What is the main characteristic from Era I of IT management?
A) Mainframe computers
B) Portable computing
C) Satellite communication
D) Biological networks

Name: What is the main characteristic from Era I of IT management? A) Mainframe computers B) Portable computing C) Satellite communication D) Biological networks
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Era I of IT management is characterized by the use of mainframe computers, which were large, powerful systems used for centralized computing tasks.

What Is the Main Characteristic from Era I of IT