Even before Edison was born, scientists had experimented with making light bulbs. These bulbs burned out after a few minutes. What Edison invented was the first incandescent light that was practical, that would light for hours and hours. He and his muckers also had to invent hundreds of other parts to make the light bulbs in your home work. Light switches, electric meters, wiring--all these had to be invented too.
The pip command is a tool for installing and managing Python packages, such as those found in the Python Package Index. It's a replacement for easy_install.
Insert the printer software CD. Double-click the P910 Series Installer CD icon on your desktop. The P910 Series Installer dialog is displayed. On this dialog are the Install icon and the Help installer icon. Double-click the Install icon. Complete the authentication notice, and then click OK.