Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Samsung Series 7 All-in-One 23.6" Desktop 256GB SSD 16GB RAM (Intel Core i7-3770K processor - 3.50GHz with TURBO BOOST to 3.90GHz, 16 GB RAM, 256 GB SSD Hard drive, TOUCHSCREEN, Full HD 1080p 1920x1080 LED backlit display, Windows 8) PC Computer Touch Screen DP700A3D
Product description: Thin profile, clean lines and an elegant aesthetic make this 23.6" Series 7 beautiful to behold. It instantly improves the look of any home or office. Stunningly elegant design - NOTHING you have ever seen or experienced before!, Samsung's elegant and SUPER FAST All-in-One 7 Series PC is packed with Intel's EXTREME-power Core i7 processor i7-3770K QUAD at TURBO BOOST of 3.90GHz , it is topped off with 16 GB of RAM for SUPERIOR performance and an ULTRA FAST 256 GB SSD hard drive! SSD technology utilizes NO seek times on a hard drive thus making the WHOLE system ULTRA fast - even 10,000RPM would not come close to its speed!, Easily navigate through touch using up to 10 points of contact or use gesture control to adjust the volume of your device from across the room, play games and even control the cursor. Plus, content can be viewed great at any angle up to 178-degrees, Comes with a 23.6" FullHD 1080p (1920x1080 resolution) LED backlit screen. It is also equipped with a built-in HD WEBCAM and microphone, 5 USB ports (2 USB 3.0 ports), 3- in-1 (SD/SDHC/SDXC) card, Gigabit Ethernet port, Wireless 802.11b/g/n Wi-Fi, slot-loading DVD +/-RW writer drive, Bluetooth, HMDI input, HDMI output, wireless keyboard/mouse and MUCH MORE. This is all you will EVER need for MANY years!
Product feature: Intel Core i7-3770K at 3.50GHz with TURBO BOOST to 3.90GHz (EXTREME-power processor), 16 GB of RAM (SUPERIOR performance); 2x USB 3.0, 3x USB 2.0, Bluetooth, 256 GB SSD Hard Drive (ULTRA FAST seek times = ULTIMATE speed); 2 HDMI ports - input and output, 23.6" Brilliant FullHD LED-Backlit 1080p TOUCHSCREEN with STUNNING SLIM Design, DVD-RW/CD slot-loading, Stereo Sound Technology speakers, HD web camera, 802.11 a/b/g/n, Wireless keyboard/mouse, etc
Product brand: Samsung
Target attributes: Processor Speed
Answer: attribute: processor speed
value: 3.50ghz
source: product feature
attribute: processor speed
value: 3.50ghz
source: product title