It’s also in charge of storing, restoring, caching, and cleaning up data. While HDDs have a mechanical arm to read and write data, an SSD uses a processor (controller) to read and write data. NAND is a non-volatile flash that keeps data stored in it even if the disk is off. Most SSDs use NAND flash memory because it’s faster for writes and smaller in size than NOR. SSD depends on flash-based memory, with NOR and NAND being the two most popular flash types. An SSD drive (Image source: Wikimedia Commons) You can say that it’s a more advanced and sophisticated form of a USB memory stick. SSD is smaller in size in comparison with HDD and can even be mounted to the motherboard directly. With SSD, the data is stored in microchips, making it faster.
Unlike HDDs, an SSD storage device doesn’t have moving parts and almost instant access times. The speed of an HDD depends on the number of spins/rotations it makes per minute. There are two popular HDD sizes: 2.5-inch HDD used in laptops and 3.5-inch HDD found in desktops. It has a mechanical arm to enable it to write and read data. An HDD is an electro-mechanical, volatile storage device that consists of multiple platters (disks) that spin around a spindle (central axis). If you’re familiar with old record players, an HDD is a bit similar.
An HDD drive (Image source: Wikimedia Commons) However, it’s now considered an old technology for storing data due to its method of operation. You can find them in various electronic devices such as desktops, laptops, game consoles, mobile phones, and tablets. Even though SSDs and HDDs are both used to store data, they operate differently. To understand the hype over SSD, you should first know how it works and how it’s different from a legacy storage technology like HDD. How is an SSD different from an HDD? Which one is better? And how can you pick the right SSD for your needs? 🤯 Click to learn more ⬇️ Click to Tweet Difference Between SSD and HDD The increasing need for speed, high performance, and reliability are critical factors for the growth and advancement of SSDs over HDDs. Ample storage SSDs were introduced in 2009 by OCZ Technology came with a 1 TB flash-based SSD, whereas Virident Systems developed second-generation flash-based SSDs with up to 2.2 TB of storage in 2012.īy the end of 2012, we saw reliable enterprise flash drives for high-performance applications, such as Intel’s SDD DC S3700 drive. It wasn’t until 2006 that flash SSDs were mass-marketed by Samsung with 32 GB capacity and a PATA interface. PATA connector plugged in hard drives to computers. In 2003, Transcend introduced cheap flash SSDs with a Parallel Advanced Technology Attachment (Parallel ATA or PATA) connector that cost as low as $50. By the 1990s, flash-based SSDs were introduced and started gaining popularity globally, but they were still costly (up to $47,000). Although this 2 GB SSD revolutionary creation still used core memory, it was highly compatible and operated much faster than fixed-head disks.Ĭompanies started developing SSD technologies, such as the Sharp PC-5000 with a 128 KB SSD bubble memory in 1983. However, those two solutions went out of style in the 1950s and 1960s with the growing popularity of cheaper storage components like drum memory.Īs technology is constantly evolving, by the 1970s and 1980s, SSDs were back on the scene, but they were pretty expensive and weren’t widely adopted until Dataram introduced the Bulk Core SSD in 1976.
(Image source: Dsimic, via Wikimedia Commons)ĭid you know that the long journey of SSD storage and its development began in the 1950s?īack then, they used them in first-generation computers ( vacuum tube computers) through two similar technologies: card capacity read-only storage and magnetic core memory. History of Solid-State Storage (SSD) A 2.5-inch bay SSD.
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