Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: HNCSMILE C100 Mini PC TV BOX Smart Computer Desktop, RAM 2GB ROM 32GB, Support for HDMI TV, Activated With Windows 8.1 OS
Product description: HNCSMILE® PROFESSIONAL CONSUMER ELECTRONICS PRODUCT: [HNCSMILE-C100]] Brand Introduction HNCSMILE® is a US brand aiming to provide excellent products and service to people all over the world! Hardware Specification: * Operation System: Activated Windows 8.1 Pro OS * Language: Multi-Language support * CPU: Intel Aotm Z3735F * GPU: Intel HD Graphics * RAM: 2GB DDR3L * ROM: 32GBEMMC) can be extended to 128GB with TF Card * Network: IEEE 802.11 a/b/g/n 2.4GHz * WIFI Module: RTL8723 * Power Supply: DC 5V/3A 4.0mm DC-in Interface: * HDMI Output: HDMI1.4b * USB Port: 3 USB Host * Network: 1*RJ45 10M/100M * Power Supply: 1*DC Jack Media Parameter: * Video Container: All audio formats * Audio Out: FLAC/ APE/ WAV HDMI Data Output/ 3.5MM Headsets * Resolution:1080P @30 FPS * H.264 Data Rate :Up to 4 *1080P @30 FPS * Software Extension: WINDOWS application software * DLNA, Miracast Protocol: Miracast * IM Software: WINDOWS application software(IM Software) Small in Size, Big on Features * It may be the worlds smallest computer device, but HNCSMILE-C100 is big on connectivity. * It comes with high performance specification, 3 USB ports for fast data transfer, HDMI and DisplayPort for connecting to the latest displays and HD TVs. Package size: * Dimension:98*98*22.3MM * Net weight:215G * Packing Listing: 1 x Box 1 x HDMI cable 1 x 5V/3A adapter
Product feature: Certification:CCC,CE,FCCNo Li-battery inside, GPU:Intel HD Graphics CPU: Intel Bay Trail CR,Z3735F (Intel? AtomTM quad-core (4C/4T) SoC, optimized 22nm low-power design process (P1271) with Tri-Gate transistors. The Intel Atom Z3735F is a power-efficient quad-core SoC for tablets and mini PC TV box; and improved its predecessor significantly);OS: Windows 8.1 with Bing (HNC C-100-01 is preinstalled but not activated in case of any Customs Issues, we will guide you how to activate win8 after you receive the PC box. );, HNC C-100-01 also with RAM DDR3L 2GB and ROM eMMC 32GB, aster than android smart tv box,same function as your win8 computer support 2.4G Wi-Fi connection, and with Bluetooth 4.0. Support Windows 8.1 on your TV; Support Ethernet, 2.4G Wi-Fi 802.11 a/b/g/n, Based on the Intel Gen7 architecture, Bay Trail supports DirectX 11, With low clock speed of up to 646 MHz, SoC is rated at an SDP of 2.2 W, which indicates a TDP of less than 4 W. Thus, video acceleration and multimedia applications are no problem. HNC- C-100-01 is Not only mini but powerful, not only the powerful CPU, fast than only 4 EUs, supporting new features such as live Windows tiles, metro UI, and access to the Windows Store. It is a latest mini PC device that's ready-to-go out-of-the-box and offers the performance, quality, and value you expect from Intel PC., Compared to AMDs Temash and Kabini APUs, and ARM SoCs for Android systems, HNC-C-100-01 with the Z3735F is more powerful than the normal android TV box.No other OS supported; windows OS is easier for use, and have more functions, can used any where, e.g.: Skype talking and video, home theater, office work Office Software: WORD/ EXCEL/ PPT/ PDF/ TXT/ CHM/ HTML Microsoft Office, WPS, Other office software (Need to install), etc
Product brand: HNCSMILE
Target attributes: Operating System
Answer: attribute: operating system
value: windows
source: product description
attribute: operating system
value: windows
source: product feature
attribute: operating system
value: windows
source: product title