Data and Information
Subject :Basic Science & Technology
Class : Pry 4
Topic:
Data and information
Content
Data are unprocessed facts that have no meaning to the user until after computer processing. Data are inputs to the computer.
1. Numbers;1,2,3,….., ( these are data that are made up of just figures, numbers or numerals)
2. Alphabets;a,b,c,...., ( These are just letters of the alphabets)
3. Symbols;N,%,+,-,…. ( They are made up of symbols and special letters) .
4. Alphanumeric eg 13 Ajibola Street (this contains both alphabet and number.. For instance the home address of someone)
Information is a processed fact that has meaning to the user.This is what comes out after data have been processed.Information is an output from the computer.
Examples of information;#10,name,80% etc.
Sources of information
The following are sources of information:
i.Radio
ii.Television
iii.Newspapers
iv.Computers
v.Magazines
vi.Notice boards
How do we gather data
- By counting using counters and also by measuring using tapes
- We can gather data by observing the situation at hand and making necessary records
- By using questionnaire
- Through questions or interviews
- Filling of online forms or offline forms
Types of Data
- Numeric data
- Alphabetic data
- Alphanumeric data
- Symbols
What is information?
Information is processed data. It is a form of data that some actions or activities have been applied to in order to aid decision making
What are the differences between Data and Information
- Data is the raw fact while information is processed
- Data is not used for decision making but information can be used for decision making.
- Data has no inherent meaning while information does
- Data must be processed while information is already processed
Evaluation
1.State the meaning of data and information.
2.Mention four Sources of information.
3.Data are _____facts.
4.Information is a/an ______fact.
5. List five ways of gathering data
6. What is information
