On Tue, 25 Sep 2001 [EMAIL PROTECTED] wrote: > 1. Does this mean , that once I switch my machine that is running a > TSR , the TSR is gone ? I guess that for all programs , a shutdown or > poweroff , stops the process.
Correct. > 2. One of my friends said that if a TSR hits the machine , you might > have to re-format the disk ! I dis-agree with him , because after all No, that is quite wrong. All you need to do is reboot, or some TSRs allow themselves to be unloaded. > 3. Till date I believe that Unix/Linux - based machines do not support > TSRs , am I right ? I reason that since the header file from which > TSRs take all their functions , id the dos.h you can't have TSRs on > Unixes. A TSR is a very old DOS-based term. A TSR is just a program that sits in memory, uses DOS's (advisory) memory allocation system to keep other programs from overwriting it and then registers itself as the handler for some type of event (usually, a timer, disk, video or keyboard interrupt). This was all necessary because DOS was single-tasking. On a real OS none of this is necessary. Instead we have the shell's job-control functions to switch among processes. It's Much Much Better this way.
