System architecture was documented in the 305 RAMAC Manual of Operatio... -
ibm 305 ramac

System architecture was documented in the 305 RAMAC Manual of Operatio...

wikipedia - 13 Sep 2016
System architecture was documented in the 305 RAMAC Manual of Operation. The 305 was a character-oriented variable "word" length decimal (BCD) computer with a drum memory rotating at 6000 RPM that held 3200 alphanumeric characters. A core memory buffer of 100 characters was used for temporary storage during data transfers.
ibm 305 ramac

Correction: Emil Hopner, Nazi hunter and computer scientist

The Mercury News - 10 Jan 2018
An article posted on Dec. 29 misidentified some of the work done in IBM's San Jose Almaden Research Center in the mid-1950s. A group at that center designed the IBM 305 RAMAC, the first computer to incorporate a disk drive for data storage. Emil Hopner ...
ibm 305 ramac

South Africa's first computers

MyBroadband - 27 Jul 2015
IBM told MyBroadband that the first IBM 305 RAMAC in South Africa was delivered to a brokerage firm in 1959. The IBM 305 RAMAC (Random Access Method of Accounting and Control) was the first commercial computer that used a moving-head hard disk ...
ibm 305 ramac

Tech Time Warp of the Week: The World's First Hard Drive, 1956

Wired - 03 Jan 2014
This seminal hard drive was part of a larger machine known as the IBM 305 RAMAC, short for "Random Access Method of Accounting and Control," and in the classic promotional video below, you can see the thing in action during its glory days. Better yet ...
ibm 305 ramac

hard disk

TechTarget - 04 Apr 2018
In 1953, IBM engineers created the first hard disk, which was the size of two refrigerators. The company then shipped the first commercial hard disk-based computer, the 5 MB IBM 305 RAMAC (random access method of accounting and control) in 1956.
ibm 305 ramac

A New Show at MOMA Explores the Ghosts in Our Machines

Village Voice - 02 Dec 2017
Begin with a trio of white, salmon, and yellow IBM punch cards from 1956, each with its own grid of numbers and an esoteric pattern of rectangular punch-outs — secret messages from the payroll or inventory departments. Nearby, an “IBM 305 RAMAC ...
ibm 305 ramac

CW@50: Data storage goes from $1M to 2 cents per gigabyte (+video)

Computerworld - 23 Mar 2017
Created as high-speed storage for the IBM 305 RAMAC system, the IBM 350 weighed about a ton. It was 68 inches tall and 29 inches wide. Though it had to be transported with a forklift, it was revolutionary; it stored more data than any previous system ...
ibm 305 ramac

MoMA: Thinking Machines as Art

PCMag - 31 Jan 2018
A couple of weeks ago, I had the opportunity to join my friends in the New York CTO Club for a tour of a new exhibit entitled "Thinking Machines: Art and Design in the Computer Age, 1959-1989." In this exhibit, curators have juxtaposed early computers ...
ibm 305 ramac

Visualizing the Trillion-Fold Increase in Computing Power

Visual Capitalist (blog) - 06 Nov 2017
In the 1970s, data storage equipment was serious business. The IBM 305 RAMAC, for example, weighed a ton and measured 16 square feet. The RAMAC's storage capacity? Just 5MB. Thankfully, hard disks are no longer the size of filing cabinets.
ibm 305 ramac

Tech Tuesday: 1956 Hard Disk Drive vs. 2013 Flash Drive - 18 Jun 2013
ABOVE VIDEO: IBM 305 RAMAC. IBM introduces its 305 RAMAC and 650 RAMAC machines. The first to use a magnetic hard disk for data storage, RAMAC technology becomes an industry standard. The storage capacity of the 305's 50 two-foot-wide disks ...
ibm 305 ramac

Is This the First Time Anyone Printed, 'Garbage In, Garbage Out'?

Atlas Obscura - 14 Mar 2016
Three years later a print book appeared, in its second edition, confirming that Fuechsel had indeed coined the term, and that he was an IBM 305 RAMAC instructor. In 2011 that book was added as a footnote to the Wikipedia page. Citation no longer needed.
ibm 305 ramac

The Storage Engine

Forbes - 18 Mar 2016
introduced the first digital hard disk drive, which was the storage system in the IBM 305 RAMAC computer system. This 3.75 MB device had 50 twenty-four inch diameter disks addressed by one set of heads. Over the course of time the density of ...
ibm 305 ramac

The evolution of hard disk drives

PC World Magazine - 07 Jan 2011
IBM 350 Disk Storage Unit The 350 Disk Storage System was a major component of the IBM 305 RAMAC (Random Access Method of Accounting and Control) system, which was introduced in September 1956. It consisted of 40 platters and a dual read/write ...
ibm 305 ramac

Million-Year Data Storage Disk Unveiled

MIT Technology Review - 22 Oct 2013
Back in 1956, IBM introduced the world's first commercial computer capable of storing data on a magnetic disk drive. The IBM 305 RAMAC used fifty 24-inch discs to store up to 5 MB, an impressive feat in those days. Today, however, it's not difficult to ...

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