SmartDrive
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| SmartDrive | |
|---|---|
| [[Programmer|DeveloperTemplate:Pluralize from text]] | Microsoft |
| Initial release | November 1988 |
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| Operating system | MS-DOS, Windows |
| License | Proprietary commercial software |
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SmartDrive (or SMARTDRV) is a disk caching program shipped with MS-DOS versions 4.01 through 6.22 and Windows 3.0 through Windows 3.11.[1] It improves data transfer rates by storing frequently accessed data in random-access memory (RAM).[2]
Early versions of SmartDrive were loaded through a Page Template:Mono/styles.css has no content.CONFIG.SYS device driver named Page Template:Mono/styles.css has no content.SMARTDRV.SYS.[1] Versions 4.0 and later were loaded through an executable file named Page Template:Mono/styles.css has no content.SMARTDRV.EXE, which could be run at user's discretion or at boot time via Page Template:Mono/styles.css has no content.AUTOEXEC.BAT.[1] However, Page Template:Mono/styles.css has no content.SMARTDRV.EXE also includes a double-buffering driver that should be loaded through Page Template:Mono/styles.css has no content.CONFIG.SYS.[2] Version 4.0 also introduced 32-bit disk access and could reduce its footprint in conventional memory (the first 640 kilobytes of memory which is critical to MS-DOS) by running in upper memory area (the 384 kilobytes of memory located beyond the conventional memory).[2]
A cloaked variant of SmartDrive utilizing the Helix Cloaking API was available from Helix Software. On Intel 80386 processors, it can run in protected mode to reduce its footprint in conventional memory.
Microsoft suggests SmartDrive to be used when installing Windows 2000 or Windows XP from MS-DOS to reduce installation time.[3]
SmartDrive has been superseded by VCache, which was introduced in Windows for Workgroups 3.11 and carried over to Windows 95, Windows 98/Windows 98 SE and Windows Me. The main advantage of VCache over SmartDrive is its ability to adjust cache size dynamically. However, it tended to take too much RAM in Windows 95; this aspect was improved in Windows 98.
See also
References
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- ^ a b c Page Module:Citation/CS1/styles.css has no content."SMARTDrive Version History (Revision 2.1)". Support. Microsoft. 7 July 2005. Archived from the original on 3 April 2008. Retrieved 17 June 2013.
- ^ a b c Page Module:Citation/CS1/styles.css has no content."SMARTDrive and 32-Bit Disk Access (revision 1.1)". Microsoft Support. Microsoft. 16 November 2006. Archived from the original on 16 July 2012. Retrieved 17 June 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."How to start the Setup program from MS-DOS in Windows XP (revision 6.0)". Support (5.5 ed.). Microsoft. 22 May 2013. Archived from the original on 7 January 2013. Retrieved 17 June 2013.
