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.
Hard Disk. â¢ The hard disk drive is the main, and usually largest, data storage device in a computer. â¢ It can store anywhere from 160 gigabytes to 2. terabytes. â¢ Hard disk speed is the speed at which content can. be read and written on a hard disk. â¢ A hard disk unit comes with a set rotation speed.