Microsoft Windows 7

HP 6300P SFF Intel Core i53470 500GB HDD 7200 SATA Multicard Reader DVDRW 4GB DDR31600 DIMM sng ch Windows 8 Professional 64 bit downgraded to Windows 7 Professional 64 bit 1 Year Warranty United Kingdom UK English localization LX843ETABU Desktops

HP Z400 Workstation: KK719ET#ABUWith its revolutionary new architecture and bold new industrial design; the HP Z400 Workstation helps you accomplish more with every minute of your time and every dollar of your investment. Features - Featuring genuine Windows for a familiar and intuitive environment Work smarter: run more tasks; processes and applications simultaneously with a workstation that brings together and optimizes the latest processors; memory; graphics and storage technologies.- Updated design: with a smart new chassis; quiet acoustics and optional liquid cooling that makes the system even quieter at heavy loads; the HP Z400 showcases HP innovationâ? inside and out. - Designed with the environment in mind: minimize power and cooling costs with ENERGY STAR® qualified systems... Less

PERFORMANCE AT LOW POWER CONSUMPTIONPowerf ul and all-purpose suitable: data management and storage, quick internet surfing thans to its prompt CPU Intel Pentium G2020 2x2.90Ghz, optimized for multi-tasking, with which you can enjoy unmatched efficiency in any kind of use.Furthermore, each component has been selected during assembly for its quality and reliability, in order to obtain a silent and performant configuration. Special attention has been paid to the choice of power supply, wich is the major -but often neglected- cause of noise. This one, very quiet, is 80+ certified: best performance with low power consumptionProduc t specificationsCas eMS-Tech CA-0130 - Micro-ATX TowerPower supply350W 80+ Power SupplyMotherboard Asrock H61M- DGSProcessorIntel Pentium G2020 2x2.90GhzGraphic... Less

MSI AP1920-208UK 18.5 inch Wind Top All-in-One Desktop PC - White (Atom D525, RAM 2GB, HDD 320GB, Windows 7 Home Premium)

Zoostorm Intel Celeron Dual Core E3300 2.4ghz Windows 7 Home Premium PC, 320GB HDD, 2GB Ram, DVDRW, 7871-0031

The HP Omni 100 is simple to set up - just plug it in to turn on a world of connections, entertainment, and productivity. The HP Omni 100 is designed to make your digital life easy, entertaining, and supremely stylish. It's all you need, all in one.