This doesn't seem like a big deal, but it's a problem with many of the first motherboards to make use of the feature. A computer memory is made up of millions of bytes. Examples of external storage devices. As we all know, computer hardware is composed of three parts: the host computer consisting of CPU and memory, system buses, and external devices like secondary storage and other I/O devices. The M.2 interface is an advancement in computer storage and performance. Otherwise, it runs the same as any existing SATA 3.0 drive. The traditional spinning hard drive is the basic non-volatile storage on a computer. With hard drives now storing tons of data and SSDs becoming more and more common, your computer's storage can now range from 64GB to 3TB. This concept does not pertain to the primary storage, which is shared between multiple processors to a lesser degree. Every hard drive has a specific amount of space. When referring to computer storage, “hard drive” (or SSD, see below) is the term typically used. The most common unit of storage in computer is called a byte which is equal to 8 bits. What does a GB mean? The CPU is often referred to as “the brain” of your computer, so ensuring it’s working properly is very important to the longevity and functionality of your computer. What Does GB Mean and Why Is It So Important? Whether you have lots of photos or a colossal music collection, you'll want to invest in more space so your computer can keep up. Storage’ refers to long-term storage.Everything that your computer knows, but isn’t thinking about, is in storage, written on the Hard Disk Drive (HDD).This is a permanent type of storage: hard drives can be unplugged and contain the same information as when they’re plugged in or turned on. Removable storage, in computing terms, is any form of data storage which is not incorporated into the computer itself. The following list is of external storage devices used over the evolution of the computer. Direct-attached storage (DAS) is a traditional mass storage, that does not use any network. A secondary or tertiary storage may connect to a computer utilizing computer networks. Computers must use the PCI-Express bus to get the best performance. That's a pretty big range. All data and information fed into a computer, as well as the program that comes preloaded are stored in form of bytes. GB is an abbreviation for gigabyte. When the computer is running, CPU will transfer the data that needs to be operated from the secondary storage into the memory. Storage Space – The amount of space you can use to store your files. If you are not familiar with the technology lingo, you may not have a clue as to what GB stands for in the computing world. This is still a most popular approach. That is, information on it doesn't "go away" when you turn off the system, unlike data stored in RAM. 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