HP ProBook 6555b
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    Acer Aspire 8940
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    General Class Standard Laptop Desktop replacement
    Operating Sistem Windows Vista Windows 7
    Body Dimensions 14.62 in x 1.37 in x 9.76 in17.30 in x 11.60 in x 1.70 in
    Weight 2.49 kg (5.5 lb)4.60 kg (10.14 lb)
    Color Black, GrayBlack
    Display Size 15.6 inches18.4 inches
    Resolution 1920x1080
    LED Yes
    3D NoNo
    Features Surface finish:Glossy
    Processor Name AMD Athlon II P320Intel Core i7 720QM
    Frequence 2.1 GHz1.6 GHz
    Cores 2 per processor4 per processor
    Cache L2 Cache:0.5 MBL2 Cache:6.0 MB
    Arhitecture 64-bit64-bit
    Technology 45nm45nm
    Chipset AMD M880GMobile Intel PM55 Express
    TDP 25W45W
    Features Front side bus (FSB):3200 MHz
    Graphics Type Integrated cardIntegrated card
    Name ATI Mobility Radeon HD 4250NVIDIA GeForce GTS 250M
    Memory 1024 MB up to 1791 MB
    Memory Capacity 8 GB4 GB
    Max Capacity 8 GB
    Max Capacity Per Slot 4 GB
    Type DDR3-1333 MHzDDR3-1066 MHz
    Slots 22
    Total Slots 22
    Storage Capacity 160 GB500 GB
    RPM 5400RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA
    Optical Type Reading support: CD DVDReading support: CD DVD BD
    Writing support: CD DVD
    Networking LAN 1000 mbps
    Wifi Yes (802.11b, 802.11g)Yes (802.11a, 802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.1 EDR:YesNo
    Modem YesNo
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Interfaces USB 3 Version:2.05 Version:2.0
    HDMI Yes
    VGA YesYes
    LAN RJ-45
    ESata Yes (1)Yes (1)
    FireWire Yes (1)Yes (1)
    Expansion Slot ExpressCard (54)ExpressCard (54)
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader YesMemory Stick, Memory Stick PRO, SD, xD-Picture Card, MMC
    Multi Purpose DriveBay NoNo
    Docking Station Port YesNo
    Legacy Ports Serial port
    Other DisplayPortDisplayPort
    Devices Keyboard Backlight, Dedicated media playback controls
    Pointing Touchpad (2 Buttons)Touchpad (Multitouch)
    Camera NoYes
    Microphone NoYes
    Security Features Kensington lock
    Baterry Cells 6 cells8 cells
    Type Li-IonLi-Ion
    Capacity 55 WHr
    Autonomy 3 Hours

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