Sony VAIO VGN-Z51WG
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    Acer Aspire AS5749Z-4449
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    General Class Portable Laptop Standard Laptop
    Operating Sistem Windows 7
    Body Dimensions 12.36 in x 1.30 in x 8.27 in15.00 in x 1.40 in x 10.00 in
    Weight 1.55 kg (3.42 lb)2.40 kg (5.29 lb)
    Color BlackBlack
    Display Size 13.3 inches15.6 inches
    Resolution 1600x9001366x768
    LED Yes
    3D NoNo
    Processor Name Intel Core 2 Duo P9700Intel Pentium Dual-Core B950
    Frequence 2.8 GHz2.1 GHz
    Cores 2 per processor2 per processor
    Cache L2 Cache:6.0 MBL3 Cache:2.0 MB
    Arhitecture 64-bit64-bit
    Technology 45nm32nm
    Chipset Intel GM45 ExpressIntel HM65 Express
    TDP 28W35W
    Features Front side bus (FSB):1066 MHz
    Graphics Type Dedicated card, Integrated cardIntegrated card
    Name NVIDIA GeForce 9300M GSIntel GMA HD
    Memory 256 MB
    Name Intel GMA 4500MHD
    Memory Capacity 6 GB4 GB
    Max Capacity 8 GB8 GB
    Max Capacity Per Slot 4 GB4 GB
    Type DDR3-1066 MHzDDR3
    Slots 22
    Total Slots 22
    Storage Capacity 400 GB500 GB
    Size 2.5"
    RPM 7200RPM5400RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA
    Features Accelerometer for HDD protection:Yes
    Optical Type Reading support: CD DVD
    Writing support: CD DVD    		Reading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps100 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:Yes
    Modem YesNo
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Broadband Wireless GSM (3G)
    Interfaces USB 2 Version:2.03 Version:2.0 Powered while off:No
    HDMI YesYes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata No
    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, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port YesNo
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad (2 Buttons, Multitouch)
    Camera Yes, 0.3 megapixelsYes
    Microphone YesYes
    Security Features Kensington lock Kensington lock
    Baterry Cells 6 cells
    Type Li-IonLi-Ion
    Capacity 4400 mAh
    Autonomy 4.3 Hours
    Other Adapter power consumption:Typical: 65 W

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