Acer Aspire 1820PT
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    HP ProBook 6450b
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    General Class Convertible Laptop/Table Portable Laptop
    Operating Sistem Windows 7 Windows XP
    Body Dimensions 11.22 in x 1.36 in x 8.22 in13.35 in x 1.33 in x 9.30 in
    Weight 1.72 kg (3.79 lb)2.27 kg (5 lb)
    Color Black, Red, BlueBlack, Gray
    Display Size 11.6 inches14 inches
    Resolution 1366x768
    LED YesYes
    Touchscreen Touchscreen:Yes Multi-touch:Yes
    3D NoNo
    Features Pivot screen:Yes Surface finish:Glossy
    Processor Name Intel Core 2 Duo Intel Celeron P4500
    Frequence 1.86 GHz
    Cores 2 per processor2 per processor
    Cache L3 Cache:2.0 MB
    Arhitecture 64-bit64-bit
    Technology 32nm
    Chipset Intel GS45 ExpressIntel HM57
    TDP 35W
    Graphics Type Integrated cardDedicated card, Integrated card
    Name Intel GMA 4500MHDAMD / ATI Radeon / Mobility Radeon HD540v
    Memory 64 MB up to 1759 MB512 MB
    Name Intel HD Graphics
    Memory Capacity 4 GB8 GB
    Max Capacity 8 GB8 GB
    Max Capacity Per Slot 4 GB
    Type DDR3-1066 MHzDDR3-1333 MHz
    Slots 2
    Total Slots 2
    Storage Capacity 160 GB160 GB
    RPM 7200RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA (SATA type: 3Gbit/s)
    Optical Type NoReading support: CD DVD
    Networking LAN 100 mbps1000 mbps
    Wifi Yes (802.11a, 802.11b, 802.11g, 802.11n)Yes (802.11b, 802.11g)
    Bluetooth Yes Version:2.1 EDR:YesYes Version:2.1 EDR:Yes
    Modem NoYes
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Interfaces USB 3 Version:2.03 Version:2.0
    HDMI Yes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata NoYes (1)
    FireWire NoYes (1)
    Expansion Slot ExpressCard (54)
    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, SD, miniSD, microSD, xD-Picture Card, MMC, RS-MMCYes
    Multi Purpose DriveBay NoNo
    Docking Station Port NoYes
    Other Digital audio outputDisplayPort
    Devices Keyboard
    Pointing Touchpad (2 Buttons, Multitouch)Touchpad (2 Buttons)
    Camera Yes
    Microphone Yes
    Security Features Kensington lock
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Capacity 5600 mAh47 WHr
    Autonomy 8 Hours
    Other Adapter power consumption:Typical: 30 W Power adapter voltage:100 V - 240 V, 50 Hz, 60 Hz

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