High level language

High level language:

These languages are machine independent, means it is portable. The language in
this category is Pascal, Cobol, Fortran etc. High level languages are understood by
the machine. So it need to translate by the translator into machine level. A
translator is software which is used to translate high level language as well as low
level language in to machine level language.
Three types of translator are there:

Compiler

Interpreter

Assembler

Compiler and interpreter are used to convert the high level language into machine
level language. The program written in high level language is known as source
program and the corresponding machine level language program is called as object
program. Both compiler and interpreter perform the same task but there working is
different. Compiler read the program at-a-time and searches the error and lists
them. If the program is error free then it is converted into object program. When
program size is large then compiler is preferred. Whereas interpreter read only one
line of the source code and convert it to object code. If it check error, statement by
statement and hence of take more time.