5MB Harddisk !

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5 MB Harddisk !!!!

The Volume and Size of 5MB memory storage in 1956.

In September 1956 IBM launched the 305 RAMAC, the first computer with a
hard disk drive (HDD). The HDD weighed over a ton and stored 5MB of data.

The IBM 350 Disk Storage Unit provides storage capacity of the disk drive
was 5MB (referred to at the time as 5 million characters). It was configured
with 50 magnetic disks containing 50,000 sectors, each of which held 100
alphanumeric characters.







Nếu giả sử kích thước tỉ lệ thuận với dung lượng, thì mấy con ổ vài trăm GB bây giờ cứ gọi là :-& :-O