17076963
Description
Mind Map by Mathew Wheatley, updated more than 1 year ago
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Created by Mathew Wheatley
about 5 years ago
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Unit 2.5 - Translators and
Facilities of Programs
- There are 2 different
types of Programming
Languages
- Low - Level Programming
Languages
- 1st Generation (Machine Code) is
directly executable and yet it is hard
to debug. It needs no translators but
is very hard for a human to read.
- 2nd Generation (Assembly
Language) uses mnemonics and
one instruction translates to
one instruction. Computers
cant read it and so it is back
tracked via an assembler. It is
often used in device drivers.
- 1st Generation (Machine Code) is
directly executable and yet it is hard
to debug. It needs no translators but
is very hard for a human to read.
- High - Level Programming Languages
which are portable but can be OS specific
- 3rd Generation Programming Languages are
easier for humans to understand, however
computers cant read them and each
instruction turns into a great many. We can
use either compilers or interpreters to turn it
back into machine code. Examples include
Java, Python and C++
- 4th Generation Declarative Languages describe what
should be performed and not how to do it. Facts and
Rules are stated. An example could be SQL.
- 3rd Generation Programming Languages are
easier for humans to understand, however
computers cant read them and each
instruction turns into a great many. We can
use either compilers or interpreters to turn it
back into machine code. Examples include
Java, Python and C++
- Low - Level Programming
Languages
- Translators are programs that convert source
code (High Level) into m code (Low Level)
- An assembler is a translator that converts
2nd Generation Assembly Language into
Machine Code for the computer to read.
- Compilers translate high level
source code into machine code.
It is compiled upon the end of
development. Compiled (.exe)
files can be run over and over
again without recompiling
- Interpreters do this line by line
however they don't produce
compiled files.
- Compiled run faster but the interpreted is more flexible
- An assembler is a translator that converts
2nd Generation Assembly Language into
Machine Code for the computer to read.
- Integrated Development Environment (IDEs)
- Software tools that provide
many of the utilities required to
develop a program in one place.
- Common features may include an editor
(software used to write source code),
debugging tools and systematic progression
through a program and a linker.
- A linker is a program used with a compiler
or assembler to provide links to the libraries
needed for an executable program.
- A linker is a program used with a compiler
or assembler to provide links to the libraries
needed for an executable program.
- Software tools that provide
many of the utilities required to
develop a program in one place.
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