Sony VAIO VGN-Z21ZN
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    HP ProBook 6570b
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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 in14.72 in x 1.35 in x 9.86 in
    Weight 1.50 kg (3.3 lb)2.51 kg (5.53 lb)
    Color BlackBlack
    Display Size 13.1 inches15.6 inches
    Resolution 1600x9001366x768
    LED YesYes
    3D NoNo
    Processor Name Intel Core 2 Duo P9500Intel Celeron B840
    Frequence 2.53 GHz1.9 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 HM76 Express
    TDP 25W35W
    Features Front side bus (FSB):1066 MHz
    Graphics Type Dedicated cardIntegrated card
    Name NVIDIA GeForce 9300M GSIntel GMA HD
    Memory 256 MB
    Memory Capacity 4 GB
    Max Capacity 4 GB16 GB
    Max Capacity Per Slot 2 GB8 GB
    Type DDR3-1066 MHzDDR3-1600 MHz
    Slots 2
    Total Slots 22
    Storage Capacity 128 GB320 GB
    Size 2.5"
    RPM 7200RPM
    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
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11a, 802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:YesYes Version:4.0 EDR:Yes
    Modem YesYes
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Broadband Wireless GSM (3G)
    Interfaces USB 2 Version:2.04 Powered while off:No
    HDMI Yes
    VGA Yes
    LAN RJ-45RJ-45
    ESata NoNo
    Thunderbolt No
    FireWire Yes (1)No
    Expansion Slot ExpressCard (34)ExpressCard
    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
    Multi Purpose DriveBay NoNo
    Docking Station Port NoYes
    Other DisplayPort
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad (2 Buttons, Multitouch)
    Camera Yes, 0.3 megapixelsYes
    Microphone YesYes
    Security Features
    Baterry Cells 3 cells
    Type Li-IonLi-Ion
    Capacity 31 WHr
    Autonomy 3.5 Hours

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