topic 7 - high and low level languages

Question 1

High level languages(4)

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 languages(4)

Answer 2

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

Question 3

Low level language advantage(3)

Answer 3

• Direct access to the processor
• Uses less memory
• Executes instructions faster

Question 4

Translators(3)

Answer 4

• Compilers
• Accumulators
• Assemblers

Question 5

Compilers(6)

Answer 5

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

Question 6

Interpreters(5)

Answer 6

• 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 7

Assemblers(2)

Answer 7

• Translates low level language into machine code

- Only option for low level language programs

Question 8

Errors(2)

Answer 8

• Syntax

- Logic