2nd Year Flashcards
What is Dijksrtra’s algorithm?
It’s an algorithm that’s used to find the shortest paths between nodes in a graph.
What are operating systems?
They are programs that have special privileges on the hardware that allow them to run and manage other programs
What does the blue screen of death signify?
That a program had crashed so badly, it took down the whole night operating system
What is a switch statement?
It allows a variable to be tested for equality against a list of values. Each value called a case
(Like an if statement)
The first program that is run when a computer is powered up or rebooted
Bootstrap program
What is an interrupt?
Hardware may trigger an interrupt by sending a signal to the CPU usually through a system bus
(The CPU stops what it’s doing to run a different program)
What is a system call? (Monitor Call)
It is software that may trigger an interrupt by executing system call
What does the bootstrap program do?
It loads the OS and located and loads into memory the OS kernel
