An optical storage device is an electro-mechanical unit that can save and retrieve (write and read) information on a special disc medium using a laser light. Optical drives are designed to work with several types of media: CDs ("compact disc"), DVDs (digital versatile disc" or "digital video disc") and Blu-ray discs.
Disk storage devices are most commonly used in personal computers as a means to enhance memory. The most common are hard disk drives, optical disk drives, and even zip drives.
An optical storage device is an electro-mechanical unit that can save and retrieve (write and read) information on a special disc medium using a laser light. Optical drives are designed to work with several types of media: CDs ("compact disc"), DVDs (digital versatile disc" or "digital video disc") and Blu-ray discs.
OCR devices
Optical mouse: Most desktop computer users today have some type of optical mouse, which uses devices that emit and sense light to detect the mouse's movement.
All information on computers (and other electronic as well as most optical storage devices) is stored and processed in binary form. This may be bits that are either magnetised or not magnetised in electronic storage, or pits and bands in optical devices. This one-or-the-other is a means of coding information in a binary fashion.
In most cases same type of devices used for primary storage - hard drives.
hard disk
This is a very general question. There are many types of data storage devices, but the most common storage device that holds data instructions and information we think about today in the modern personal computer is the Hard Disk Device (HDD).The HDD is an example of a magnetic storage media. Other example are tape drives, and floppy disks. Other types of storage are Optical (CD's and DVD's) and solid state devices like flash drives.
system unit
Most devices in this industry use lenses. Some products, however, do not utilize lenses
More common terms for digital optical audio cable; optical audio cable, cable, digital optical, but the shortest and most well-known term is "cable".
The visible spectrum, which includes colors from red to violet, is typically used for optical devices because it is most effective for the human eye. This spectrum covers the range of wavelengths that our eyes can perceive most easily, making it suitable for a wide range of applications from displays to imaging technologies.