Identifying Intel Corporation's First Microprocessor

The question asks to identify the first microprocessor built by Intel Corporation from the given options. To answer this, we need to know the history of early microprocessors.

A microprocessor is essentially a computer's central processing unit (CPU) contained on a single integrated circuit (chip). It's a crucial component that performs arithmetic, logic, and control operations.

Intel Corporation played a pioneering role in the development of microprocessors. In the early 1970s, they developed the world's first commercially available single-chip microprocessor.

Let's look at the options provided:

• 4004
• 8085
• 4089
• 4005

Historically, the microprocessor recognized as Intel's first is the Intel 4004. Introduced in 1971, it was a 4-bit microprocessor and is considered a landmark achievement in computing history, paving the way for the personal computer revolution.

The Intel 8085, another significant microprocessor, was introduced much later, in 1976. It was an 8-bit microprocessor.

Options 4089 and 4005 are not recognized as early Intel microprocessors; they do not correspond to known early models like the 4004, 8008, 8080, or 8085.

Therefore, based on historical facts about Intel's product line, the Intel 4004 was their first commercially produced single-chip microprocessor.