The replication of data to two or more disks. Disk mirroring is a good choice for applications that require high performance and high availability such as transactional applications, email, and operating systems.

The first widely-installed operating system for personal computers. DOS was (and still is) a non-graphical line-oriented command- or menu-driven operating system, with a relatively simple interface but not overly "friendly" user interface. 

Disk Partitioning is an act of dividing the hard disk storage space into separte logical data areas often called as partitions. One can use a partition editor program to create, modify and delete a partition. Partitioning allows machines to improve disk efficiency. The FAT system used by operating systems automatically allocates the cluster size based on the disk size.

The process of dividing a body of data into blocks and spreading the data blocks across several partitions on several hard disks. Each stripe is the size of the smallest partition.

An approach to hybrid cloud backup that involves using local storage for staging data that will eventually be sent to a third-party cloud storage service provider. The backup is stored on local disk first so it can be captured at high speed. 

An approach to computer storage backup and archiving in which data is initially copied to backup storage on a disk storage system and then periodically copied again to a tape storage system.

A random access, removable data storage medium that can be used with personal computers. The term usually refers to the magnetic medium housed in a rigid plastic cartridge measuring 3.5 inches square and about 2millimeters thick. 

A command-line utility used to manipulate disk partitions in all versions of Windows and Windows Server beginning with Windows XP and Windows Server 2003. Diskpart can be used to convert a basic disk to a dynamic disk, or vice versa. 

A.k.a. graphics card, video card, video board, is an integrated circuit card in a computer or a monitor that provides digital-to-analog conversion, video RAM, and a video controller so that data can be sent to a computer's display. 

A network designed so that temporary or intermittent communications problems, limitations and anomalies have the least possible adverse impact. 

A disruptive technology or disruptive innovation is an innovation that improves a product or service in ways that the market does not expect, typically by being lower priced or designed for a different set of consumers. Products based on disruptive technologies are typically cheaper to produce, simpler, smaller, better performing, and, frequently, more convenient to use.

The oldest routing protocol that has been used to support multicast data transmission over networks. The protocol sends multicast data in the form of unicast packets that are reassembled into multicast data at the destination.

Computing is said to be "distributed" when the computer programming and data that computers work on are spread out over more than one computer, usually over a network. 

A way to efficiently distribute wireless connections inside a large building where steel columns and layers of concrete can interfere with wireless signals. A DAS can be used to get rid of "dead zones".

In general, distributed computing is any computing that involves multiple computers remote from each other that each have a role in a computation problem or information processing.

An industry-standard software technology for setting up and managing computing and data exchange in a system of distributed computers. DCE uses the client/server model. Using DCE, application users can use applications and data at remote servers.