OS chapter 2 Flashcards
1
Q
What is the operating system responsible for?
A
Interpreting commands,
Controlling program execution,
Managing system resources,
presenting a simplified interface to the user
2
Q
Which generation of computers brought personal computers?
A
The fourth generation
3
Q
What operating systems did PCs use in the fourth generation?
A
They first ran single-user OSs like DOS, but today they run GUIs.
4
Q
What is a process?
A
A running program.
5
Q
What is used to create, remove, write, or in general interact with files?
A
System calls.
6
Q
How are files organized?
A
In hierarchical directories.
7
Q
What is a path?
A
The sequence of directory names.
8
Q
How are system calls issued?
A
Library procedures put values in specific places such as registers or the stack and issue a trap instruction.
