Notebooks

Notebooks

1. A portable computer (Laptop or notebook) uses similar technologies with that of desktop PC, with important adaptations. The comparison with a portable and an office computer is as difficult as to compare desktop PC with a network server. They use similar components, it is all.

2. An user of a notebook seeks: minimum weight and obstruction and autonomy (absence electrical supply network). The performances do not return inevitably in line of account (though it is relative) for this kind of computer. Some specificities are added on the new models like reader DVD and TV output.

3. General presentation of hardware of notebook.

   • A motherboard: ncluding the inputs/outputs: graphic card, wearing of communication series and parallel, chipset, controller E-IDE and diskette. In certain models, the disk drive can be external on port USB. The mother chart is specific to the model, including mechanical fixings. The microprocessor can be of type mobile or standard. he processor mobiles use advanced techniques to reduce their speed in the event of nonuse, even of short period.
   • A monitor of flat type.
   • A battery. It allows an endurance until 3 hours, much less if the processors and memories are standard.
   • Memory: Just like the microprocessors, a portable the bottom-of-the-range one uses standard office automation memories. The advantage is the price, the defect comes from consumption and the obstruction.
   • A power supply also being used as battery charger. The unit is inserted in a case which is generally used as cooler with the microprocessor. Indeed, the use of a standard ventilator would impose an obstruction important and would increase consumption

4. Mobile processors.

   • INTEL nstalled in its series M 2 functions of energy saving: function DEEPER LEEP and the function speedstep.
   • AMD was a long time in retreat with respect to INTEL for the portable processors. K6 and Duron used were only standard processors with some do-it-yourself to reduce consumption. This changed with the exit of semi-2001 mobile ATHLON XP. Technology also allows him to reduce the supply voltage of the processor according to the load of the portable PC.