Avant de commencer

A propos de la norme de représentation de la capacité du produit

Àpropos de la représentation de la capacité du stockage

La capacité du périphérique de stockage (disque dur, SSD) du fabricant est calculée en considérant que 1 Ko = 1 000 octets.

Le système d’exploitation (Windows) calcule toutefois la capacité du dispositif de stockage en considérant que 1 Ko = 1 024 octets, ce qui implique que la représentation de la capacité du disque dur dans Windows est inférieure à la capacité réelle.

Par exemple, pour un disque dur de 80 Go, Windows représente la capacité comme étant de 74,5 Go, 80 x 1 000 x 1 000 x 1 000 octets/(1 024 x 1 024 x 1 024) octets = 74,505 Go.

La représentation de la capacité dans Windows peut même s’avérer plus petite encore, car certains programmes comme Recovery peuvent être hébergés dans une zone cachée du disque dur.

Chapitre 1. 5

Mise en route

A propos de la représentation de la capacité de la mémoire

La capacité de la mémoire indiquée dans Windows est inférieure à la capacité réelle.

En effet, le BIOS ou un adaptateur vidéo utilise une partie de la mémoire ou l’alloue à un usage ultérieur.

(par ex. pour 1 Go (=1 024 Mo) de capacité mémoire installée, Windows peut indiquer 1 022 Mo, voire moins)

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Samsung NP300E5C-T06FR, NP940X3G-K02FR, NP905S3G-K06FR manual Propos de la représentation de la capacité du stockage

NP300E7A-A04FR, NP275E5E-K02FR, NP450R5G-X03FR, NP300E5A-S08FR, NP450R5E-X01FR specifications

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