HDD with 1 Ton

Its a hard disk in 1956…. 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.

What is a Hard Disk (HDD)?

Definition: A hard disk is part of a unit, often called a “disk drive,” “hard drive,” or “hard disk drive,” that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces. Today’s computers typically come with a hard disk that contains several billion bytes (gigabytes) of storage.

A hard disk is really a set of stacked “disks,” each of which, like phonograph records, has data recorded electromagnetically in concentric circles or “tracks” on the disk. A “head” (something like a phonograph arm but in a relatively fixed position) records (writes) or reads the information on the tracks. Two heads, one on each side of a disk, read or write the data as the disk spins. Each read or write operation requires that data be located, which is an operation called a “seek.” (Data already in a disk cache, however, will be located more quickly.)

A hard disk/drive unit comes with a set rotation speed varying from 4500 to 7200 rpm. Disk access time is measured in milliseconds. Although the physical location can be identified with cylinder, track, and sector locations, these are actually mapped to a logical block address (LBA) that works with the larger address range on today’s hard disks.

Some brands who produce HDD:

Samsung

Excelsor

WesternDigital

Maxtor

Seagate

Hitachi

Personal i advise you to buy an WesterDigital, i have one and i dont have problems with him! My Pc si opened 24h on 24h with few pauses and my HDD till now when i write this article is in very good condition.

For a good maintenance download HDDLife Pro to view details about your HDD and temperature of it! I found a picture on web with the interface of HDDLife Pro

Ok, now when i finish i want to ask you what HDD do you have?

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