The HP Compaq 8100 Elite incorporates Intel's newest PC architecture, code-named Nehalem. The Intel Q57 Express chipset and Core processors represent the next step in faster, multi-core technology that intelligently maximizes performance to match your workload. The new Intel Intel Core i5, processors is built on advanced technology that helps automatically apply processing power where it’s needed most for enhanced multitasking and energy efficiency. Dimensions (h x w x d) 100 x 338 x 378.5 mm Weight 7.6 kg Input devices HP PS/2 or USB Standard Keyboard -- HP PS/2 2-button optical scroll mouse I/O ports and connectors Front: four (4) USB 2.0, microphone, headphone Rear: six (6) USB 2.0, PS/2 keyboard and mouse, line in, line out, VGA, DisplayPort, RJ-45 Network, serial port Audio Realtek ALC261 HD Audio Communications Intel 82578 GbE Network Connection Graphics Integrated Intel Graphics Media Accelerator HD or discrete graphics support Removable media Serial ATA Optical Disc Drives: DVD-ROM, SuperMulti LightScribe DVD Writer,, HP 22-in-1 Media Card Reader Memory support Four (4) DIMM slots 4GB DDR3 Hard drive 320GB SATA Hard Disk Drive Processors Intel Core i5 processors; Intel Pentium processors Chipset Intel Q57 Express supporting Intel Core processors with vPro Technology Operating System FreeDOS Total Price Rs. 66500/-