Theory S-Record Motorola 's file format for transfering binaries to an embedded environment. Also called S1S9 format. A Unix document about it. By feeding the motor pulses you can exactly control how far the axis is being rotated. You can usually rotate the motor in both directions.
Stepper motors are for example used for the head movements in plotters, printers and disk drives.
See also Servo motor . Standard General specification on how to design a product so it can work together with other similar products. Standards Static Electricity Read this . Surge See local Surplus Surplus goods are left-over goods. Surplus goods are generally cheaper then new stuff, but only if you can easily find them.