Flash storage is storage that uses electronically programmable and erasable memory modules with no moving parts. It refers to a very specific implementation of data storage.
Flash storage is in the MacBook Air and MacBook Pro with Retina display. It's a SSD without the enclosure, getting the same speed as with the SSD but in less space. This doesn't mean that your files are stored in Internet.
Flash storage is a solid-state technology that uses flash memory chips for writing and storing data. Solutions range from USB drives to enterprise-level arrays. Flash storage can achieve very fast response times (microsecond latency), compared to hard drives with moving components.
So if you have a flash device in the shape of a 2.5" drive it is an SSD. MacBook Airs, Retinas, new iMacs, and the new Mac Pro all use PCIe form factors giving even better performance.
PCIe, or peripheral component interconnect express, is a high-speed serial expansion card format that uses a point-to-point architecture. PCIe-based flash has far better performance than more typical SATA- or SAS-connected solid-state drives (SSD) or flash because of the direct connection to peripherals.
SSD flash drive A solid-state disk (SSD) flash drive stores data using flash memory. An SSD has advantages over a hard disk drive (HDD). Hard disks have an inherent latency, caused by mechanical components. A solid-state system has no moving parts and therefore less latency, so fewer SSDs are needed.
Common examples of Flash memory include: Multi-Media Card (MMC) - a Flash-based memory card standard used for solid-state storage in smartphones, digital cameras, music players, video camcorders, and personal computers. These cards store digital information such as text, pictures, audio, and video.
Flash storage is a data storage technology based on high-speed, electrically programmable memory. The speed of flash storage is how got its name: It writes data and performs random I/O operations in a flash. Flash storage uses a type of nonvolatile memory called flash memory.
The best way to sum up the differences between flash memory and SSDs is to think of them as the following: an SSD is a storage device while flash memory is a storage medium. Many devices can use flash memory, but not all devices with flash storage are considered SSDs.
Because it uses integrated circuit technology, flash storage is a solid-state technology, meaning it has no moving parts. When flash technology is used for enterprise storage, the term flash drive or flash array is often used interchangeably with solid-state drive (SSD).
SSD just means a hard disk that doesn't have moving parts; Flash is a type of memory that is very fast and doesn't require continuous power (non-volatile) SSDs used to use RAM, but now use Flash instead. In short, you shouldn't compare Flash to SSD just as you shouldn't compare batteries to lithium-ion.
Pros and Cons of Flash Memory
Flash memory, also known as flash storage, is a type of nonvolatile memory that erases data in units called blocks and rewrites data at the byte level. Flash memory is widely used for storage and data transfer in consumer devices, enterprise systems and industrial applications.
What Is Flash Storage? Unlike HDDs, SSDs use flash storage technology. USB drives also use this technology, but SSDs provide a more advanced version designed to handle the daily demands of computers and servers. Flash storage utilizes memory chips to store data versus the traditional moving disks used in HDDs.