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DisplayHP Essential 420 WU759LA 
Screen Size14.00 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeWXGA
Screen Resolution1366 x 768
Backlight TechnologyLED
Graphics Controller ManufacturerIntel
Graphics Controller ModelGMA 4500MHD
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityShared
Hard DriveHP Essential 420 WU759LA
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Optical Drive TypeDVD-Writer
MemoryHP Essential 420 WU759LA
Memory Card SupportedSecure Digital (SD) Card, MultiMediaCard (MMC)
Standard Memory2 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkHP Essential 420 WU759LA
Wireless LANYes
Wireless LAN ManufacturerRealtek
Wireless LAN ModelRTL8191SE
Wireless LAN StandardIEEE 802.11n
Ethernet TechnologyFast Ethernet
BluetoothYes
Bluetooth StandardBluetooth 2.1
DimensionsHP Essential 420 WU759LA
Height1.1"
Width13.2"
Depth9.0"
Weight (Approximate)80.0 oz
ColorStone Gray
Detailed SpecsHP Essential 420 WU759LA
WebcamYes
MicrophoneYes
ProcessorHP Essential 420 WU759LA
Processor ManufacturerIntel
Processor TypePentium
Processor ModelT4400
Processor Speed2.20 GHz
Processor CoreDual-core (2 Core)
Cache1 MB
Bus Speed800 MHz
Chipset ManufacturerIntel
Chipset ModelGL40 Express
SoftwareHP Essential 420 WU759LA
Operating SystemWindows 7 Starter
Operating System Architecture32-bit
Input DevicesHP Essential 420 WU759LA
Pointing Device TypeTouchPad
I/O ExpansionsHP Essential 420 WU759LA
Expansion Slot TypeExpressCard/34
BatteryHP Essential 420 WU759LA
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time5.50 Hour
InterfacesHP Essential 420 WU759LA
HDMIYes
Total Number of USB Ports3
Number of USB 2.0 Ports3
VGAYes