Confidence votes 33. First of all you are probably a 'rent asking this and not every word in the dictionary a teen has a slang word for, so remember that and don't critcize them just because they are WAY cooler than the kids next door!
When Raw Disk Image type is not mentioned explicitly in this guide, we are referring to the Backup Disk Image. Another file format supported is ISO image. ISO images are used to store a copy of CD/DVD/Blue-ray disc in a file and stand apart from actual disk images.
They allow the user to input specific types of information to be stored in the computer's memory. Many drives are input-only, meaning they can only read information. Other drives, such as CD and DVD writers, can output information to physical media. The most common drive is a hard disk drive (HDD). This drive is usually located inside the computer and is accessed directly through its operating system. The HDD serves as a computer's main source of storage. Media files, documents, games and entire operating systems can be called up at will from the HDD.