Kilobytes Megabytes Gigabytes. The size of information in the computer is measured in kilobytes, megabytes, gigabytes, and terabytes. In this section, we'll look at common sizes you would see in real life, and work some arithmetic. Any thinking person today should have a rough idea of what KB, MB and GB are.
The maximum upper range of human hearing is about 20 kHz for children, declining to 15-17 kHz for middle-age adults. The top end of a dog's hearing range is about 45 kHz, while a cat's is 64 kHz.
When we examine the most sensitive frequency for hearing in these animals, they do very well for sounds around 1,000 hertz (1 kHz) but quickly lose their ability to hear well at higher frequencies. On the other hand, animals with three middle ear bones tend to hear at much higher frequencies.