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Dell launched the E Series of laptops on August 12, 2008 with a collection of Latitude (E4200, E5400, E5500, E6400, E6500, E6400 ATG/XFR) and Precision (M4400, M2400) computers. [90] Both the Latitude and Precision computers are compatible with the new E Series docking stations (E-Port and E-Port Plus).
When a jumper is on or covering at least two pins it is a closed jumper, when a jumper is off, is covering only one pin, or the pins have no jumper it is an open jumper. Jumperless designs have the advantage that they are usually fast and easy to set up, often require little technical knowledge, and can be adjusted without having physical ...
For most machines with control panels, from collators, interpreters, to the IBM 407, IBM manuals describe the control panel as "directing" or "automatic operation was obtained by...". The control panels of calculators, such as the IBM 602 and IBM 604 , that specified a sequence of operations, were described as being programs .