Sony VAIO VGN-Z21ZN
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    Toshiba Satellite S855-S5254
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    General Class Portable Laptop Standard Laptop
    Operating Sistem Windows Vista Windows 7
    Body Dimensions 12.36 in x 1.30 in x 8.27 in14.96 in x 1.31 in x 9.53 in
    Weight 1.50 kg (3.3 lb)2.49 kg (5.5 lb)
    Color BlackGray
    Display Size 13.1 inches15.6 inches
    Resolution 1600x9001366x768
    LED YesYes
    3D NoNo
    Processor Name Intel Core 2 Duo P9500Intel Core i7 3610QM
    Frequence 2.53 GHz2.3 GHz
    Cores 2 per processor4 per processor
    Cache L2 Cache:6.0 MBL3 Cache:6.0 MB
    Arhitecture 64-bit64-bit
    Technology 45nm22nm
    Chipset Intel HM76 Express
    TDP 25W45W
    Features Front side bus (FSB):1066 MHzHyperthreading:Yes
    Graphics Type Dedicated cardIntegrated card
    Name NVIDIA GeForce 9300M GSIntel GMA HD 4000
    Memory 256 MB
    Memory Capacity 4 GB8 GB
    Max Capacity 4 GB16 GB
    Max Capacity Per Slot 2 GB8 GB
    Type DDR3-1066 MHzDDR3
    Slots 22
    Total Slots 22
    Storage Capacity 128 GB750 GB
    Size 2.5"
    RPM 5400RPM
    Type Solid State Drive (SSD)Hard Disc (HDD)
    Interface SATASATA
    Optical Type Reading support: CD DVD BD
    Writing support: CD DVD BD    		Reading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:YesYes Version:4.0
    Modem YesNo
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Broadband Wireless GSM (3G)
    Interfaces USB 2 Version:2.03 Version:2.0, 3.0 Powered while off:Yes
    HDMI YesYes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata NoNo
    Thunderbolt No
    FireWire Yes (1)No
    Expansion Slot ExpressCard (34)
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader Memory Stick, Memory Stick Duo, Memory Stick PRO, Memory Stick PRO Duo, SDSD, SDHC, SDXC, miniSD, microSD, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port NoNo
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad (2 Buttons, Multitouch)
    Camera Yes, 0.3 megapixelsYes
    Microphone YesYes
    Security Features Kensington lock, Face recognition webcam
    Baterry Cells 6 cells
    Type Li-IonLi-Ion
    Capacity 48 WHr
    Autonomy 3.5 Hours5 Hours
    Other Adapter power consumption:Typical: 75 W Power adapter voltage:100 V - 240 V, 50 Hz, 60 Hz

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