aaaa12345
If you are not going to transport the laptop by carrying it a lot i.e to school/college/work and you do not need it for any intense programs or video gaming then you would probably be better suited to a regular macbook. Even if you want more RAM or Hard drive capacity this could be done at the point of purchase for less than the more expensive Air model.
1. Is it OK to purchase a certified refurbished Macbook Pro from apple or any other cites?
If you buy it directly from Apple it is like new, mint condition. It comes with the same warranty as a new one. They also have the same options for extended coverage. Only Apple sells officially refurbished Macs. Any third party selling one is not selling a recognized refurbished Mac. They are simply used computers they may or may not have cleaned up and labeling them as refurbished. They do not have the same warranty coverage as one bought directly from Apple. Buying a refurbished Mac has several advantages over new. It has been inspected and repaired if necessary by a professional technician. A new one has not been inspected unless it happened to be a random sample. It costs less but has all the benefits of new as mentioned above. If you are lucky you get a bonus. Sometimes that refurbished unit was a build to order model. So it may come with more RAM, faster CPU, more storage, &c than the model it started from. The downsides of buying refurbished. You do not get to brag about it being new when you bought it. Okay you can lie about it. It comes in a brown box instead of the original packaging. Unless they changed this.
2. Apple: Yes, the older Magic Keyboard does work with the 2021 iPad Pro (but it might not fit so well when you close it)
Apple has updated a support page for its iPad Pro Magic Keyboard to clarify that last year's attachable keyboard model does fit the just announced 12.9-inch iPad Pro. But it admits that the slightly thicker dimensions of the new 12.9-inch iPad Pro, announced at last week's Spring Loaded event, mean that last year's Magic Keyboard wo not perfectly fit the new iPad Pro. The keyboard is "functionally compatible" with the new iPad Pro, it said, but it might be a clumsy companion. "The first generation of the Magic Keyboard (A1998) is functionally compatible with the new iPad Pro 12.9-inch (5th generation) with Liquid Retina XDR display," Apple notes. "Due to the slightly thicker dimensions of this new iPad Pro, it's possible that the Magic Keyboard may not precisely fit when closed, especially when screen protectors are applied." It's likely there are only a few people who bought last year's 12.9-inch iPad Pro and spent $350 on the Magic Keyboard and are also already in the market for the 2021 12.9-inch iPad Pro. But it could be annoying for anyone who wanted the new iPad Pro and bought the 2020 Magic Keyboard, which was discounted on Amazon after Apple announced the new iPad Pro. Stocks on Amazon are now depleted. Apple posted the update after a report from The Verge last week stated that the new iPad Pro might not fit the original Magic Keyboard. The main obstacle to a perfect fit between generations of Magic Keyboard and iPad Pro is that the new iPad Pro model is 0.5mm thicker than the 2020 model, which is 5.9mm thick. This mis-match is compounded when screen protectors are used. This Magic Keyboard compatibility issue does not affect the 11-inch iPad Pro.
3. How did Apple fail to tap the business and scientific markets?
The Apple II was a hobbyist's computer that unexpectedly found a business niche. Apple recognised that niche in its design of 1980's Apple III. Specifically, it thought that the following were necessary changes to produce a business computer relative to the contemporaneous II:So I would actually argue the opposite: that intellectually Apple understood business-user needs. It's the delivery that failed; initial batches of the III were extremely prone to failure, and they dragged the III brand down with them. The story is that Jobs himself insisted the machine operate without a fan, and hardware instability resulted.The comment in the book could be an obtuse reference to the fan - silence is a very consumer-centric decision and by killing the machine, eliminated Apple's business play. Development of the III also caused Apple temporarily to cease work on the II, believing that the market would transition; the Apple IIe was not introduced until 1983 so at the time of the IBM PC's introduction Apple's best-selling machine - still the II - suffered by:Subnote: since the quote is about whether IBM recognised "why the Apple II was successful" better than Apple did, I've discounted questions of distribution and branding from the quoted chairman's reasoning. Things inherent to IBM being a business-oriented company with deep roots and Apple being a youthful upstart with relatively ad hoc distribution would have affected the Apple II just as much as the III.I therefore do not think that the difference in brand appeal or sales channels - as relevant as they may be to the PC's success - could possibly substantiate the claim given. They cannot be what the chairman is referring to, so they do not answer the question