Q2-7.
b
Answer
Explanation
A credit card is a card that is issued based on a contract between the consumer and a credit
card company. The consumer can use this card within the scope permitted by the contract
conditions (such as the expiry and credit limit) to purchase goods or receive services through
deferred payment.
a): A card used for personal identification such as an employee ID card or member card
c): A debit card currently used at a financial institution that enables real-time purchases of
goods from a bank account
)
d : A card that is prepaid and used to pay for products or services
Q2-8.
c
Answer
Explanation
A traceability system makes it possible to track the production and distribution path of food
from the consumption location back to the production location, in order to assure its safety.
Q2-9.
d
Answer
Explanation
A GPS (Global Positioning System) is a system that uses artificial satellites to determine the
current position of an object. It is extensively used in devices such as car navigation systems
and mobile phones to determine its current whereabouts.
Q2-10.
c
Answer
Explanation
An information appliance refers to a consumer electronics product that is equipped with a
communi cation function able to connect to networks such as the Internet. For example, a remote control for a digital television can be used to answer a survey from a television program,
a mobile phone can turn on the air-conditioner away from home, and a microwave can search
and download recipes.
Q2-11.
d
Answer
Explanation
BtoC is an abbreviation for “Business to Consumer,” and refers to transactions between corporations and individuals. It is widely used in electronic marketplaces, online shopping, Internet advertising, Internet banking, and Internet trading.
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