In early personal computers, eight was and still is a magic number . It is a composite number and it is the cube of two: 2 x 2 x 2 =8 or two raised to the third power.
You see and use bytes all the time. The file is fifty kilobytes or there is three gigabytes of memory on my memory stick or you have a gigabyte of random access memory(RAM).
A byte is a unit of data eight binary digits (0,1) long that represent a character such as a letter, number or symbol. Bytes can from combinations of 256 characters which form our alphabet, numbers and special symbols. Yes, two raised to the 8th power is 256. (2x2x2x2x2x2x2x2=256)
Byte are used to measure random access memory in computer. In 1969, one of the most powerful computers had a RAM of four kilobytes that launched men into space sending them to the moon.
Today’s kids have two gigabytes or RAM and they are lost in space playing on computers Minecraft or Facebook. With all the time kids spend on computers, parents would like to send them to the moon.
The divisibility rule for eight is if the last three digits are divisible by eight, the entire number is divisible by eight. Well, use a calculator.
Below is a video posted by WOODSYMAN which a good introduction to bytes:
Since you are working on electronic projects using circuit boards, this video gives a little different perspective about the flow of electricity. Posted by KarBytes:
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