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Ordinateurs portables - C645-SP4142L (2.12 mb)
Facilité d'utilisation
Some software may differ from its retail version (if available), and may not include user manuals or all program functionality. Offers. Offer terms, duration and product availability all subject to change without notice 3 Processor (Central Processing Unit). Also see 64-Bit Computing Legal Footnote, if applicable. CPU performance in your computer product may vary from specifications under the following conditions: 1. use of certain external peripheral products 2. use of battery power instead of AC power 3. use of certain multimedia, computer generated graphics or video applications 4. use of standard telephone lines or low speed network connections 5. use of complex modeling software, such as high end computer aided design applications 6. use of several applications or functionalities simultaneously 7. use of computer in areas with low air pressure (high altitude >1,000 meters or >3,280 feet above sea level) 8. use of computer at temperatures outside the range of 5°C to 30°C (41°F to 86° F) or >25°C (77°F) at high altitude (all temperature references are approximate and may vary depending on the specific computer model – please visit the Toshiba website at for details). CPU performance may also vary from specifications due to design configuration. Under some conditions, your computer product may automatically shut-down. This is a normal protective feature designed to reduce the risk of lost data or damage to the product when used outside recommended conditions. To avoid risk of lost data, always make back-up copies of data by periodically storing it on an external storage medium. Use your computer product only under recommended conditions. Read additional restrictions under “Environmental Conditions” in your product “Detailed Specs.” Contact Toshiba Technical Service and Support for more information. 4 Graphics (Graphics Processing Unit). GPU performance may vary depending on product model, design configuration, applications, power management settings and features utilized. GPU performance is only optimized when operating in AC power mode and may decrease considerably when operating in battery power mode. Total Available Graphics Memory is the total of, as applicable, Dedicated Video Memory, System Video Memory and Shared System Memory. Shared System Memory will vary depending on system memory size and other factors. 5 Memory (Main System). Part of the main system memory may be used by the graphics system for graphics performance and therefore reduce the amount of main system memory available for other computing activities. The amount of main system memory allocated to support graphics may vary depending on the graphics system, applications utilized, system memory size and other factors. Computers configured with a 32-bit operating system can address up to 3GB of system memory. Only computers configured with a 64-bit operating system can address 4 GB or more of system memory. 6 Storage Drive (Internal HDD Capacity). One Gigabyte (GB) means 109 = 1,000,000,000 bytes and One Terabyte (TB) means 1012 = 1,000,000,000,000 bytes using powers of 10. The computer operating system, however, reports storage capacity using powers of 2 for the definition of 1 GB = 230 = 1,073,741,824 bytes and 1TB = 240 = 1,099,511,627,776 bytes, and therefore shows less storage capacity. Available storage capacity will also be less if the computer includes one or more pre-installed operating systems, such as Microsoft Operating System and/or pre-installed software applications, or media content. Actual formatted capacity may vary. 7 Optical Drive. Due to manufacturing and quality variations in third party optical media (e.g., CD or DVD) or optical media players/recorders, in certain cases, your Toshiba optical drive may not record on certain optical media that bear the applicable logo, or playback optical media recorded by other PCs or optical media recorders. Additionally, certain optical media recorded on your optical drive may not playback or operate properly on other PCs or optical media players. These problems are not due to any defect in your Toshiba PC or optical drive. Please refer to your PC's product specification for listing of specific format compatibilities. ToshibaDirect website: TAIS website for resellers: TAIS PC Support website: Satellite and SystemGuard are registered trademarks of Toshiba America Information Systems, Inc. and/or Toshiba Corporation. All other products and names mentioned are the property of their respective owners. --- C164-bit computing: 64-bit computing requires that the following hardware and software requirements are met: - 64-bit Operating System - 64-bit CPU, Chipset and BIOS (Basic Input/Output System) - 64-bit Device drivers - 64-bit applications Certain device drivers and/or applications may not be compatible with a 64-bit CPU and therefore may not function properly. See "Detailed Specs...