Multiple choice general knowledge science & technology First Single Chip Microprocessor 4004 was a 4-bit processor 8-bit processor 16-bit processor 32-bit processor Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Intel 4004, released in 1971, was a 4-bit processor and the first commercially available microprocessor. It contained 2,300 transistors and could execute 92,000 instructions per second. The '4004' designation reflects its 4-bit architecture.