An optical drive, or more accurately an optical disk drive (ODD) is medium for storing digital data. Examples are CD, DVD and blu-ray. The characteristic of an optical drive system is that beams of light (typically laser) are used to read the medium.
The purpose of secondary memory is storage of data that is not immediately needed for processing by the CPU. Examples of secondary devices are hard drives and optical drives.
A Molex Connector connects to optical drives and hard drives.
CD and DVD disks are used by optical disc drives.
An optical drive is for reading and possibly writing to optical media such as a CD or DVD. It is pretty much used like any other drive in a computer. Older optical drives could only read data and could not burn disks.
According to http://www.answers.com/optical+drives, David Paul Gregg developed an analog optical disc for recording video and patented it in 1961 and 1969.
It is called an optical drive because the mechanism for reading and writing information is optical (light) based - it uses lasers.
They can also be external.
Monitors, Printers, NIC's, Hard Drives can be both, and optical drives.
You can find more information on optical drives on internet review sites or blog post made by users. More information can also be found at local stores.
A recording medium is used to store data, such as audio, video, or text information. It can come in various forms, such as magnetic tape, optical discs, flash drives, or hard drives. The purpose of a recording medium is to preserve and playback information for future use.
They don't. All earth bound telescopes, optical or not, must deal with a number of issues. But what do you mean by "better"? A radio telescope is better suited to pick up radio waves than an optical telescope, but an optical telescope is better for visible light. They each serve their purpose better than the other.
CD's, DVD's, hard drives,etc.