll probably want to use any extra schedule space to complete 7-course breadth requirements (those not fulfilled by either major), including an American Cultures course.</p>
<p>If you start off the CS, UGBA, and Economics courses early, you can get a feel of which you like. If you like one much more than the other, you can consider discontinuing taking the courses for the one you do not really like. If you like both, you may want to consider a major + minor, major + electives in the other, or even simultaneous degrees (though scheduling that may be a difficult puzzle to put together). If you dislike both, at least you will have found out early and can start thinking about other majors and taking prerequisites for them with less chance of being delayed.</p>