Week 1 - Introduction

Question 1

What do operating systems do?

Answer 1

> provide a better model of the computer and

> manage all the resources

Question 2

What kind of language is c?

Answer 2

a general purpose, low level, system programming language

Question 3

what is the standard version of C that we use?

Answer 3

ANSI C

Question 4

what steps does the shell go through to compile a c file?

Answer 4

> user enters compilation command
shell reads command from terminal
shell creates a child process to compile
when the child finished it syscalls to terminate itself

Question 5

describe the library

Answer 5

Input and output

Question 6

describe the library

Answer 6

numeric conversion, pseudo-random generation, memory allocation, process control

Question 7

describe the library

Answer 7

access to the POSIX OS

Question 8

describe the library

Answer 8

sting-handling

Question 9

describe the library

Answer 9

error reporting

Question 10

describe the library

Answer 10

common mathematical functions

Question 11

describe the library

Answer 11

managing multiple threads, mutexes, condition variables

Question 12

what are the 3 types of control structures?

Answer 12

sequential, selection, repetition

Question 13

Why has C been called a “system programming language”?

Answer 13

C is useful for writing operating systems and compilers

Question 14

What is the name of the compiled file if you run :

$ gcc helloWorld.c

Answer 14

a.out