What is an example of technological innovation in the financial sector?

Internet stock trading is a prime example of technological innovation in the financial sector due to its profound impact on how transactions are conducted and investments are managed. This advancement allows individuals and institutions to buy and sell stocks in real-time over the internet, significantly increasing accessibility and convenience compared to traditional methods that often required broker assistance.

The emergence of internet stock trading has democratized the investment process, enabling a larger number of individuals to participate in the stock market. It has also led to the development of various online trading platforms that provide numerous tools and resources for investors, such as real-time data, market analysis, and automated trading systems, enhancing the overall investment experience.

In contrast, other options, while they may involve technology, pertain to different sectors or functions that are not primarily focused on financial transactions or investment processes. For instance, electronic key systems are more relevant to security management, mobile web bookings relate to service reservations in the travel or hospitality sectors, and interactive TV primarily involves media technology rather than any financial services. Thus, internet stock trading distinctly illustrates technological innovation within the context of finance.