How does EMM386 work?
Overview. EMM386. EXE can map memory into unused blocks in the upper memory area (UMA), allowing device drivers and TSRs to be “loaded high”, preserving conventional memory. … Just as the other expanded memory managers, EMM386 uses the processor’s virtual 8086 mode.
What does Himem SYS do?
SYS is a DOS device driver which allows DOS programs to store data in extended memory according to the Extended Memory Specification (XMS). The memory beyond the first 1 MB of address space is required by Windows 9x/Me in order to load; therefore, these versions of Microsoft Windows require HIMEM.
What do u mean by conventional memory?
In DOS memory management, conventional memory, also called base memory, is the first 640 kilobytes of the memory on IBM PC or compatible systems. It is the read-write memory directly addressable by the processor for use by the operating system and application programs.
Where is Smartdrv EXE located?
The file smartdrv.exe is located in the C:\Windows\System32 folder.
Where is Himem SYS located?
Note: While this file is only located in the Windows directory, it may also to be located in the root or DOS directory. If when typing any of the above commands you receive a prompt that the file already exists, ensure to overwrite it.
What is config sys file?
CONFIG. SYS is a configuration file on DOS systems. It is a text file that contains the settings and commands to load drives in a DOS system. This is a primary configuration file for OS/2 and DOS OS. This file was introduced in DOS and is replaced for 32-bit Windows versions with CONFIG.
How do you increase conventional memory for MS-DOS based programs?
Here are a few tips:
- Do use DOS=HIGH,UMB. This moves 64K of DOS out of conventional memory, and it doesn’t use any upper memory either!
- Do use DEVICE=C:\DOS\HIMEM. SYS. DOS can’t move anything out of conventional memory without it.
- Do use EMM386. EXE. This allows you to use the upper memory area.
Should you be enough for anybody?
Here’s the legend: at a computer trade show in 1981, Bill Gates supposedly uttered this statement, in defense of the just-introduced IBM PC’s 640KB usable RAM limit: “640K ought to be enough for anybody.”
Is Smartdrv sys a device driver?
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. … SYS device driver named SMARTDRV.
What does Autoexec bat do?
The AUTOEXEC. BAT file is used to set defaults and to run programs that should be executed upon startup (comparable to the . login file on Unix accounts).
How do I edit config in DOS?
Configurations vary, so check which version of DOS your company is using.
- Press “Windows-R” to open the Run menu. …
- Type “cd\” and press “Enter.” Type “edit config. …
- Type in the configuration options for your Config.sys file. …
- Add any devices you need to load to Config.
How do I edit config sys?
Configurations vary, so check which version of DOS your company is using.
- Press “Windows-R” to open the Run menu. …
- Type “cd\” and press “Enter.” Type “edit config. …
- Type in the configuration options for your Config.sys file. …
- Add any devices you need to load to Config.
Does Windows 10 use config sys?
Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10 do not have or use the config. sys file. This file has been replaced by the Windows registry.
What type of memory is needed to exceed the memory of the DOS?
Extended memory, also known as XMS (eXtended Memory Specification) is a technology that enables capacity above the 640KB standard MS-DOS limit of main memory.
How much memory does MS-DOS use?
A DOS program could only access memory using 64 KB segments. No matter how much physical memory you had, conventional memory was limited to 640 KB. This is in large part due to IBM’s design of the 8088 in 1984.
Did Bill Gates say 640K is enough?
640K ought to be enough for anyone. The term 640K refers to 640 kilobytes of computer memory. … This quote is notorious among computer enthusiasts and is typically dated to 1981, but Bill Gates has denied that he ever said it.
How much RAM did Bill Gates say enough?
640KB
Bill Gates denies making 1981 comment about limits of RAM needs, despite popular legend. Here’s the legend: at a computer trade show in 1981, Bill Gates supposedly uttered this statement, in defense of the just-introduced IBM PC’s 640KB usable RAM limit: “640K ought to be enough for anybody.”
Is Autoexec bat still used?
bat today. Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10 do not have or use the autoexec. bat file. Instead, all versions of Windows now use the registry.