Lenovo ThinkPad L420
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    Acer Aspire 7740
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    General Class Standard Laptop Desktop replacement
    Operating Sistem Windows 7 Windows 7
    Body Dimensions 12.54 in x 1.42 in x 9.17 in16.20 in x 10.80 in x 1.80 in
    Weight 2.31 kg (5.1 lb)3.27 kg (7.2 lb)
    Color Black
    Display Size 14 inches17.3 inches
    Resolution 1366x7681600x900
    LED YesYes
    3D NoNo
    Processor Name Intel Core i3 2310MIntel Core i3 330M
    Frequence 2.1 GHz2.13 GHz
    Cores 2 per processor2 per processor
    Cache L3 Cache:3.0 MBL3 Cache:3.0 MB
    Arhitecture 64-bit64-bit
    Technology 32nm32nm
    Chipset Intel HM65Mobile Intel HM55 Express
    TDP 35W35W
    Graphics Type Integrated cardDedicated card
    Name Intel GMA HDIntel HD
    Memory Capacity 4 GB
    Max Capacity 8 GB8 GB
    Max Capacity Per Slot 4 GB
    Type DDR3DDR3-1066 MHz
    Slots 2
    Total Slots 22
    Storage Capacity 160 GB500 GB
    RPM 7200RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA
    Optical Type Reading support: CD DVDReading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11a, 802.11g, 802.11n)Yes (802.11b, 802.11g, 802.11n)
    Bluetooth Yes Version:2.0 EDR:Yes
    Modem NoYes
    Infrared NoNo
    Wimax YesNo
    UWB NoNo
    Broadband Wireless CDMA (EVDO)
    Interfaces USB 4 Version:2.0 Powered while off:Yes4 Version:2.0
    HDMI Yes
    VGA YesYes
    LAN RJ-45RJ-45
    ESata Yes (1)No
    FireWire NoNo
    Expansion Slot ExpressCard (54, 34), PCI Express Mini
    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
    Other Digital audio output
    Devices Keyboard Dedicated media playback controls
    Pointing Touchpad (2 Buttons), Pointing stickTouchpad (Multitouch)
    Camera YesYes
    Microphone YesYes
    Security Features Kensington lock
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Capacity 2200 mAh
    Autonomy 3.5 Hours

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