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B. Gigahertz (GHz)
The clock speed of a CPU is a fundamental measure of its processing power, indicating how many processing cycles it can complete per second. The unit used to measure the clock speed of a CPU is Gigahertz (GHz). One Gigahertz represents one billion cycles per second. A higher clock speed generally means the CPU can execute instructions faster, leading to better overall computer performance.
- Bytes are units of digital information storage, used for measuring memory capacity (e.g., RAM, hard drive size), not speed.
- Megapixels are units used to measure the resolution of digital images or camera sensors, indicating the number of pixels.
- DPI (Dots Per Inch) is a measure of spatial printing or video dot density, used for printer resolution or screen density.