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About 10,000 papers for “Computer data storage”

Computer Memory and Data Storage

Azam Seyedi · IntechOpen eBooks · 2023

<i>Computer Memory and Data Storage</i> presents a comprehensive exploration of the intricacies of memory design, delving into the challenges and advanced techniques involved in optimizing power consumption, performance, reliability, and data integrity. The chapters provide a complete understanding of modern memory technologies, ranging from radiation-hardened memory for space applications to diverse memory designs and their trade-offs.

Cited by 0Open access

Computer storage of contour-map data

Stephen P. Morse · 1968

Contour maps have many engineering applications. Besides the common use of contour maps to represent elevation of a geographic region, they are frequently used to represent different types of weather information. Examples are isobars to connect points of equal pressure and isotherms to connect points of equal temperature in a geographic region. An example of using a contour map to represent a variable that is a function of something other than geographic position is a plot of equalloudness curves as a function of intensity and frequency of an audible tone. Contour maps are also used to represent data defined by an equation. In such cases the contour map facilitates visualization of the data. An example of this is a plot of the equipotential lines around an electric dipole.

Cited by 14

Binary computer-generated-hologram-basedholographic data storage

Naru Yoneda, Saita, Yusuke, Nomura, Takanori · Figshare · 2019

Conventional computer-generated-hologram-based holographic data storage (CGH-HDS) needs to use a multi-level modulatable spatial light modulator (SLM). A binary SLM usually has a higher refresh rate than a multi-level one and it enables HDS to increase a data transfer rate. To increase the data transfer rate by using a binary SLM, the introduction of a binary CGH is proposed. In general, a binary CGH degrades the image quality of reconstructed intensity distribution and emphasizes high spatial frequency components of datapages. In the proposed method, reconstructed intensity distributions which satisfy image quality as datapages can be obtained with low-pass filtering with an aperture at a plane of a recording medium. The optimum size of an aperture is numerically evaluated. The proposed method is experimentally verified. Moreover, the proposed method can achieve single and multiplexed recording three datapages by a spherical reference beam with a binary CGH.

Cited by 0Open access

Fault-tolerant computer system of data storage

МГТУ им. Н.Э. Баумана, И.В. Баскаков, А.Ю. Головин et al. · Engineering Journal Science and Innovation · 2013

Одновременно с ростом объема хранимых данных с каждым годом растут требования по уровню их доступности и бесперебойной работе приложений.Возникает непростая задача: как сохранить огромные объемы информации в рабочем состоянии?Статья посвящена поиску решения задачи создания компьютерной системы хранения конфиденциальных данных значительного

Cited by 0

Binary computer-generated-hologram-basedholographic data storage

Naru Yoneda, Saita, Yusuke, Nomura, Takanori · Figshare · 2018

Conventional computer-generated-hologram-based holographic data storage (CGH-HDS) needs to use a multi-level modulatable spatial light modulator (SLM). A binary SLM usually has a higher refresh rate than a multi-level one and it enables HDS to increase a data transfer rate. To increase the data transfer rate by using a binary SLM, the introduction of a binary CGH is proposed. In general, a binary CGH degrades the image quality of reconstructed intensity distribution and emphasizes high spatial frequency components of datapages. In the proposed method, reconstructed intensity distributions which satisfy image quality as datapages can be obtained with low-pass filtering with an aperture at a plane of a recording medium. The optimum size of an aperture is numerically evaluated. The proposed method is experimentally verified. Moreover, the proposed method can achieve single and multiplexed recording three datapages by a spherical reference beam with a binary CGH.

Cited by 0Open access

Computer Data Storage and Management Platform Based on Big Data

Cheng Luo · Journal of Physics Conference Series · 2021

Abstract Due to the continuous development of information technology, data has increasingly become the core of the daily operation of enterprises and institutions, the main basis for decision-making development. At the same time, due to the development of network, the storage and management of computer data has attracted more and more attention. Aiming at the common problems of computer data storage and management in practical work, this paper analyzes the object and content of data management, investigates the situation of computer data storage and management in China in recent two years, and interviews and tests the data of programming in this design platform. At the same time, in view of the related problems, the research results are applied to practice. On the basis of big data, the storage and management platform is designed. The research and design adopts a special B+ tree node linear structure of CIRC tree, and the linear node structure is changed into a ring structure, which greatly reduces the number of data persistence instructions and the performance overhead. The results show that compared with the most advanced B+ tree design for nonvolatile memory, crab tree has 3.1 times and 2.5 times performance improvement in reading and writing, respectively. Compared with the previous NV tree designed for nonvolatile memory, it has a performance improvement of 1.5 times, and a performance improvement of 8.4 times compared with the latest fast-fair. In the later stage, the expansion of the platform functions is conducive to the analysis and construction of data related storage and management functions, and further improve the ability of data management.

Cited by 3Open access

COMPUTER STORAGE AND ANALYSIS OF CONTOUR MAP DATA.

MORSE,S. P. · Defense Technical Information Center (DTIC) · 1965

This report describes a method for storing and analyzing contour map data in a digital computer. The data is stored in the so-called contour-line-storage form. This form represents the contour lines in terms of sequences of octally encoded, short, straight-line segments. Algorithms can be developed to analyze the data directly in this form. In some cases, however, it may be advantageous first to convert the data into a form more suitable for the particular analysis. In this report, algorithms are described for locating the ground profile of a given path on a map, generating the gradient at a point on the map, and finding the volume between two elevations. As an illustration, some of the algorithms are applied to the problem of locating the ground track of an aircraft from the pilot's record of heading and altitude vs. time. This problem envolves selecting certain ground tracks as 'likely candidates,' generating the ground profile for each of these tracks, comparing these ground profiles with the pilot's record of altitude vs. time, and then selecting the candidate that most closely agrees with the pilot's record. (Author)

Cited by 1