https://padlet.com/israa_q_daa/98iaz9unj9tc en-us 2017-09-25 06:40:43 UTC 2025-09-24 15:05:13 UTC hello@padlet.com israa_q_daa https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190779326 The Hard Disk Drive (HDD) is the main form of data storage hardware device in a computer. It has evolved majorly over the years and will continue to evolve as time goes on. ]]> 2017-09-25 12:31:55 UTC https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190779326 israa_q_daa https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190825831 The first commercial hard drive-based computer was released by IBM in 1956. RAMAC was the name of the computer- short for "Random Access Method of Accounting And Control." The hard disk drive, the IBM 350, storage was the size of two refrigerators with 50, 24-inch platters stored inside, while the RAMAC required an entire room to function. The system could only store less than 5 MB and cost $3,200 which is around $28,000 today. In 1961 IBM released the first disk drive with air-bearing heads, these are very important as every modern hard drive uses a related design. The IBM 301 Storage system  had less failures and data loss because the heads were floating on a thin layer of air rather than the heads touching the disks. In 1963, IBM invented the, 1311,  first removable hard drive which has six 14-inch platters and stores 2.6MB. In 1970 the floppy disk was released by several companies, it was 80 inches and stored 80 kilobytes. It allowed data to move easily between computers but did not replace the hard drive storage at the time. IBM announces the 3340 in 1973, which is the first Winchester hard drive. It is the predecessor of all current disk drives as its sealed allowing precise operating conditions, as well as lubricated platters and low-mass heads. The ST-506, the first 5-1/4-inch hard disk for microcomputers, was invented by Seagate Technology in 1980. In 1988 Prairie Tek releases the 220, the first hard drive in 2.5-inch form, the most common size hard drive till this day. ]]> 2017-09-25 14:02:23 UTC https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190825831 israa_q_daa https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190854398 In 2003, the official Serial ATA was invented and allowed faster data transfer. It quickly became the main hard drive for desktops and laptops. In 2007 the first 1 terabyte hard drive was manufactured. Hitachi Global Storage Technologies passes an important milestone in data systems as they announce a hard drive with a 1 terabyte capacity. Hitachi Global Storage Technologies (HGST) achieves another important benchmark by introducing 7K1000.D. in 2011. As its the first 1 terabyte platter it is capable of storing 1 terabyte of information. HGST announced that it be using helium instead of air-filled to reduce power consumption in 2014. In 2015 Hard drives by HAMR were made of a new material that allowed data to be written by raising the temperature of the material. ]]> 2017-09-25 14:47:24 UTC https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190854398 israa_q_daa https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190986168 In 2020 it is expected that bit-patterned media will be introduced, which is a way of storing data, where data is stored in a single magnetic cell. HDDs will continue to evolve in the next 20 years in terms of capacities and better performance. A permanent solution to hard drives not lasting could be using DNA to store data. ]]> 2017-09-25 18:39:33 UTC https://padlet.com/israa_q_daa/98iaz9unj9tc/wish/190986168