CRAM


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Wikipedia.

CRAM

(1) (Chalcogenide RAM) See phase change memory.

(2) (Card Random Access Memory) An early magnetic card mass storage device from NCR that was made available on its 315 computer systems in 1962. It offered reasonably reliable random access storage at a time when magnetic tapes with sequential access were the primary storage medium.

A Mechanical Wonder
CRAM used a removable cartridge housing a deck of 3x14" cards with a magnetic recording surface. There were initially 256, and later 512, cards in the deck, providing 5.5MB and 11MB of storage. With a roomful of 16 units connected to the computer, the total storage capacity was 176 megabytes, a rather large amount of random access capacity for that era.

With air blowing over them to keep them apart, the notched cards were suspended from eight rods that were selectively moved to release a specific card. The card was dropped and wrapped around a rotating drum using air pressure. After reading or writing, it was returned to the cartridge. Every once in a while, two cards dropped at the same time, causing a loud halt to the operation. See RACE and Data Cell.


CRAM Units
NCR's CRAM was a successful addition to its computer line, offering reliable random access during the 1960s. By the end of the decade, magnetic disks were becoming mainstream. (Image courtesy of NCR Corporation.)
References in periodicals archive ?
Cram said the race, the seventh year it's been held, is on course to be the biggest yet - with 4,000 competitors confirmed.
CRAM brings together strands of biomedical science which have come of age over the last decade including glycoscience, biomaterials science, regenerative medicine and tissue engineering, drug delivery and medical device design.
Cram paid tribute to scottishathletics' Club Together programme which was set up to find new athletes.
In January, the program expanded to 18 elementary schools, and Cram hopes to serve all 24 elementary schools by the beginning of the 2012-2013 school year.
Cram said: "People are waking up to the fact Laura is a contender for the team which is great.
Since 2001, The Cram Group is a leading Consulting, Hosting, and Software Development services provider focused on the Architecture, Engineering and Construction Industry.
Cram said: "Recreational drugs are not the same as someone who has systematically tried to cheat to win.
Cram, nicknamed the 'Jarrow Arrow', stressed the importance of personal goal setting, mentoring and coaching.
Twice, cram down legislation had passed the House and appeared headed toward becoming law, only to fail in the Senate on both occasions in February 2008 and April 2009.
I like Pinsent but he doesn't know anything about ice hockey either so why on earth the BBC stuck him opposite the hapless Cram is anybody's guess.
Neither Cram nor sidekick Rhona Martin were on the edge of their seats as confirmed by an unforgiving BBC camera which swung their way just as he said it, revealing the pair in full recline mode and showing no sign of inching forward towards the precipice that the ex-middle distance man had alluded to.
SIR - It seems to me that Dr Alan Cram is trying to prevent an open discussion among readers by requesting you to ban letters by people he does not agree with.