Formerly the name carbohydrate was used in chemistry for any compound with the formula C m (H 2 O) n. Following this definition, some chemists considered formaldehyde (CH 2 O) to be the simplest carbohydrate, while others claimed that title for glycolaldehyde.
Samsung unveils 2.5-inch 16TB SSD: The worldâs largest hard drive. Third-generation 3D V-NAND is now up to 48 TLC layers and 256Gbit per die. At the Flash Memory Summit in California, Samsung has unveiled what appears to be the world's largest hard driveâand somewhat surprisingly, it uses NAND flash chips rather than spinning platters.
Seagate developed the first 5.25-inch hard disk drive (HDD), the 5-megabyte ST-506, in 1980. They were a major supplier in the microcomputer market during the 1980s, especially after the introduction of the IBM XT in 1983. Today Seagate along with Western Digital dominates the HDD market.