3. Compilers:
A program that translates HLL into a machine orientated language, often the machine code.
Many machine instructions are generated for each source statement
- The compiler:
Translates the source program statements into machine code
Includes linkage for closed subroutines
Allcocates areas of main storage
Generates the object program on cards, tape and disc as required
Produces a printed listing of the source and objected programs
when required
Tabulates a lish of errors found during compilation
- Compilers are commonly used for the translation of HLL program
- Compiler translates the whole of the HLL source program into a machine code
object program prior to the program being loaded into main memory and executed
- If a compiler is used, the same program need only be translated once
• Stages of compilation
lexical analysis
systatical analysis
code generation
Chapter 7: SOFTWARE.
Question 1. Application software?
- Application software comprises the programs that are written specifically to
achieve resulting appertaining to the company’s activities
- Application software comes from two source
They produce by themselves
Buy from an external agency
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