Dell Studio 1558
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    HP ProBook 4720s
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    General Class Standard Laptop Desktop replacement
    Operating Sistem Windows 7 Windows 7
    Body Dimensions 14.60 in x 1.50 in x 10.00 in16.17 in x 1.11 in x 10.49 in
    Weight 2.51 kg (5.54 lb)2.97 kg (6.55 lb)
    Color Black, GreenBlack
    Display Size 15.6 inches17.3 inches
    Resolution 1600x900
    LED YesYes
    3D NoNo
    Processor Name Intel Core i3 330MIntel Core i3 330M
    Frequence 2.13 GHz2.13 GHz
    Cores 2 per processor2 per processor
    Cache L3 Cache:3.0 MBL2 Cache:3.0 MB
    Arhitecture 64-bit64-bit
    Technology 32nm32nm
    Chipset Mobile Intel HM57 Express
    TDP 35W35W
    Graphics Type Integrated cardDedicated card
    Name Intel HD GraphicsATI Mobility Radeon HD 4350
    Memory 512 MB
    Memory Capacity 3 GB2 GB
    Max Capacity 4 GB
    Max Capacity Per Slot 2 GB
    Type DDR3-1066 MHzDDR3-1333 MHz
    Slots 2
    Total Slots 2
    Storage Capacity 250 GB250 GB
    RPM 7200RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA (SATA type: 3Gbit/s)
    Optical Type Reading support: CD DVD
    Writing support: CD DVD    		Reading support: CD DVD BD
    Writing support: CD DVD
    Features Disc labeling:Yes (LightScribe)
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11n)Yes (802.11a, 802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:No
    Modem NoNo
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Interfaces USB 2 Version:2.0 Powered while off:Yes3 Version:2.0
    HDMI YesYes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)Yes (1)
    FireWire Yes (1)No
    Expansion Slot ExpressCard (34), PC Card (PCMCIA)ExpressCard (34)
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader Memory Stick, Memory Stick PRO, SD, SDHC, xD-Picture Card, MMCMemory Stick, Memory Stick Duo, Memory Stick PRO, SD, xD-Picture Card, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port NoNo
    Devices Keyboard
    Pointing Touchpad (2 Buttons)Touchpad
    Camera Yes, 2 megapixelsNo
    Microphone YesYes
    Security Features Kensington lock
    Baterry Cells 6 cells8 cells
    Type Li-Ion
    Capacity 56 WHr73 WHr

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