Dell Studio 1557
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    Toshiba Tecra R840-S8420
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    General Class Standard Laptop Standard Laptop
    Operating Sistem Windows 7
    Body Dimensions 14.63 in x 1.23 in x 9.96 in13.40 in x 1.06 in x 9.40 in
    Weight 2.51 kg (5.54 lb)1.90 kg (4.19 lb)
    Color Black
    Display Size 15.6 inches14 inches
    Resolution 1366x7681366x768
    LED YesYes
    3D NoNo
    Processor Name Intel Core i7 Intel Core i5 2520M
    Frequence 2.5 GHz
    Cores 2 per processor
    Cache L3 Cache:3.0 MB
    Arhitecture 64-bit
    Technology 32nm
    Chipset Intel PM55Intel QM67 Express
    TDP 35W
    Graphics Type Dedicated cardIntegrated card
    Name AMD / ATI Radeon / Mobility Radeon HD 4570Intel GMA HD
    Memory 512 MB64 MB up to 1696 MB
    Memory Capacity 1 GB4 GB
    Max Capacity 8 GB8 GB
    Max Capacity Per Slot 4 GB4 GB
    Type DDR3-1066 MHzDDR3
    Slots 12
    Total Slots 22
    Storage Capacity 320 GB
    RPM 7200RPM
    Type Hard Disc (HDD)
    Interface SATA
    Optical Type Reading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11a, 802.11g, 802.11n), Intel WiDi
    Bluetooth Yes Version:3.0 EDR:Yes
    Modem No
    Infrared No
    Wimax No
    UWB No
    Interfaces USB 2 Version:2.0Powered while off:Yes
    HDMI Yes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)Yes (1)
    FireWire Yes (1)No
    Expansion Slot ExpressCard (34), Mini PCI
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader SD, SDHC, SDXC, miniSD, microSD, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port NoYes
    Other DisplayPort
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad (2 Buttons, Multitouch), Pointing stick
    Camera Yes, 2 megapixelsYes
    Microphone YesYes
    Security Features Kensington lock, Face recognition webcam, Fingerprint reader
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Capacity 66 WHr
    Autonomy 10.1 Hours
    Other Adapter power consumption:Typical: 65 W Power adapter voltage:100 V - 240 VAdapter power consumption:Typical: 65 W Power adapter voltage:100 V - 240 V, 50 Hz, 60 Hz

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