3RD-PARTY MANAGERS COMBAT PC AMNESIA.Byline: Dwight Silverman Houston Chronicle Trying to tame your personal computer's memory can cause you to lose your mind. Nearly anyone with an IBM-compatible machine has had some kind of sparring match Noun 1. sparring match - a practice or exhibition boxing match boxing match - a match between boxers; usually held in a boxing ring with memory settings. Chances are, you know the chilling feeling that comes from getting an "out of memory" message, combined with the realization that, yes, you're going to have to fiddle with Verb 1. fiddle with - manipulate, as in a nervous or unconscious manner; "He twiddled his thumbs while waiting for the interview" twiddle manipulate - hold something in one's hands and move it your AUTOEXEC.BAT and CONFIG.SYS files. And before you Macintosh folks start your inevitable snickering, let me ask you this - how many of you have never had to mess with the Mac's memory settings? No one is immune, but those who use the MS-DOS/Windows combination for an operating system are more prone to problems. That's because the original IBM personal computer
? IBM 5120 IBM PC Series IBM Personal Computer XT • IBM Portable Personal Computer • IBM PCjr ? The was designed with the idea that 640 kilobytes of random-access memory (storage) random-access memory - (RAM) (Previously "direct-access memory"). A data storage device for which the order of access to different locations does not affect the speed of access. was all anyone would and should ever need. Of course, we've gone way past that barrier. Windows 95 needs at least eight megabytes of RAM to function decently and won't soar until it gets 12 or 16 megabytes. But the original memory design is retained in even the latest systems to ensure that older programs still run. Recent versions of MS-DOS MS-DOS in full Microsoft Disk Operating System Operating system for personal computers. MS-DOS was based on DOS, developed in 1980 by Seattle Computer Products. Microsoft Corp. bought the rights to DOS in 1981, and released MS-DOS with IBM's PC that year. include a memory management module called EMM (Expanded Memory Manager) Starting with 386-based PCs, an EMM is software that converts extended memory (beyond one megabyte) into EMS memory, the first technique used to increase memory in the PC. 386 that helped. Starting with DOS 6.0, Microsoft also included Memmaker, which automated the tedious process of trying to configure memory efficiently. But savvy IBM-compatible owners have relied on better, third-party memory managers to handle this chore. My favorite has long been QEMM (Quarterdeck EMM) A popular DOS and Windows memory manager developed by Quarterdeck that was very popular in the DOS-only days. It also managed memory efficiently under Windows. Symantec, which acquired Quarterdeck in 1999, no longer supports QEMM. from Quarterdeck (Quarterdeck Corporation, Marina del Rey, CA) A pioneering software company, founded in 1983, that offered a variety of utilities, diagnostics, connectivity and Internet products for the PC and Macintosh. . QEMM excels at finding places in high memory to squirrel away drivers and other programs that are launched by DOS and Windows at boot-up. Applications then have more of the original 640 kilobytes of RAM to use, making them faster and more reliable. Now there's a new version of QEMM designed to work with Windows 95. However, Windows 95 makes great strides in how memory is handled - so much so, in fact, that it's questionable whether third-party memory managers are necessary. That might be the case if you only use the latest and greatest 32-bit software designed strictly for Windows 95, or if you have software drivers that automatically install into high memory. But if you're like most people, you probably rely on a lot of older, MS-DOS and Windows 3.1 software, and QEMM can help there. QEMM 8.0 works with MS-DOS, Windows 3.1 and Windows 95. For DOS and Windows 3.1 users, it offers all the benefits of earlier versions as well as new features. For those who use Windows 95, it comes with MagnaRAM 2.0, which compresses data in memory in an attempt to prevent Windows from using slower virtual memory. I'm fairly skeptical of MagnaRAM's claims. I've yet to see it improve the performance of any Windows 95 machine on which I've installed it. But, unlike the now-infamous SoftRAM95, at least it appears to do no harm. |
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