This document discusses computers in daily life and electronic data processing. It begins by stating the objectives of understanding data processing principles, computer system elements, algorithms, and flowchart creation. It then defines electronic data processing as utilizing computers for processing data. It distinguishes between data and information, and describes the five stages of the data processing cycle: origination, input, processing, output, and storage and feedback. The document concludes by explaining what a flowchart is, providing an example, and listing the basic flowchart symbols used to represent elements like terminal, input/output, decision, and flowlines.

1. COMPUTERS IN
OUR DAILY
LIFE
Created by: Norwin C. Adriatico

2. At the end of the topic, students will be able to:
1. Understand the data processing principle;
2. identify the elements of a computer system;
3. define algorithm;
4. learn the guidelines for drawing and creating a
flowchart.
Objectives

3. - It refers to the utilization of computer or infor-
mation and communications technology (ICT)
equipment in the processing, operation and ma-
nipulation of data.
ELECTRONIC DATA PROCESSING

4. ELECTRONIC DATA PROCESSING
Data vs Information
Data
- refer to raw materials like letters, numbers,
sounds, images.
Information
- refers to processed data which undergone
operations and can serve as input to other
subsequent operations.

5. ELECTRONIC DATA PROCESSING

6. ELECTRONIC DATA PROCESSING
Data Processing Cycle
e a
d
c
b
a. Origination
- The initial capture
of raw data as
transactions occurs.
- Involves collection,
gathering and
identifying data.

7. ELECTRONIC DATA PROCESSING
Data Processing Cycle
e a
d
c
b
b. Input
- Data are collected
and converted into
a form acceptable
for processing.
- Involves classifying,
summarizing,
sorting and coding.

8. ELECTRONIC DATA PROCESSING
Data Processing Cycle
e a
d
c
b
c. Processing
- refers to the
electronic
manipulation of
data.
- logical and
mathematical
operations are
executed

9. ELECTRONIC DATA PROCESSING
Data Processing Cycle
e a
d
c
b
d. Output
- This stage refers to
the display of
results from the
process stage.

10. ELECTRONIC DATA PROCESSING
Data Processing Cycle
e a
d
c
b
e. Storage and
Feedback
- This stage involves
retention of the
results of
processed data for
future use or
retrieval.

11. FLOWCHARTING
Flowchart
- Is a graphical representation of an algorithm;
- it is used to test the validity of the statements
entered in the program;
- it is used to determine if the sequence of
instructions is correct.
- It has 3 basic structures: sequencial, conditional,
and repetition program structure.

12. Flowcharting
Example in words: Add two numbers
Example flowchart:

13. FLOWCHARTING SYMBOLS
Terminal Symbol – It represents
the beginning and end of a
program or point of interruption
in a program.
Preparation Symbol – It
indicates the initialization of
certain variables to given
values, usually 0 for numeric or
null for string values.

14. FLOWCHARTING SYMBOLS
Input/output Symbol – It
represents an activity to an
input or an output device.
Process Symbol – It represents
an instruction that involves
arithmetic calculations or
assigning a value into a
variable.

15. FLOWCHARTING SYMBOLS
Decision Symbol – It signifies a
decision usually expressed in
an If---Then statement.
On-Page Connector Symbol - It
is used to designate an entry
from or an exit to another part
of the flowchart on the same
page.

16. FLOWCHARTING SYMBOLS
Off-Page Connector Symbol –
Shows an exit to or an entry to
another part of the flowchart
page.
Flowlines – Used to show the
direction of flow of data and the
sequence of instruction in a
program.

17. - Living in the Information Technology Era, Ronina R.
Caoili - Tavuan and Mia V. Eleazar.
- Basic Computer Concepts and Applications with Fundamentals
of Programming, James Patrick A. Acang et.al.
- Britanica.com
References