History of the Hard Disk Drive

Hard Disk Drive or frequently as we call 'the hard disk is only' one of the most important components in the computer. Hard Disk Drive has a name that called the general recording media that works to save data (information). Many of us use the hard disk, but may be very few people who know the origin of the Hard Disk Drive. Therefore in this forum I try to discuss the origin of the Hard Disk first.
Hard Disk Drive first created and produced by the IBM company in 1956 and then called the HDD as the first generation. HDD is the first found and created by Reynold Johnson. HDD is labeled RAMAC 305, which has a capacity of 5 Mega bits, or 5,000,000 bits and size 24 INCH and menggunakkan single head in pengaksessaanya.
In 1961 IBM created the HDD with menggunakkan head in each of the separate components of the data. Which is also called Disk Storage Unit Control System Meganical the International System. And the first HDD that can be removable (can be removed or installed again) is the IBM 1311, which uses IBM in 1316 to save 2 million characters.
In 1973, IBM introduce the IBM 3340, the first merupakkan HDD using the system disk "Whincester", the first sealed head / disk assembly (HDA). This technology designed by Kenneth Haughton.
Before 1980, most berurukuran 8 INCH HDD or 14 INCH, so many places need to save the HDD. Until the 1980s, when Seagate Technology mengenalakan ST-506, which is the first HDD-sized 5.25 inch, with a capacity of 5 megabites.
And even now, HDD capasita Terrabites reach 3.5 inch in size, so I below provides a timeline I can from a web of HDD development until now.

1950s
• 1956 - first commercial hard disk, the IBM 350 RAMAC disk drive, 5 megabyte.
1960s
1970s
• 1973 - The IBM 3340 storage system held 1.7 MB per square inch
1980s
• 1980 - first 5.25-inch Winchester drive, the Shugart ST-506, 5 megabyte (CS)
• 1982 - Hitachi 1.2 GB H-8598 consisted of 10 14-inch platters and two read-write heads
• 1986 - Standardization of SCSI
• 1989 - Jimmy Zhu and H. Neal Bertram from UCSD proposed exchange decoupled granular microstructure for thin film disk storage media, still used today.
1990s
• 1990 - MR Technology introduced (=MagnetoResistive read sensor).
• 1991 - 2.5-inch 100 megabyte hard drive
• 1991 - PRML Technology (Digital Read Channel with 'Partial Response Maximum Likelihood' algorithm)
• 1993 - Micropolis 650MB SCSI 5.25" HDD
• 1994 - IBM introduces Laser Textured Landing Zones (LZT)
• 1995 - 2 gigabyte hard drive
• 1996 - IBM introduces GMR (Giant MR) Technology for read sensors
• 1997 - 10 gigabyte hard drive; Load/Unload Technology introduced in laptop HDDs
• 1998 - UltraDMA/33 and ATAPI standardized
• 1999 - IBM releases the Microdrive in 170 MB and 340 MB capacities
2000s
• 2002 - 137 GB addressing space barrier broken
• 2003 - Serial ATA introduced
• 2005 - First 500 GB hard drive shipping (Hitachi GST)
• 2005 - Serial ATA 3G standardized
• 2005 - Seagate introduces Tunnel MagnetoResistive Read Sensor (TMR) and Thermal Spacing Control
• 2005 - Introduction of faster SAS (Serial Attached SCSI)
• 2005 - Perpendicular recording introduced in consumer HDDs (Toshiba)
• 2006 - First 750 GB hard drive (Seagate)
• 2006 - First 200 GB 2.5" Hard Drive utilizing Perpendicular recording (Toshiba)
• 2006 - Seagate announces research into nanotube-lubricated HDDs with capacities of several terabits per square inch, making possible a 7.5 Terabyte 3.5" HDD[6]
• 2006 - Western Digital produces world's first hard disk with a transparent polycarbonate cover