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Vor 3 Tagen · A phonograph record (also known as a gramophone record, especially in British English), a vinyl record (for later varieties only), or simply a record or vinyl is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the outside edge and ends near the ...
Vor 4 Tagen · DVD, or digital video disc, type of optical disc used for data storage and as a platform for multimedia. Its most prominent commercial application is for playing back recorded motion pictures and television programs. Learn about the development and uses of DVDs in this article.
- The Editors of Encyclopaedia Britannica
- A DVD is a type of optical disc used for data storage and as a platform for multimedia.
- The acronym DVD stands for “digital video disc” or “digital versatile disc.”
- In 1995 two groups of companies—one led by Sony Corporation and Philips Electronics NV and the other by Toshiba Corporation and Time Warner Inc.—ag...
- A DVD drive uses a laser to read data that have been encoded onto a DVD. Because the DVD laser emits red light at shorter wavelengths than those us...
- DVD region codes are codes that prevent DVDs from being played in a geographic area outside the one they were intended for. The codes are used by e...
20. Mai 2024 · Optic disc drusen (ODD), or hyaline bodies, are a relatively common entity usually found incidentally on CT or on follow-up of abnormal fundoscopy. Epidemiology. Optic disc drusen are identified radiographically in up to 0.3-3.7% of the population and are frequently bilateral 1,4,5.
22. Mai 2024 · Abstract. Optic disc drusen (ODD) are calcified, acellular bodies, seen in the optic nerve head of up to 2% of the population. Although seldomly affecting visual acuity, visual field defects...
Vor 6 Tagen · Blu-ray, optical disc data-storage format that is most often used for playback of high-definition (HD) video. Blu-ray represents the third generation of compact disc (CD) technology, after audio CDs and digital video discs (DVDs). In all three technologies, data is stored on a plastic disc 120 millimetres (4.75 inches) in diameter.
- The Editors of Encyclopaedia Britannica
Vor 4 Tagen · Optic disc edema describes the swelling of nerve fiber layer at the optic nerve head, and it is the consequence of many different pathological processes. Optic disc edema is sometimes mistaken for papilledema because both refer to the swelling of the optic disc.
23. Mai 2024 · The purpose of this study was to evaluate the optic disc and macula in a large cohort of patients with different severity of optic nerve hypoplasia (ONH) using high-resolution spectral domain optical coherence tomography (SD-OCT).
