IBMBIO.COM is a system file in many DOS operating systems. It contains the system initialization code and all built-in device drivers. It also loads the...
35 KB (3,482 words) - 00:12, 7 September 2023
the whole IBMBIO.COM file into memory before it executes it. It does not care at all about the IBMDOS.COM file, which is loaded by IBMBIO.COM. […] The...
32 KB (3,378 words) - 02:54, 25 March 2025
IBMDOS.COM is the filename of the IBM PC DOS and DR-DOS kernel. Loaded and initially invoked by the DOS BIOS in IBMBIO.COM during the boot process, it...
6 KB (670 words) - 05:30, 29 September 2024
the whole IBMBIO.COM file into memory before it executes it. It does not care at all about the IBMDOS.COM file, which is loaded by IBMBIO.COM. […] The...
100 KB (11,298 words) - 07:35, 10 May 2025
DR DOS 5.0 and above, the DOS system files are named IBMBIO.COM instead of IO.SYS and IBMDOS.COM instead of MSDOS.SYS. Older versions of DR DOS used DRBIOS...
56 KB (6,507 words) - 04:13, 20 May 2025
DR-DOS (redirect from IBMBIO.LDR)
purposes, the DR DOS 5.0 system files were now named IBMBIO.COM (for the DOS-BIOS) and IBMDOS.COM (for the BDOS kernel) and due to the advanced loader...
121 KB (12,096 words) - 22:17, 9 May 2025
PC DOS (like having to use certain misleading filenames such as IBMBIO.COM, IBMDOS.COM or COUNTRY.SYS for files which do not follow the specs for executables...
17 KB (1,520 words) - 06:56, 13 April 2025
directives evaluated by the operating system's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot. CONFIG.SYS was introduced with DOS 2.0. The directives...
67 KB (7,088 words) - 16:08, 3 February 2025
Fat binary (redirect from FATBNSEA.COM)
PC DOS and DR-DOS system files IBMBIO.COM and IBMDOS.COM are special binary images loaded by bootstrap loaders, not COM-style programs. Trying to load...
93 KB (9,322 words) - 03:36, 31 July 2024
extended partition type are processed. Some late versions of the DR-DOS IBMBIO.COM provide a preboot config structure, holding bit flags to select (beside...
28 KB (3,436 words) - 05:09, 1 January 2025
two directory entries in the file system and the first three sectors of IBMBIO.COM to be stored at the start of the data area in contiguous sectors containing...
41 KB (4,981 words) - 15:26, 16 March 2025
COM.[citation needed] List of DOS commands Comparison of command shells cmd.exe — command-line interpreter in various Windows and OS/2 systems IBMBIO...
27 KB (2,735 words) - 20:22, 11 March 2025
SYS (command) (redirect from Sys.com)
system files, that is, the DOS-BIOS (IO.SYS or IBMBIO.COM) and the DOS kernel (MSDOS.SYS or IBMDOS.COM) into the root directory of the target. Due to...
13 KB (944 words) - 20:51, 13 November 2024
Environment variable (redirect from Dynamic environment variable (COMMAND.COM))
currently chosen boot configuration. It is set by the DOS BIOS (IO.SYS, IBMBIO.COM, etc.) to the name defined by the corresponding CONFIG.SYS directive MENUITEM...
102 KB (10,335 words) - 00:15, 3 April 2025
Matthias R. (1997-10-02). "Caldera OpenDOS 7.01/7.02 Update Alpha 3 IBMBIO.COM README.TXT". Archived from the original on 2003-10-04. Retrieved 2009-03-29...
23 KB (2,163 words) - 09:27, 6 March 2025
System Files: IO.SYS (or IBMBIO.COM): This contains the system initialization code and builtin device drivers; MSDOS.SYS (or IBMDOS.COM): This contains the...
3 KB (306 words) - 05:25, 14 December 2024
sector in form of a volume boot record (VBR) IO.SYS or IBMBIO.COM MSDOS.SYS or IBMDOS.COM COMMAND.COM All files must be for the same version of the operating...
7 KB (900 words) - 17:35, 21 November 2024
directory entry locations in the file system and the first three sectors of IBMBIO.COM to be stored at the start of the data area in contiguous sectors containing...
34 KB (3,541 words) - 19:35, 3 April 2025
Host drive sector 0 loads (in the case of DOS) the DOS BIOS (IO.SYS, IBMBIO.COM etc.) Depending on the version, only the first few sectors of the file...
26 KB (2,650 words) - 13:00, 19 March 2025
Matthias R. (1997-10-02). "Caldera OpenDOS 7.01/7.02 Update Alpha 3 IBMBIO.COM README.TXT". Archived from the original on 2003-10-04. Retrieved 2009-03-29...
36 KB (3,375 words) - 06:11, 3 March 2025
control this feature (Parse AUTOEXEC.BAT at logon). COMMAND.COM IBMBIO.COM / IO.SYS IBMDOS.COM / MSDOS.SYS SHELL (CONFIG.SYS directive) CONFIG.SYS autorun...
15 KB (1,697 words) - 19:51, 13 April 2025
the equivalent of the CP/M component in some DOS operating systems, IBMBIO.COM in PC DOS IO.SYS, in MS-DOS NetBIOS Bermuda Institute of Ocean Sciences...
2 KB (259 words) - 09:58, 24 July 2023
sizes significantly. The COUNTRY.SYS file parser in MS-DOS/PC DOS IO.SYS/IBMBIO.COM sets aside a 6 Kb (for DOS 6) scratchpad to load all the info. This allows...
33 KB (1,310 words) - 20:27, 25 March 2025
(1997-10-02) [1997-09-29]. "Caldera OpenDOS 7.01/7.02 Update Alpha 3 IBMBIO.COM - README.TXT and BOOT.TXT - A short description of how OpenDOS is booted"...
100 KB (8,702 words) - 22:12, 21 May 2025
formats with 640 KB and 800 KB. The DR DOS 3.41-8.0 BIOS (DRBIOS.SYS aka IBMBIO.COM) has a profile for an undocumented 250.25 KB (aka "243 KB") logical format...
33 KB (1,260 words) - 01:11, 19 September 2024
MS-DOS, PC DOS or DR-DOS contain a file called variously "IO.SYS", "IBMBIO.COM", "IBMBIO.SYS", or "DRBIOS.SYS"; this file is known as the "DOS BIOS" (also...
89 KB (9,559 words) - 19:02, 5 May 2025
reused this vector for their own purposes. On DOS systems, IO.SYS or IBMBIO.COM hooks INT 13 for floppy disk change detection, tracking formatting calls...
29 KB (3,319 words) - 17:50, 25 July 2024
Matthias R. (1997-10-02). "Caldera OpenDOS 7.01/7.02 Update Alpha 3 IBMBIO.COM". Archived from the original on 2003-10-04. Retrieved 2009-03-29. [1]...
18 KB (2,076 words) - 04:54, 2 October 2024
(1997-10-02) [1997-09-29]. "Caldera OpenDOS 7.01/7.02 Update Alpha 3 IBMBIO.COM - README.TXT and BOOT.TXT - A short description of how OpenDOS is booted"...
20 KB (2,648 words) - 08:01, 7 November 2024