Concurrent Processing

• Portable operating system industry standards
• standard for operating systems

something cannot move because something is in its way

passes command to the command interpreter which executes the string as an OS command

• Loads and executes new child processes
• 1st - exe filename
• 2nd - same as the first becoming argv[0]
• 3rd - same as first becoming argv[1]

create and exe a new processs

• creates a new process and its primary thread.
• the new process runs in the security context of the calling process.

• terminates the specified process and all of its threads
• hProcess[in] - the handle to the process to be terminated
• uExitCode[in] - the exit code to be used by the process and threads terminated as a result of this call

• waits until the specified object is in the signaled state or the time-out interval elapses
• If this handle is closed while the wait is still pending , the function's beaviour is undefined
• DWORD
• WINAPI

waits until 1 or all of the objects are in the singled state or the time-out interval elapses

• suspends the exe of the current thread until the time-out interval elapses
• 5 seconds

• To manage the resources
• allows all resources to access the hardware the same way

• multi-user, multi-tasking, embedded
• Unix

not IOS

• use if you are using c++ and launching thread
• must use reinterpret_cast<handle>()

• List of instructions that perform a task 
• Word = Application software -stuff we use
• Windows = System software - stuff the computer uses
• Backups = Utility software
• Havoc = Middleware -software that isn't used by itself

• Program being executed
• Code that is running
• Requires processor
• Requirements for run
•      Memory, state, call stack
• needs at least 1 thread

• inside a process
• one of many paths of execution
• one machine only

• global memory
• static variables
• heap(new)

• stack - local variables, function params
• HANDLE/IO
• CPU state
• exception