Algorithms And Flowcharts

Question 1

Techniques of solving problems

Answer 1

❖ Representing a solution as pseudocode
❖ Writing an algorithm
❖ Drawing a flowchart

Question 2

A typical programming task can be divided into two phases

Answer 2

Algorithms and Flowcharts

Problem solving
Implementation

Question 3

produce an ordered sequence of steps that describe solution of
problem

Answer 3

Problem solving phase

Question 4

implement the program in some programming language

Answer 4

Implementation phase

Question 5

is an artificial and informal language that helps
programmers develop algorithms. Pseudocode is very similar
to everyday English.

Answer 5

Psuedocode

Question 6

A graphical representation of the sequence of
operations in an information system or program.

Answer 6

Flowchart

Question 7

Uses of flowchart

Answer 7

Flow chart are used in designing and
documenting complex processes.
•Like other types of diagrams, they help to
visualize what is going on and thereby help the
viewer to understand the process.

Question 8

Denotes the beginning or end of the program

Answer 8

Oval

Question 9

Denotes an input operation

Answer 9

Parallelogram

Question 10

Denotes a process to be carried out e.g. addition, subtraction, division etc.

Answer 10

Rectangle

Question 11

Denotes a decision (or branch) to be made. The program should continue along one of two routes. (e.g. IF/THEN/ELSE)

Answer 11

Diamond

Question 12

Denotes an output operation

Answer 12

Hybrid

Question 13

D
e
no
t
e
s
the
direction
of logic
flow in the program

Answer 13

Flow line

Question 14

(represented by a small circle) allows you to connect two flowchart segments.

Answer 14

Connectors

In page connector (circle, A in the middle)
Out page connector (pentagon downwards)

Question 15

The preparation or initialization of memory space of data

Answer 15

Initialization processing

Question 16

showing control over a documentflow over a system

Answer 16

Document Flowchart

Question 17

showing control over a data-flow in a
system

Answer 17

Data flowchart

Question 18

showing control at a physical or
resource level

Answer 18

System Flowchart

Question 19

showing the controls in a program
within a system.

Answer 19

Program flowchart

Question 20

Flowchart Structures

Answer 20

•Sequence
•Decision
•Repetition or Loop
•Case

Question 21

• a series of actions are
performed in sequence
• The pay-calculating
example was a sequence
flowchart.

Answer 21

Sequence

Question 22

One of two possible actions is taken,
depending on a condition. It indicates a
yes/no question. If the answer to the
question is yes, the flow follows one path. If
the answer is no, the flow follows another
path

Answer 22

Decision Structure

Question 23

One of several possible actions is taken, depending on
the contents of a variable.

Answer 23

Case Structure

Question 24

Repeat actions while a condition remains true .

Answer 24

Repetition or Loop Structure