http://www.allinterview.com New RTOS Interview Questions en-us http://www.allinterview.com/showanswers/68630.html GPOS- GP Opertaing System RTOS -Real Time Operating System http://www.allinterview.com/showanswers/68625.html The standard UNIX kernel is a nonpreemptive kernel; it does not allow a user process to preempt a process executing in kernel mode. Once a running process issues a system call and enters kernel mode, preemptive context switches are disabled until http://www.allinterview.com/showanswers/67037.html http://www.allinterview.com/showanswers/59861.html This might be because, you might be allocating memory dynamically from the heap. But care is not taken to deallocate the same. as a result, there are memory leaks and finally the os says that there is no free memory http://www.allinterview.com/showanswers/57749.html http://www.allinterview.com/showanswers/57748.html 1.The operation must be atomic 2.The atomicity is ensured by disabling the interrupts and immediately after crictical section enabling the interrupts..here slight precausion has to be taken i.e do not forget the enabling of interrupts .... http://www.allinterview.com/showanswers/56635.html Adv: 1) Supports various types of processor platforms 2) Possible to Customize the Kernel and can reduce its size (upto ~300KB kernel size) 3) Especially for the embedded device platforms Disadv: 1) Process limits, max. 32 process at a time i http://www.allinterview.com/showanswers/56634.html I am not sure in every cases, whether this is true..?? May be the reason is, While compared to PocketPc, smartphone has a limited h/w resources, like memories etc. In order to reduce the kernel+application size, they are removing the libraries fo http://www.allinterview.com/showanswers/56633.html http://www.allinterview.com/showanswers/56632.html there are four levels in Win CE architecture. They are 1)Hardware layer 2)OEM layer 3)OS layer 4)Application layer for more info refer to http://msdn2.microsoft.com/en-us/library/ms905093.aspx http://www.allinterview.com/showanswers/56631.html MSFT standard SDK's are, 1. Windows Mobile for Smartphone = Windows Mobile Standard. 2. Windows Mobile for Pocket PC = Windows Mobile Classic. 3. Windows Mobile for Pocket PC Phone Edition = Windows Mobile Professional. http://www.allinterview.com/showanswers/56630.html normal os Wince unlimited process 32 process non preemptive preemptive no XIP XIP http://www.allinterview.com/showanswers/56629.html In the name "Windows CE," the letters "CE" are not an abbreviation for anything, but rather they imply a number of the precepts around which Windows CE is designed, including "Compact," Connectable," Compati http://www.allinterview.com/showanswers/56628.html - Supports various processor x86, MIPS, SH, ARM - Real TimeOS - Preemptive - Max 32 process supported on or previous version of wince 6.x - XIP - Small memory foot print. - Suitable for small gadgets with like Portable media players, Mobile http://www.allinterview.com/showanswers/28356.html It is software which talks to the device