Today's CPUs run at speeds measured in kilohertz.?

Today's CPUs actually run at speeds measured in gigahertz (GHz), not kilohertz (kHz). A single gigahertz equals one billion cycles per second, allowing modern processors to perform billions of calculations in the same timeframe. This advancement in clock speed, along with improvements in architecture and parallel processing, has significantly enhanced computing performance compared to earlier generations that operated in kilohertz.