What was the speed of the first commercial CPU?

What was the speed of the first commercial CPU?

• 1 GHz
• 100 kHz
• 2 MHz
• 5 Hz 

EXPLANATION

The initial clock speed of 4004 is 108 kHz, while the maximum clock speed is 740 kHz. Memory bus architecture is of the Harvard type (The Harvard architecture is a computer architecture with physically separate computer storage and signal pathways for instructions and data. The term originated from the Harvard Mark I relay-based computer, which stored instructions on punched tape and data in electromechanical counters). The 4004 used 4-bit bus for transferring, 12-bit addresses, 8-bit instructions and 4-bit data word.

Computer processor history

Year	Event
2002	Intel released the Celeron 1.3 GHz with a 100 MHz bus and 256 kB of level 2 cache.
2003	Intel Pentium M was introduced in March 2003.
2003	AMD released the first single-core Opteron processors, with speeds of 1.4 GHz to 2.4 GHz and 1024 KB L2 cache, on April 22, 2003.