Prepared by: Anne Perera
INFORMATION & COMMUNICATION TECHNOLOGY
DATA AND INFORMATION
ICT Grade 10
What is ICT?ICT is,The use of telecommunication, computer, and related devices & technologies to access, manipulate/ process, store and spread out data.
ICT Grade 10
DATADATA is,Row facts related to things, people, place or event, which are in unprocessed form and have no/ little meaning.
Data have to be•Accessed•Stored•Processed•Spread outIn decision making process
DATAProcess
Spread out
StoreAccess
ICT Grade 10
Data exists in the following forms.
1. Text
•Digits ( 0 - 9)• Letters (a-z A-Z)•Punctuation marks (, . : ; etc)•Control characters ( $ # @ ^ ! space etc)
2. Audio - Tones and other sounds, voice
3. Images -Dots, Lines, Circles, pictures………… etc.
DATA
ICT Grade 10
Examples for DATA
Employee Name
20,500
Job title
$
ICT Grade 10
Nature of data
Data can be • Collected and stored.• Retrieved from a storage medium.• Communicated.• Processed.
ICT Grade 10
Classification of data
Data can be categorized into two basic forms.1) Quantitative data – Data that can be
expressed numerically.2) Non-quantitative data – Data cannot be
expressed numerically.
ICT Grade 10
Quantitative data
• Data that can be measured numerically.• Deals with numbers.
Eg:- The number of attendees at an event. The temperature in a given location. A person's height in inches.
ICT Grade 10
Non-quantitative data
• Data cannot be expressed numerically.• Also known as qualitative data.• Deals with descriptions.
Eg:- Favourite colour. Place of birth. Favourite food.
ICT Grade 10
Why quantitative & non-quantitative data?
ICT Grade 10
What is PROCESS ?
ICT Grade 10
Types of processes
• Arithmetic process• Logical process• Sorting/ ordering / grouping• Manual process• Automated process
ICT Grade 10
What is INFORMATION?INFORMATION is,A set of data which is processed in meaningful way according to the given requirement/situation.
ICT Grade 10
DATA Vs INFORMATION
ICT Grade 10
WHY data & information ?
Making Decisions
