Introduction To IT - Peripheral Devices

A peripheral device is a device that is used to input or output information from a computer. It is an external device that connects to the computer and allows users to interact with it. Examples of peripheral devices include keyboards, mice, printers, scanners, and external storage devices like pen drives and hard disks. These devices expand the functionality of the computer by providing additional input or output options, enhancing the user experience.

In the context of tracks, sectors refer to the divisions or parts within each track. Sectors are used to organize and store data on a storage device such as a hard disk drive. Each sector typically contains a fixed amount of data, and the number of sectors on a track can vary depending on the storage device. By dividing the track into sectors, it becomes easier to locate and access specific data on the storage device.

A magnetic disc surface is divided into concentric rings known as tracks. Each track represents a circular path on the disc where data can be stored. The tracks are arranged one after another, forming concentric circles from the center of the disc to the outer edge. The data is stored in sectors within each track. By dividing the disc into tracks, it allows for efficient organization and retrieval of data on the magnetic disc surface.

All tracks which can be accessed without moving the read/write heads are called cylinders. In a disk storage system, a cylinder refers to a group of tracks that are located at the same position on different surfaces of the disk. When the read/write heads are positioned on one track of a cylinder, all the tracks in that cylinder can be accessed without moving the heads, resulting in faster data retrieval. Cylinders are used to organize and optimize data storage on disk drives.

DVD stands for Digital Versatile Disc. This acronym refers to a type of optical disc storage media that is used for various purposes, such as storing and playing back digital audio, video, and other data. The term "versatile" highlights its ability to handle different types of content, making it a popular format for movies, music, and computer software. The term "digital" emphasizes its digital nature, as opposed to analog formats like VHS tapes. Overall, DVD is a widely recognized and used technology for entertainment and data storage.

A Daisy wheel printer is an impact printer that uses a wheel with characters on its spokes to strike against an inked ribbon and transfer the character onto the paper. Therefore, the correct answer is Daisy wheel as it is an impact printer and not an example of a non-impact printer.

Usually, any form of storage that ends with 'disk' is magnetic whiles those that end with 'disc' is usually optical. Find out more here;
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