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A disk image, in computing, is a computer file containing the contents and structure of a disk volume or of an entire data storage device, such as a hard disk drive, tape drive, floppy disk, optical disc, or USB flash drive. A disk image is usually made by creating a sector-by-sector copy of the source medium, thereby perfectly replicating the structure and contents of a storage device independent of the file system. Depending on the disk image format, a disk image may span one or more computer files.
IBM PC DOS, an acronym for IBM personal computer disk operating system, is a discontinued operating system for the IBM Personal Computer, manufactured and sold by IBM from the early 1980s into the 2000s.
Multi-booting is the act of installing multiple operating systems on a single computer, and being able to choose which one to boot. The term dual-booting refers to the common configuration of specifically two operating systems. Multi-booting may require a custom boot loader.
PartitionMagic is a utility software for hard disk drive partitioning originally made by PowerQuest, but subsequently owned by Symantec. As of December 8, 2009, the Symantec website stated that they no longer offer Partition Magic.
PowerQuest was a software company that produced utility software. It was acquired by Symantec in 2003. PowerQuest's market focus was on management of computer data storage, especially file systems and disk partitions. Their products included PartitionMagic, DriveCopy, Drive Image, and ServerMagic.
Ghost is a disk cloning and backup tool originally developed by Murray Haszard in 1995 for Binary Research. The technology was acquired in 1998 by Symantec.
Binary Research Ltd was a company founded in Auckland, New Zealand by Murray Haszard in 1991 after the sale of his previous company, B32 Software.
Norton Commander (NC) is a discontinued prototypical orthodox file manager (OFM), written by John Socha and released by Peter Norton Computing. NC provides a text-based user interface for managing files on top of MS-DOS. It was officially produced between 1986 and 1998. The last MS-DOS version of Norton Commander, 5.51, was released on July 1, 1998.
Norton Utilities is a utility software suite designed to help analyze, configure, optimize and maintain a computer. The current version of Norton Utilities is Norton Utilities 16 for Windows XP/Vista/7/8 was released 26 October 2012.
Norton GoBack is a disk utility for Microsoft Windows that can record up to 8 GB of disk changes. When the filesystem is idle for a few seconds, it marks these as "safe points". The product allows the disk drive to be restored to any point within the available history. It also allows older versions of files to be restored, and previous versions of the whole disk to be browsed. Depending on disk activity, the typical history might cover a few hours to a few days.
In computing, data recovery is a process of salvaging (retrieving) inaccessible, lost, corrupted, damaged or formatted data from secondary storage, removable media or files, when the data stored in them cannot be accessed in a usual way. The data is most often salvaged from storage media such as internal or external hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, magnetic tapes, CDs, DVDs, RAID subsystems, and other electronic devices. Recovery may be required due to physical damage to the storage devices or logical damage to the file system that prevents it from being mounted by the host operating system (OS).
PC Tools is a collection of software utilities for DOS developed by Central Point Software.
GParted is a GTK front-end to GNU Parted and an official GNOME partition-editing application. GParted is used for creating, deleting, resizing, moving, checking, and copying disk partitions and their file systems. This is useful for creating space for new operating systems, reorganizing disk usage, copying data residing on hard disks, and mirroring one partition with another.
Microsoft Drive Optimizer is a utility in Microsoft Windows designed to increase data access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique called defragmentation. Defragmenting a disk minimizes head travel, which reduces the time it takes to read files from and write files to the disk. As a result of the decreased read and write times, Microsoft Drive Optimizer decreases system startup times for systems starting from magnetic storage devices such as a hard drive. However, defragmentation cannot be run on storage devices such as solid state drives, USB drives or SD cards that use flash memory to increase speeds, as these drives do not use a head. Defragmentation may decrease lifespan for certain technologies, e.g. solid state drives. Microsoft Drive Optimizer was first officially shipped with Windows XP.
VHD and its successor VHDx are file formats representing a virtual hard disk drive (HDD). They may contain what is found on a physical HDD, such as disk partitions and a file system, which in turn can contain files and folders. They are typically used as the hard disk of a virtual machine, are built into modern versions of Windows, and are the native file format for Microsoft's hypervisor, Hyper-V.
This is a partial comparison list of disk cloning software, computer programs that can copy the contents of one disk into another disk or into a disk image.
Clonezilla is a free and open-source disk cloning, disk imaging, data recovery, and deployment computer program. Clonezilla is designed by Steven Shiau and developed by the NCHC Free Software Labs in Taiwan. Clonezilla SE provides multicast support similar to Norton Ghost Corporate Edition.
A master boot record (MBR) is a special type of boot sector at the very beginning of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The concept of MBRs was publicly introduced in 1983 with PC DOS 2.0.
The classic Mac OS is the series of operating systems developed for the Macintosh family of personal computers by Apple Inc. from 1984 to 2001, starting with System 1 and ending with Mac OS 9. The Macintosh operating system is credited with having popularized the graphical user interface concept. It was included with every Macintosh that was sold during the era in which it was developed, and many updates to the system software were done in conjunction with the introduction of new Macintosh systems.
Macrium Reflect is a backup utility for Microsoft Windows developed by Paramount Software UK Ltd in 2006. It creates disk images and file backup archives using Microsoft Volume Shadow Copy Service to ensure 'point in time' data accuracy. Macrium Reflect can back up whole partitions or individual files and folders into a single compressed, mountable archive file, which can be used to restore exact images of the partitions on the same hard disk for disaster recovery, or a new hard disk for data migration.
