Mike Markkula, Apple's second CEO, was crucial to the company's success and success. He was instrumental in setting out Apple's ambitions and beliefs in a single-page marketing note still relevant today. He retired at age 33 from Intel and Fairchild Semiconductor due to stock options he earned. After retiring, he returned to work, focusing on advising startup firms. In 1976, Steve Jobs was unsuccessful in finding a suitable partner for Apple, but was encouraged to join by venture capitalist Don Valentine who suggested to Markkulas. Markkulula also managed to convince Steve Jobs and Steve Wozniak to write a business plan and eventually convinced them to invest in the company. He invested $250,000 in the Bank of America and also secured a $92,000 line of credit at the bank.