Explanation:
Software Engineering:
Focuses on developing software that is reliable, efficient, affordable, user-friendly and scalable
Computer Engineering:
Focuses on the design of the computer hardware and peripheral devices, often at the chip level
Information systems:
More of a business career that focuses in applying computers to business problems
Computer Science:
Focuses on computer architecture and how to program computers to make them work effectively and efficiently
Information Technology:
Focuses on computer equipment and software used by business and how they work, are secured, upgraded, maintained and replaced
The Precambrian time refers to the time 4.5 billion to 542 millions year ago. This period is characterized by having reduced atmosphere and included reduced compounds. Scientists believed that atmosphere at that time was devoid of free oxygen and CO2 was present in excess. Before the complex life evolved on the Earth, the Precambrian Earth's ocean contained dissolved carbon dioxide.
