1. The goals of green computing are reduce the use of hazardous materials, maximize energy efficiency during the product's lifetime, and promote the recyclability or biodegradability of defunct products and factory waste. 2. RAM- temporary and volatile and ROM nonvolatile and permanent storage for data. 3. RFID is technology employs a microchip with an antenna to broadcast its unique identifier and location to receivers. A Retail store may place a microchip on retail items and install in-store readers that track the inventory on the shelves to determine when shelves should be restocked. 4. Control unit-access program instructions, decodes them, and coordinates the flow of data in and out of the arithmetic Logic unit registers, primary storage, and even secondary and various output devices. Arithmetic and logic unit- performs mathematical calculations and makes logical comparisons. 5. Solid state storage technology stores data in memory chips rather than magnetic or optical media. It offers less power, provides faster data access than magnetic data-storage devices, and is less fragile than flash drives. 6. Handheld computers provide ease of portability because of their small size. Smartphone combines the functionality of a mobile phone, camera, web browser, email tool, MP3 player and other devices into a single handheld device. Laptop computer is a personal computer designed for use by mobile users. It is small and light enough to sit on a user’s lap. Notebook computer is an extremely lightweight computer that weighs less than seven pounds and can easily fit in a briefcase. Netbook computers are the smallest, lightest, and least expensive members of the laptop computer family. Tablet computer are portable, lightweight computers with no keyboard that allow you to roam the office, home, or factory floor carrying the device like a clipboard. 7. Three examples of cell phone or smartphone operating systems are iPhone OS, Google android, Microsoft windows mobile.. 8. Saas allows business to subscribe to web-delivered business application software by paying a monthly service charge or a per-use fee. Some advantages are that it has the benefit of being able to easily collaborate with others by sharing documents on the internet. 9. System software-operating systems manages computer hardware and software resources and provides common services for computer programs. Application software (an application) is a set of computer programs designed to permit the user to perform a group of coordinated functions, tasks, or activities.