Apple introduced the 13' (technically 13.3') MacBook Air at the Macworld Conference & Expo in January 2008 as the thinnest notebook available at that time. Two and a half years later, they began offering the Air in an 11 inch version. The hardware. The most recent Macbook Air comes with Intel’s powerful i5 and i7 processors. While previous generations of Macbook Air were known to be a bit on the slow side, the latest version has all the power you need. The battery life of the Macbook Air has also been boosted — Apple now claims up to 12 hours of battery life.
Environmental Report
Page 13 MacBook Air. You can also migrate information from another Mac during setup. Note: If you don’t use Setup Assistant to transfer information when you first start up your MacBook Air, you can do it later using Migration Assistant. Go to the Applications folder, open Utilities, and double-click Migration Assistant. Chapter 1 Getting Started 11. Step 3: Turn On Your MacBook. 1 To turn on your MacBook, press the power (® ) button briefly (up to 1 second). You hear a tone when you turn on the computer. Don’t press the power button after the startup tone or you might cause the computer to shut down again.
Less known, but no less important are 'background' settings that can speed up, slow down, or even stop your Excel calculations.Overall, there are three basic Excel calculations settings you should be familiar with:Calculation mode - whether Excel formulas are recalculated manually or automatically.Iteration - the number of times a formula is recalculated until a specific numeric condition is met.Precision - the degree of accuracy for a calculation.In this tutorial, we will have a close look at how each of the above settings works and how to change them.Excel automatic calculation vs. When you first open or edit a workbook, Excel automatically recalculates those formulas whose dependent values (cells, values, or names referenced in a formula) have changed. Excel mac manual vs automatic. Manual calculation (calculation mode)These options control when and how Excel recalculates formulas. However, you are free to alter this behavior and even stop calculation in Excel.
Apple believes that improving the environmental performance of our business
starts with our products.The careful environmental management of our products
throughout their life cycles includes controlling the quantity and types of materials
used in their manufacture, improving their energy efficiency, and designing them for
better recyclability.The information below details the environmental performance
of the 13-inch MacBook Airas it relates to climate change, energy efficiency, material
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Greenhouse gas emissions have an impact on the planet’s balance of land, ocean,
and air temperatures. Most of Apple’s corporate greenhouse gas emissions come from
the production, transport, use, and recycling of its products. Apple seeks to minimize
greenhouse gas emissions by setting stringent design-related goals for material and
energy efficiency. The chart below provides the estimated greenhouse gas emissions
Greenhouse Gas Emissions for 13-inch MacBook Air
Because one of the largest portions of product-related greenhouse gas emissions results from
actual use, energy efficiency is a key part of each product’s design. Apple products use power-
efficient components, and software that intelligently powers them down during periods of
inactivity. The result is that MacBook Air is energy efficient right out of the box.
The 13-inch MacBook Air outperforms the stringent requirements of the ENERGY STAR
Program Requirements for Computers Version 5.2. It has been designed to be even more
efficient than previous models, consuming 45 percent less energy than the original
MacBook Air. The following table details the power consumed in different use modes.
Mode100V115V230V
Sleep0.69W0.69W0.78W
Idle—Display off / on1.6W / 6.0W1.6W / 6.0W1.6W / 6.5W
Power adapter efficiency87.7%87.8%87.1%
Model MD760, MD761
June 10, 2013
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Production, 76%
Recycling, 1%
The 13-inch MacBook Airis designed
reduce environmental impact:
Macbook Air 13.3
• Mercury-free LED-backlit display
• PVC-free
Meets ENERGY STAR®
Achieves a Gold rating
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