This document defines key terms related to data processing: input involves getting instructions and data into computers from users, processing transforms raw data into meaningful information, and output produces information from computers to users. It then discusses the data processing cycle stages of input, processing, output, and storage. The input stage involves data collection, capture, encoding, transmission and communication. Processing performs instructions to transform raw data. Output presents information to users and decodes data. Storage saves information for future use.

1. Q. Define Input.
Answer: Input is a method of
getting instructions and data into
computer from the user.

2. Q. Define Processing
Answer: The processing stage is
where raw data is transformed
into meaningful information to
be understood by users.

3. Q. Define Output
Answer: Output is a method of
producing outgoing information
from computer to the user.

4. Q. What is data?
Answer: Any type of knowledge
when it is in unprocessed form is
called data.

5. Today we will learn
DATA PROCESSING CYCLE

6. DATA PROCESSING

7. INPUT STAGE
• Data collection
• Data capture
• Encode data
• Data transmission
• Data communication

8. Q. What they are doing?
Answer: They are entering data
into a computer.

9. Q. Why do we need to input data?
Answer: We need data to get
information after processing it.

10. Q. What is data collection?
Answer: Data collection is a stage
of gathering data from the
environment and preparing it for
input.

11. Q. What is source document?
Answer: The paper or document on
which data is recorded when it is
collected is called a source document.

12. Q. What is data capture?
Answer: Data capture is the stage of
entering the collected data into
data processing system such as
computer or calculator.

13. Q. What does encoding mean?
Answer: Encoding means converting
data into a form that is easier to
input into a data processing system.

14. Q. What is data transmission?
Answer: Data transmission is the
stage of sending input data to the
processor and carrying it across its
various components.

15. Q. What is data communication?
Answer: Data communication is the
set of activities that allow data to be
sent from one data-processing
system to another.

16. PROCESSING STAGE
• Performing user instructions
• Transform raw data to information

17. Q. Why central processing unit
is used?
Answer: Central processing unit is
used to process data according to
given instructions.

18. Q. Why software is used?
Answer: Software is used to give
instructions to process data.

20. OUTPUT STAGE
• Information presented to user
• Decode data

21. Q. What is decoding?
Answer: Decoding means
converting encoded data into a
form that is easier to understand
by people.

22. STORAGE STAGE
• Save information for future use

23. Q. What is turnaround document?
Answer: A document that contains the results
of one processing activity, has more data
added to it, and is used as input for another
processing activity is called turnaround
document.

24. STAGES OF DATA PROCESSING CYCLE

25. DATA
PROCESSING
CYCLE

26. Home Work
• Question 1 and 2 on Page 10
• Submission date

27. • Today we learned data
processing cycle.
• In next lesson we will learn forms
of processed data