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3. Design a device that will read a scanner connected to it serially and save the characters in a file. When the scanner is not used, the user of this device can print the information stored in the file on to a printer connected serially to this device. The user can choose whether she wants to scan a file or print the information already scanned. Use 19,200 baud rate. 3. Design a device that will read a scanner connected to it serially and save the characters in a file. When the scanner is not used, the user of this device can print the information stored in the file on to a printer connected serially to this device. The user can choose whether she wants to scan a file or print the information already scanned. Use 19,200 baud rate