Complete the following definitions with the words and phrases below

.

L Instructions are written in a high-level language (e.g. Pascal, BASIC, COBOL, Ada, C, Lisp). This is known as source program Compiler Compilers translate the original code into a lower-level language or machine code so the CPU can understand it. Instructions are compiled and packaged into a program. The software is ready to run on the computer. ook at the groups of words and decide what part of the speech each one is. Then complete the sentences with the correct word.

compile compiler compilation

Programs written in a high-level language require  or translation into machine code. A  generates several low-level instructions for each source language statement. Programmers usually  their programs to create an object program, and diagnose possible errors.

program programmers programming programmable

Most computer  make a plan of the program before they write it. This plan is called flowchart. A computer  is a set of instructions that tells a computer what to do. C In the word debug the prefic de- is used. This prefix means to reverse an action. What do the following words mean? defrost –declassify – decode – decompose – decentralize onverting an algorithm into a sequence of instructions in a programming language is called 

bug debug debugger debugging

New programs need  to make them work properly. Any error or malfunction of a computer program is known as a  The best compilers usually include an integrated  which detects syntax errors

More verbs 

Look at these pairs of examples and decide where there is an ‘important’ change in meaning.

1. 
   I remember shutting down the computer before I left the room. 
   
2. 
   Please remember to buy the new program. 
   

1. 
   They stopped to look at the flowchart. 
   
2. 
   They stopped looking at the flowchart. 
   

1. 
   I like studying C language. 
   
2. 
   I like to study C language in the evenings. 
   

1. 
   It has started raining. 
   
2. 
   It has started to rain.
   

1. 
   He needs to work harder. 
   
2. 
   This hard disk needs repairing. 
   

How a program is produced

Put the paragraphs in the right orfer to make up the text

_____A______

First of all you have to understand exactly what the problem is, and define it clearly. This means you have to decide in a general way how to solve a problem.

___________ Then you transfer the steps in the flowchart into instructions written in a computer language. You usually write these in a high-level language like BASIC or Pascal. You have to then use something called a compiler which translates the instructions into machine code, which is the only language understood by the processor.	___________ The next step is to decide an algorithm, which is a step-by-step plan of instructions used to solve a problem. You do this in a flowchart. You use special symbols to show how the computer works through your program – where it makes decisions, where it starts and ends, and thinks like that.
_____________ And then last of all you have to write instructions explaining to people how to use it. A great program is not much use unless people know how to use it.	____________ Once you have written your program, you have to test it with sample data to see if there are any bugs or errors. Usually there are, so the programs has to be cleared of them or ‘debugged’.

Number the steps in producing a program in the order they are explained in the text.
Provide documentation of the program. 

Understand the problem and plan the solution. 

Test and correct the program. 

Make a flowchart of the program. 

Write the instructions in coded form and compile the program. 

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