Fifty years of IBM innovation with information storage on magnetic tape

Bradshaw, Richard L.; Schroeder, C.

doi:10.1147/rd.474.0373

Cited by 8 publications

(6 citation statements)

References 9 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This was a fully implemented drive, complete with vacuum columns (the equivalent to tension arms on an audio machine, and implemented on a few high-end video machines) to allow rapid tape acceleration under program control. These machines recorded seven (later nine) tracks on 12.7 mm (half-inch) tape on 270 mm (10.5 in) reels [8], although their hubs were incompatible with the familiar NAB audio tape hub 8 [9].…”

Section: Data Tapementioning

confidence: 99%

Chemistry for Audio Heritage Preservation: A Review of Analytical Techniques for Audio Magnetic Tapes

Bressan

Hess²,

Sgarbossa

et al. 2019

Heritage

View full text Add to dashboard Cite

Vast and important cultural resources are entrusted to magnetic tape around the world, but they are susceptible to degradation, which may lead to severe replay problems. Audio magnetic tapes are complex and multicomponent devices containing organic compounds and metal systems, which can be potential catalysts for many degradative reactions in the presence of water, light, or heating. The aim of this review is to collect the literature concerning the analytical determinations and instrumental approaches that can achieve the chemical identification of the components in the tape and the degradation state. Thus, a combination of destructive (such as acetone extraction) and non-destructive techniques (such as ATR FTIR spectroscopy) have been proposed, together with SEM, ESEM, XRD and TGA analyses to assess the chemical and physical characterization of the tape with the purpose to individualize restoration treatments and optimize conditions for preservation. The impact of the studies reviewed in this paper may go beyond audio, being potentially relevant to video, data, instrumentation, and logging tapes.

show abstract

Section: Data Tapementioning

confidence: 99%

Chemistry for Audio Heritage Preservation: A Review of Analytical Techniques for Audio Magnetic Tapes

Bressan

Hess²,

Sgarbossa

et al. 2019

Heritage

View full text Add to dashboard Cite

show abstract

“…Typical applications are already in progress, such as several crossbar approaches [29]- [46] that will allow us to construct molecular memories and logic, hopefully at extremely lower fabrication costs. On the other hand, magnetic storage devices, in which magnetic states are used to store information permanently, are also being developed [47]- [58].…”

Section: Aren't Computers Fast Enough?mentioning

confidence: 99%

The Nanocell: A Chemically Assembled Molecular Electronic Circuit

Seminario

Tarigopula

2006

IEEE Sensors J.

View full text Add to dashboard Cite

Computing is one of the most demanding applications of integrated circuits (IC). It requires the highest possible speed to process information. Higher speeds imply smaller circuits and, therefore, higher densities of integration. Thus, the most effective way to make faster circuits is by "scaling down," i.e., reducing the device size proportionally. However, under present technology, miniaturization is mainly constrained by the amount of heat dissipated as the number of devices increases per unit area and by the ability of lithographic tools to chisel smaller details on bulk substrates; these are technical constraints. However, there are physical or natural constraints which are practically material independent (speed of light, size of atoms, response of the electron, and Planck constant). Two main scenarios have been proposed for using molecules or small group of atoms (clusters) to build devices able to perform logical operations, bypassing, to some extent, problems undermining miniaturization or scaling-down processes for IC. One approach is the crossbar; a promising technology that uses directed self-assembly to make nanoarrays similar in shape to those already fabricated at larger scales by standard electronics. The other approach is the nanocell, which is a complementary design in the sense that it builds up (bottom-up) from single molecules into precise and complex structures that can be approached by standard lithography. This paper focuses on the description, advances, and possibilities of the nanocell approach, which takes advantage of the great skills developed by chemists to synthesize molecules with precise arrangements of atoms in a molecule. The nanocell concept does not require a deterministic assembly or deposition of molecules and clusters, thanks to the recently discovered programmability feature of molecules. Thus, in this paper, it is shown that the nanocell is a feasible concept for the development of electronics beyond deterministic lithographic approaches presently used in the fabrication of IC. The great importance and advantage of having molecular size computing devices is their ability to interact directly with external agents or molecules producing a sensor device already attached to a nanoprocessor that is able to strongly help in the stand-off detection of chemical and biological agents.

show abstract

“…• Magnetic tape storage stores the data by switching the magnetization of small ferromagnetic particles on a long strip fitted into a 12 cm cartridge. Recent developments showed cartridges of one terabyte that can be read out at 35 Mb/s [4]. The main disadvantage over other storage types is that it can only be read out sequentially.…”

Section: Removable Storagementioning

confidence: 99%

“…In het Engels: flash memory2 In het Engels: compact disc3 In het Engels: digital versatile disc4 In het Engels: high definition DVD5 In het Engels: blu-ray disc…”

unclassified

Performance analysis of a multimode waveguide-based optical disk readout system

2004

View full text Add to dashboard Cite

We propose a method to improve the optical resolution to read out optical disks, without making the spot size on the disk smaller than the diffraction limit. The idea is to reconstruct the bit pattern from the complete field profile (including amplitude and phase) of the light reflected from the disk. We measure the phase and amplitude information by picking up the wave front into different modes of a bimodal waveguide. Once picked up, these modes can be split by a photonic integrated circuit to be measured by separate detectors. By combining the information from the responses from the different modes, we can improve the bit error rate substantially.

show abstract

Fifty years of IBM innovation with information storage on magnetic tape

Cited by 8 publications

References 9 publications

Chemistry for Audio Heritage Preservation: A Review of Analytical Techniques for Audio Magnetic Tapes

Chemistry for Audio Heritage Preservation: A Review of Analytical Techniques for Audio Magnetic Tapes

The Nanocell: A Chemically Assembled Molecular Electronic Circuit

Performance analysis of a multimode waveguide-based optical disk readout system

Contact Info

Product

Resources

About