gone to the swapfile. If a program needs a certain block of data and it is not found in RAM memory then a page Fault occurs and the needed information is retrieved from the swapfile. Windows 95 had to be backward compatible to run MSDOS programs. To do this the system had to run 16 bit as well as 32 bit programs. The problem with this was that the system had to handle the 16 bit memory management different then the 32 bit memory management. It did this through the following (Windows 95):Each MS-DOS program runs on separate virtual machine called a MS-DOS virtual machine.A 16-bit application can send the processor only one thread of code at a time for execution.A 32-bit application can send the processor multiple threads of code at a time for execution.When one 16-bit application stops responding, all 16-bit applications stop responding. The 32-bit applications are not affected. Ending the hung up application will cause other 16-bit applications to respond once again.When a 32-bit application stops responding, no other applications are affected.Memory management will always be an issue with any operating system. Good management means the system will operate faster and more efficiently and bad management means the system will be slow and crash. ...
