Computers in the Design Profession

Drafting and design, computation of yardage, business and employee management and correspondence are managed by computer.
There are four divisions that interior designers use: the laptop, personal (PC), mainframe, and the mini-mainframe computers.
The laptop or notebook is about the size of a briefcase and consist of a keyboard, small monitor? And battery-operated computer drive unit. These are valuable for travel or on-site computing.