Question:What are the three logical structures in any structured program? 

1. Sequence structure: In the sequence structure, instructions are executed in the order in which they are encounterd.
2. Loop/Iteration structure: The loop (or iteration) structure provides for the repetition of one or more instructions for as long as a given situation, referred to as a condition, exists.
3. Selection structure: A condition is tested, and one of two alternative courses of action is selected depending on whether the condition is ture or false.

Question:What are subroutines? 

A group of instructions that performs a limited processing test, such as printing a portion of a report, reading an input record, or calculating a square root.
subroutine can be classified into two types: 

1. Internal subroutines: An internal subroutine is part of the program that uses it.
2. External subroutines: External subroutines are used for tasks that more than one program is likely to want performed.

Question:Define modular programming. 

In modular programming, the program is broken down into modules (pieces), each of which performs a single, limited function and is written and debugged separately from other modules.

Question:What do you mean by user? 

The person or group who whome will use the output produced by the computer.

Question:What do you mean by GOTOless programming? 

Programming without the use of branch instruction that is called GOTOless programming.

Question:How many logical structures in any strectured program? 

There are three logical structure in a structure program. they are ______
1. The sequence structure
2. The loop structure and
3. The selection structure

Question:What do you mean by priming read ? 

Priming read means reading the first record in a file prior to entering a loop that is executed until EOF is detected.

Question:Define counter. 

A device for recording the number of times something occurs. In programming, counter technique requires that the number of data records to be read be known in advance.

Question:Write all syntax of the selection structure in psuedocode. 

1. IF condition THEN 
      instruction-T
   END IF

2. IF condition THEN
    instruction-T
   ELSE
    instruction-F
   END IF

3. IF condition-A THEN
     instruction-1
   ELSE IF condition-B THEN 
     instruction-2
   ELSE IF condition-C THEN
     ...
   ELSE 
     instruction-n 
   END IF

Question:Draw the generalized selection structure in flowchart. 

Figure: Generalized selection structure