2021 was a year of continued growth and innovation in the technology industry. Here are some of the highlights of the year:

1. The Further Expansion of Remote Work: Remote work continued to be a major trend in 2021, with many companies opting to keep their employees working from home due to the ongoing COVID-19 pandemic. This resulted in a continued surge of interest in remote collaboration and communication tools.
2. The Advancements in Artificial Intelligence: Artificial intelligence continued to be a major focus in 2021, with advancements in areas such as natural language processing, computer vision, and machine learning, as well as the growth of AI-powered products and services.
3. The Growth of the Internet of Things: The Internet of Things (IoT) continued to grow in 2021, with the introduction of new IoT devices such as smart home security systems, connected appliances, and wearable technology.
4. The Emergence of 6G Technology: 6G technology emerged as a new trend in 2021, with companies exploring the potential for even faster and more reliable wireless networks in the future.
5. Virtual Reality and Augmented Reality: Virtual reality and augmented reality made further progress in 2021, with the launch of new VR and AR devices and the growth of VR and AR content, particularly in areas such as gaming and entertainment.
6. The Advancements in Telehealth: Telehealth continued to be a major trend in 2021, with the COVID-19 pandemic leading to a growth in demand for remote healthcare services and solutions.
7. The Expansion of Streaming Services: Streaming services such as Netflix and Amazon Prime Video continued to grow in popularity in 2021, with the launch of new streaming services and the expansion of existing ones.
8. The Increase in Cybersecurity Concerns: Cybersecurity remained a major concern in 2021, with the rise of cyber threats and the need for increased protection of sensitive data and systems, particularly with the growth of remote work.

Overall, 2021 was a year of continued growth and innovation in the tech industry, with several major advancements that set the stage for continued progress in the years to come. The COVID-19 pandemic continued to have a profound impact on the way we live and work, and technology played a critical role in helping us adapt and continue to move forward.