Search results
Results From The WOW.Com Content Network
1 hertz (Hz) 1 to 1.66 Hz: Approximate frequency of an adult human's resting heart beat: 1 Hz: 60 bpm, common tempo in music 2 Hz: 120 bpm, common tempo in music ~7.83 Hz: Fundamental frequency of the Schumann resonances: 10 1: 10 hertz 10 Hz: Cyclic rate of a typical automobile engine at idle (equivalent to 600 rpm) 12 Hz
Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time. [1] It is also occasionally referred to as temporal frequency for clarity and to distinguish it from spatial frequency.
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. [ 1 ] [ a ] The hertz is an SI derived unit whose formal expression in terms of SI base units is s −1 , meaning that one hertz is one per second or the reciprocal of one second . [ 2 ]
These have modern equivalents such as kilohertz (kHz), megahertz (MHz), and gigahertz (GHz). Following the introduction of the SI standard, use of these terms began to fall off in favor of the new unit, with hertz becoming the dominant convention in both academic and colloquial speech by the 1970s. [5]
1 × 10 18 hertz Frequency PHz petaHertz 1 × 10 15 hertz Frequency THz teraHertz 1 × 10 12 hertz Frequency GHz gigaHertz 1 × 10 9 hertz Frequency MHz megaHertz 1 × 10 6 hertz Frequency KHz kiloHertz 1 × 10 3 hertz Frequency Hz Hertz 1 Hertz Energy Per Photon keV kilo-electronvolt 1 × 10 3 electronvolts Energy Per Photon eV electronvolt 1 ...
gigahertz—clock rate of a CPU, for instance, 3 GHz = 3 000 000 000 Hz; gigabit—bandwidth of a network link, for instance, 1 Gbit/s = 1 000 000 000 bit/s. gigabyte—for instance, for hard disk capacity, 120 GB = 120 000 000 000 bytes; gigayear or gigaannum—one billion (10 9) years, sometimes abbreviated Gyr, but the preferred usage is Ga ...
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
On March 6, 2000, AMD demonstrated passing the 1 GHz milestone a few days ahead of Intel shipping 1 GHz in systems. In 2002, an Intel Pentium 4 model was introduced as the first CPU with a clock rate of 3 GHz (three billion cycles per second corresponding to ~ 0.33 nanoseconds per cycle). Since then, the clock rate of production processors has ...