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Why did the first IBM PC use MS-DOS and not CP M?
MS-DOS’s main innovation was its FAT file system. Since MS-DOS had access to more memory (as few IBM PCs were sold with less than 64 KB of memory, while CP/M could run in 16 KB if necessary), more commands were built into the command-line shell, making MS-DOS somewhat faster and easier to use on floppy-based computers.
Are drivers stored in BIOS?
BIOS drivers are a collection of programs stored in one or more EEPROM or EPROM (memory) chips, depending on the computer design, on the motherboard. Actually the term BIOS technically refers to the entire set of device drivers in a computer that provide a link between the hardware and software used on the system.
Is CP m still used?
CP/M is still a viable system and the z80 is still used for a great many control applications.
Where do drivers get installed to?
 In all versions of Windows the drivers are stored in the C:\Windows\System32 folder in the sub-folders Drivers, DriverStore and if your installation has one, DRVSTORE.  These folders contain all the hardware drivers for your operating system.
How do I write a BIOS program?
BIOS can be written in any of your favorite language, although lower level languages give you more control. Assembly and machine code are almost the same, the difference being microcode interface and what you type, eg. for machine code you’d only type 2 characters, and assembly give you alphanumerics.
When did Windows stop using DOS?
On December 31, 2001, Microsoft declared all versions of MS-DOS 6.22 and older obsolete and stopped providing support and updates for the system. As MS-DOS 7.0 was a part of Windows 95, support for it also ended when Windows 95 extended support ended on December 31, 2001.
What kind of computer did MS DOS use?
Initially, MS-DOS was targeted at Intel 8086 processors running on computer hardware using floppy disks to store and access not only the operating system, but application software and user data as well.
Who was the original owner of MS DOS?
MS-DOS was a renamed form of 86-DOS – owned by Seattle Computer Products, written by Tim Paterson.
Which is memory resident BIOS or BDOS or CCP?
The BIOS and BDOS were memory-resident, while the CCP was memory-resident unless overwritten by an application, in which case it was automatically reloaded after the application finished running. A number of transient commands for standard utilities were also provided.
Why is the command prompt called MS DOS?
The Command Prompt is often called the MS-DOS prompt. In part, this was the official name for it in Windows 9x and early versions of Windows NT (NT 3.5 and earlier), and in part because the SoftPC emulation of DOS redirects output into it.