test march 17th

Question 1

what is a high level language

Answer 1

use statements close to english / maths making it easier to solve and write problems
- translated by compiler/ interpreter
- machine independent
eg python

Question 2

when use a high level language

Answer 2

Programmers almost always write in high-level languages because they are easier to understand and are less complex than machine code

Question 3

why is it better to code in high level than low level

Answer 3

• machine independent
• easier to understand
• easier to debug
• easier to learn + faster to write

Question 4

what is a low level langauge

Answer 4

Low-level languages are languages that sit close to the computer’s instruction set
An instruction set is the set of instructions that the processor understands
eg assembly language, machine code

Question 5

when is a low level language used

Answer 5

to control and manipulate specific hardware directly

Question 6

when use a low level language instead of a high level kanguage

Answer 6

• run quicker
• require less memory
• can control specific hardware directly

Question 7

what are the negatives/ limitations of low level languages

Answer 7

• not machine independent
• hard to debug
• hard to read / understand

Question 8

what is assembly language used for

Answer 8

low level language
used to directly manipulate hardware

Question 9

what languages are processor specific

Answer 9

low level are processor specific
high level are machine independent

Question 10

assembler

Answer 10

converts assembly language to machine code

Question 11

interpreter

Answer 11

converts high level languages

Question 12

compiler

Answer 12

converts high level languages

Question 13

interpreter vs compiler