Data Processing
DATA PROCESSING
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Introduction
·
Data is the collection
of figures & facts just like values or measurement
·
Data Processing is a
process of converting of raw data into the meaningful information
·
The processing of data remain continues until
an accurate result is obtained
Stages
& Steps of Data Processing
·
Stages
o
Collection
o
Preparation
o
Input
o
Processing
o
Output
o
Storage
·
Steps
o
Input
§ Data is coded
§ Data is converted into a machine readable form
§ The converted form helps to process the data through a
computer
o
Processing
§ When the data is subjected to various means and methods
of manipulation
§ The point where a computer program is being executed
§ The processing of data is done by
· Classifying
· Sorting
· Calculating
· Summarizing
· & in Comparing the data
o
Output
§ Output is the presentation of processed data to various
user in different formats like
· Text
· Graphics
· Audio
· Video
Types
of Data Processing
·
MDP (Manual Data
Processing)
o
When the data is processed on manual basis
o
Higher chances of errors such as
§ Delays in data capturing
§ Misprint of high amount of operators
§ High labor cost
·
EDP (Electronic Data
Processing)
o
Recording, Manipulating & Summarizing the
data
o
Computer can help in
§ Accuracy
§ Speed
§ Consistency
§ Storage capacity
§ Automation
Elements
& Components of CDP (Computer Data Processing)
o Elements
o
Recording
o
Verifying
o
Duplicating
o
Classifying
o
Sorting
o
Calculating
o
Summarizing & Reporting
o
Merging
o
Storing
o
Retrieving
o
Feedback
o Components
o
CPU (Central Processing Unit)
o
Computer Memory
o
Data bus
o
Ports
o
Motherboard
o
Hard disk
o
Output devices
o
Input devices
Video
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