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Personal computer

About: Personal computer is a research topic. Over the lifetime, 58809 publications have been published within this topic receiving 800814 citations. The topic is also known as: PC.


Papers
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Journal ArticleDOI
TL;DR: A modified PWV estimation algorithm, where only the foot of the pulse-wave in every beat is utilized, seems to have solved the problem and now makes the method suitable for clinical use.
Abstract: The need to investigate the elastic properties of arterial vessels in situ for the early recognition of degenerative disorders in arteries has long been apparent. Pulse-wave diagnostics has been used in traditional medicine, but only in a qualitative way. By measuring the vessel diameter change, simultaneously at two levels along an artery, it should be possible to calculate the pulse-wave velocity (PWV). A newly developed ultrasonic instrument, DIAMOVE, was designed to provide a two-dimensional, real time, B-mode image for display of the exact position of two measurement sites; a computer-controlled digital phased-locked loop detector for the measurement of diameter changes; and a personal computer for the display of the momentary displacement of the artery walls. The cross-correlation technique was used on the information from the vessel wall movements to calculate the resulting PWV. Early measurements on healthy patients showed some unexpected artifacts, which were found to be due to reflected waves, affecting the shape of the pulse-wave at the sites of measurement. A modified PWV estimation algorithm, where only the foot of the pulse-wave in every beat is utilized, seems to have solved this problem and now makes the method suitable for clinical use.

114 citations

Book
01 Feb 2006
TL;DR: In this paper, Markoff explores the role that the counterculture and anti-war movements of the 1960s and 1970s played in the work of these researchers as they created what would later be called the world's largest legal accumulation of wealth.
Abstract: The internet is arguably the largest accumulation of information in one place, yet its own beginnings remain largely undocumented. In researching his recent book, John Markoff collected oral histories from many of the Stanford-area researchers whose technological inventions defined the both modern internet and personal computer. In his talk, Markoff will explore the role that the counterculture and anti war movements of the 1960s and 1970s played in the work of these researchers as they created what would later be called the "world's largest legal accumulation of wealth."

114 citations

Journal ArticleDOI
TL;DR: Turkish EFL teachers have little knowledge about certain software and experience difficulties using the software programs and that they suffer from a lack of technical and instructional support, although they have positive perceptions of computer integration and attitudes toward computer use.
Abstract: While research mainly focuses on the effectiveness of computer use and its contribution to the teaching of English as a foreign language (EFL), EFL teachers have received scant attention. Only a limited number of studies have been conducted regarding Turkish EFL teachers' perceptions of computer use for teaching EFL. Therefore, in the context of Turkish EFL teachers' perceptions of computer usage in learning and teaching, the current study aims to examine Turkish EFL teachers' knowledge of software and their reasons for personal computer use, including the attitudes and perceptions of self-confidence among teachers in integrating computers and the school climate and support with respect to the use of computers for teaching EFL. The sample group in the study consisted of 157 EFL teachers. Before descriptives were computed, a background questionnaire and survey that assessed the degree of knowledge about the computer software, the frequency of software use for personal purposes, the teachers' attitudes towa...

114 citations

Book
25 Feb 2015
TL;DR: From theory to practice, Mobile Learning explores how mobile devices are different than their technological predecessors, makes the case for developers, teachers, and parents to invest in the technology, and illustrates the many ways in which it is innovative, exciting, and effective in educating K-12 students.
Abstract: Explore the game-changing technology that allows mobile learning to effectively reach K-12 students Mobile Learning: A Handbook for Developers, Educators and Learners provides research-based foundations for developing, evaluating, and integrating effective mobile learning pedagogy. Twenty-first century students require twenty-first century technology, and mobile devices provide new and effective ways to educate children. But with new technologies come new challenges therefore, this handbook presents a comprehensive look at mobile learning by synthesizing relevant theories and drawing practical conclusions for developers, educators, and students. Mobile devices in ways that the laptop, the personal computer, and netbook computers have not present the opportunity to make learning more engaging, interactive, and available in both traditional classroom settings and informal learning environments. From theory to practice, Mobile Learning explores how mobile devices are different than their technological predecessors, makes the case for developers, teachers, and parents to invest in the technology, and illustrates the many ways in which it is innovative, exciting, and effective in educating K-12 students. * Explores how mobile devices can support the needs of students * Provides examples, screenshots, graphics, and visualizations to enhance the material presented in the book * Provides developers with the background necessary to create the apps their audience requires * Presents the case for mobile learning in and out of classrooms as early as preschool * Discusses how mobile learning enables better educational opportunities for the visually impaired, students with Autism, and adult learners. If you're a school administrator, teacher, app developer, or parent, this topical book provides a theoretical, well-researched discussion of the pedagogical theory and mobile learning, as well as practical advice in setting up a mobile learning strategy.

114 citations

Patent
03 Nov 1995
TL;DR: The Personal Computer Hard Disk Protection System (20) as mentioned in this paper is designed to protect data stored on computer hard disks (34) while permitting multiple user operation, and prevents unauthorized access to the hard disk controller by software applications, and permits safe servicing of requests which use the BIOS.
Abstract: The personal computer hard disk protection system (20) is designed to protect data stored on computer hard disks (34) while permitting multiple user operation. The personal computer hard disk protection system (20) prevents unauthorized access to the hard-disk controller (32) by software applications, and permits safe servicing of requests which use the BIOS. The basis for the personal computer hard disk protection system (20) functions is the dynamic transformation of the file system to the configuration of the current user. The system (20) is based on a hardware device called the protection-program support module (22) and a set of protection programs (24), most of which is stored in the protection-program support module (22). The protection program support module (22) is an external board and is connected to the computer system bus (58, 60, 62).

114 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202310
202227
2021418
2020954
20191,407
20181,342