Main Page | See live article | Alphabetical index Conventional Memory are the first 640 kilobytes of an IBM PC's memory. Prior to EMS, XMS, and HMA, real mode application could use only this part of the memory. This article was originally based on material from the Free On-line Dictionary of Computing, used with permission. Update as needed. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.