Which venture-capital firm did Arthur Rock and Tommy Davis establish in 1961?

Arthur Rock and Tommy Davis established Davis & Rock in 1961.

Davis & Rock was an early venture-capital partnership formed by two influential investors. Arthur Rock had helped arrange financing for Fairchild Semiconductor and later became associated with investments in companies including Intel and Apple. Tommy Davis was an experienced investment professional who had worked with entrepreneurs and technology businesses.

The partnership helped establish the modern venture-capital pattern of supplying equity funding to young companies in exchange for ownership and influence. Its formation came during a period when emerging semiconductor and electronics businesses were creating new opportunities for specialized investors.

Davis & Rock is sometimes confused with later firms such as Kleiner Perkins or Sequoia Capital. Those firms became prominent venture investors after Davis & Rock was formed. The question concerns the partnership established by Rock and Davis in 1961, not the first modern venture-capital firm, which is generally identified as American Research and Development Corporation.