In optical storage the data is encoded on the disk in the form of tiny pits that are arranged in the concentric rings.
so the answer should be
Optical storage devices focus a tiny pits in concentric tracks on a disk surface that acts as the storage medium.
I Hope it will help you.
Ash is the answer. Hope this helps
Answer: much too long to write here: see attached
Explanation:
<span>Dragging or sizing affects only a "Selected Object." For example, an image, you need to click the image in order for you to select that image. The image is considered as an object. From the time you click on the picture, there are points visible where you can click and drag upon it nor resize.</span>
Answer:A password or a PIN
Explanation: Develetech is a industry that has the a internet page and can also be used in the mobile devices. There is particular authorization that the organization provides to an individual user for accessing of the services to maintain the security .The security is maintained by providing the devices with an encrypted text that is known as the password. The user has to enter the pin or password to execute the service on device.
