High & Low Level Languages

Question 1

High Level Languages

Answer 1

Close to human language
Independent of platform (works on different machines)
E.g. JAVA, Python, VB
Easier to correct errors

Question 2

Low Level

Answer 2

Assembly
Machine Code
Works directly on the CPU
Can use machine specific functions

Question 3

Why write code in a low level language

Answer 3

Direct access to the processor
Uses less memory
Executes instructions faster

Question 4

Compilers process

Answer 4

Translates whole program at once
Creates an .exe file
No need to recompile
Therefore allows faster execution
List of errors created
Optimises source code

Question 5

Interpreters process

Answer 5

Translates one line of code at a time
Machine code directly executed
Identifies error as soon as it finds one and stops
Error must be fixed to continue
Easier to debug

Question 6

Assemblers process

Answer 6

Translates low level language into machine code

Only option for low level language programs

Question 7

Complier

Answer 7

Translates HLL to machine code
Executable file produced
Compiled programmes can be used without compilers
Distributed for general use

Question 8

interpreter

Answer 8

Executes HLL statement at a time
No executable file
Interpreted programs cannot be used without interpreter
Used for development

Question 9

Assembler

Answer 9

LLL to machine code
Executable file produced
Assembled program can be used without assembler