The way in which info is stored on hard disk drives is methodical and logical. When you “save” info to the hard disk drive, it’ll do so in a logical way.
The brain of the computer is made from many switches. As switches, they can either be “on” or “off,” or a binary set of values corresponding to 0 or 1. As such, the computer is alleged to know just one language and that's binary.
Everything in your computer machine boils down to 0’s and 1’s. Anything digital is made from “bits.” A bit is one switch or binary digit. The binary number “0101” has 4 bits. But computing machines don't work vis singular bits but in terms of larger storage units.
A storage unit is 1, precise amount of one or two binary digits. It can so be said that a bit is a single binary digit which can only store one of two values. Four bits equal a nibble. 2 nibbles make up one byte, 2 bytes make up one word, 2 words make a double-word and 2 double-words make up a quad-word.
Your computer can store only a definite number of storage units or bytes. The digital information thus stored makes reference to the values defined by the storage units kept on a digital item.
The minimal value of a storage unit is always zero but its upper limit worth depends on the amount of bits which makes it up. We'll take for instance the nibble. It is made of 4 bits, so its range is from “0000b” to “1111b.” By the process of converting binary to decimal, we will make it arrive at a variety of “0” to “15.” And “15” in hex is only “0xF.” As such, a nibble represents a single hex digit just in the same way as a bit represents a single binary digit.
2 hex digits equal to a byte, 4 hexadecimal digits to a word, 8 hexadecimal digits to a double word and 16 hexadecimal digits to a quad-word. This is way more concise than the voluminous quantity of bits associated with it. It can hence be related the hex numbering system is really handy when handling storage units. And there's the added convenience of straightforward conversion from binary to hex and vice versa.
When you consider that a byte consists of any of 256 values, you may have an idea on just how massive the data a gig or terabyte of disk can store.
Brian Shaw runs a data recovery business called Kingdom Data Recovery Edinburgh who service all of the United Kingdom. He’s got many articles on his web site which refer to issues with storage devices and helpful info about stopping data loss.