Linkers loaders and libraries

Question 1

What are modules

Answer 1

Modules are pieces of a larger program broken down into smaller tasks wrote in source code which can either be loosely coupled or tightly coupled

Question 2

What are object files

Answer 2

Object files are the machine code version of modules

Question 3

What is a code library

Answer 3

A code library is a collection of compiled procedures that can be used for common tasks.

Question 4

What positive features do code libraries have

Answer 4

No need to write procedures from scratch
Procedures already tested so little to no errors
Application can be smaller and compact
Allows for code to be shared across applications
can be wrote in the most efficient language

Question 5

What negative features do code libraries have

Answer 5

The library has to be well written
Specialist libraries can be very expensive such as those for finance
For run time the library has to be present

Question 6

What is a linker

Answer 6

combines a group of object files into an executable file

Question 7

What is a make file

Answer 7

A make file is a text file listing all of the object files that need to be connected together.

Question 8

What is a loader

Answer 8

A loader is a utility program that loads executable files into main memory