Unit 1.2.2 Applications Generation

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What is the purpose of making your program closed source?

It prevents users altering the code for personal gain or malicious use.

What is the purpose of making your program open source?

This means anybody is able to modify the code as they wish and help develop the software further

What are some examples of Utilities?

Antivirus, Antispam, Firewalls, Backups, Disk Defragmenters, Compressors and File Managers

There is a one to one relationship between object code and machine code, what is the exeption to this rule?

lables, which are created on the fly as actual locations replace labels in translation

What will an Interpreter do when it finds an error?

It will indicate the position of the error.

What are interpreters often used for?

they are used in program development so that bugs and erros can be found without compiling the program for each test

How does the Assembler match labels and addresses?

It makes a symbol table to match labels and addresses

What is an advantage of using a Compiler?

It protects the program from malicious use or modification and it is optimized.

What is a disadvantage of using a Compiler?

It is architecture specific.

What are the stages of Compilation?

Lexical Analysis, Sytax Analysis, Code Generation and Optimisation.

What is the advantage of using a Library?

For tasks that require a certain level of expertise, it provides pre-tested code, they are pre-compiled and error free.

What are the two types of likers?

static linkers and dynamic linkers