Fred
Davis was develop Technological acceptance model (TAM) in 1986.  TAM is an information system theory that
launch users acceptance towards the particular
system (Leyiaro, 2015). Online shopping is a modern technology and in
this research are going to study the factors that will influence consumer’s
behaviors to online shopping. So, TAM is one of the most successful measurements for computer usage effectively
among practitioners and academics and is commonly used theory while studying
consumer’s attitudes towards online shopping (Leyiaro, 2015 and Sultan
&Uddin, 2011).

One
of the important factors in TAM is it can trace the impact of external factors
on internal beliefs, attitudes, and
intention. The main purpose of TAM is to explain how a user accepts a specific
technology according to external factors that influence users to make a
decision (Sultan & Uddin, 2011). TAM had two specific beliefs, which are Perceived
Usefulness (PU) and Perceived Ease of Use (PEOU). Perceived Usefulness (PU) is
the level that a person believes using a
particular system can enhance their performance (Sultan & Uddin, 2011).
Perceived Usefulness also can define as
an expectative user’s subjective probability that using a specific application
system to increase their job performance within an organizational context
(Leyiaro, 2015). While, Perceived Ease of Use (PEOU) is the level to which the
expectative user expects the target system to be free of effort and which the
person believes that using a specific system would be free from the effort (Leyiaro, L., 2015 and Sultan
, 2011).  Perceived Ease of Use
has a direct effect on Perceived Usefulness and technology usage (Leyiaro,
2015).

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TAM is tried to predict and provide an explanation
to help practitioners and researchers to identify a particular system may be
unacceptable and pursue appropriate step. New technology such as computer, is
complex and the element of uncertainty exists in the minds of consumers with
respects to the successful adoption of them, people form beliefs, attitudes and
intention towards are trying to learn to
use new technology evolve (Davis, Bagozzi, & Warshaw, 1989 and Leyiaro,
2015). So, actual usage may be not a direct consequence of attitudes, beliefs,
and intention. So, in this research, TAM are using to help us understand how
consumers from attitudes towards online shopping by the applicability of TAM.