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Data
Data is the raw and unprocessed alphabets, numbers, sounds and pictures. Data

has no meaning and not useful, but when organized, it becomes meaningful
information. Data is represented with the use of characters like alphabets (Aa -
Zz), digits (0-9) or special characters (+ - / * <>=etc.).

Forms of data
Text (alphabets, numbers & symbols)
Graphics (Pictures)
Motion pictures (Videos)
Music (Audio)

Sources of data

Primary Source is original research that is obtained through first hand
investigation. It is a data collected by an organization for its own use.
Primary data includes information collected from interviews,
experiments, surveys, questionnaires, focus group discussions and
measurement.
Secondary Source is research that is widely available and obtained

from another party. It is data collected outside an organization.
Secondary data can be found in publications, journals, newspapers and
internet.

Communication

Communication as used in the computer industry is the transfer or exchange of
information between or among two or more persons via a media, such as the
mobile phone, computer or a communication network. It is also the sending and/
or receiving information through a given media, such as telephone, computer or
the internet.

Forms of communication
Verbal Communication: Verbal communication is the use of sound

and words to express yourself. It is spoken word, either face-to-face or
through phone, voice chat, video conferencing or any other medium. It
is also known as oral communication.
Written communication: Written communication is any type of
interaction that makes use of the written word. It includes traditional