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Why was Pinball removed from Windows Vista? ZT

Why was Pinball removed from Windows Vista? ZT# PDA - 掌中宝

N*g2012-12-19 08:12

1 楼

☆─────────────────────────────────────☆
rainyheart (淳哥) 于 (Wed Jul 15 11:39:48 2009, 美东) 提到:
发信人: rainyheart (淳哥), 信区: FleaMarket
标题: 【求购】 Quickbooks 2009 for MAC $105
发信站: BBS 未名空间站 (Wed Jul 15 11:31:15 2009, 美东)
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买卖双方谁承担邮寄损失(required if not code only):
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广告的有效期:
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物品来源:
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p*52012-12-19 08:12

2 楼

从精华区看到的，第一个link说的好玄啊，是真的吗？
http://www.sideroad.com/Mortgage/bi-weekly-mortgage-payment.htm
发信人: erdos (大宗师), 信区: Living
标题: Re: 求教：这事有人做过吗？
发信站: Unknown Space - 未名空间 (Thu Apr 21 00:35:20 2005) WWW-POST
It is like a reversed process as you get interest from bank. The more
frequently they do a recalc., the more interest you get. So you do save more
money by paying more frequently but I do not think it will save much.
If you want to quantify, try this:
Assuming a loan of 400K, 30 Year fix at 5%, you can figure out the total
interest you would have paid by end of year 30 is $373023 by employing the
function: cumipmt(5%/12, 360, 400K, 1, 360, 0) in Excel;
and you monthly payment is: $2147.
While change it to payment biweekly, the the total interest you would pay by
end of Year 30 is:
cumipmt(5%/24, 720, 400K, 1, 720, 0)=$372676
and your mmonthly payment is: $1073x2=$2146.
So you can save about $350 over 30 years.
It is quite different as the guy described. I am assuming the two products
have the same interest rate. I am not sure if it involves other change of
parameters or maybe he means something different.

p*w2012-12-19 08:12

3 楼

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2 hours ago

A*r2012-12-19 08:12

4 楼

http://blogs.msdn.com/b/oldnewthing/archive/2012/12/18/10378851
Windows XP was the last client version of Windows to include the Pinball
game that had been part of Windows since Windows 95. There is apparently
speculation that this was done for legal reasons.
No, that's not why.
One of the things I did in Windows XP was port several millions of lines of
code from 32-bit to 64-bit Windows so that we could ship Windows XP 64-bit
Edition. But one of the programs that ran into trouble was Pinball. The 64-
bit version of Pinball had a pretty nasty bug where the ball would simply
pass through other objects like a ghost. In particular, when you started the
game, the ball would be delivered to the launcher, and then it would slowly
fall towards the bottom of the screen, through the plunger, and out the
bottom of the table.
Games tended to be really short.
Two of us tried to debug the program to figure out what was going on, but
given that this was code written several years earlier by an outside company
, and that nobody at Microsoft ever understood how the code worked (much
less still understood it), and that most of the code was completely
uncommented, we simply couldn't figure out why the collision detector was
not working. Heck, we couldn't even find the collision detector!
We had several million lines of code still to port, so we couldn't afford to
spend days studying the code trying to figure out what obscure floating
point rounding error was causing collision detection to fail. We just made
the executive decision right there to drop Pinball from the product.
If it makes you feel better, I am saddened by this as much as you are. I
really enjoyed playing that game. It was the location of the one Windows XP
feature I am most proud of.
Update: Hey everybody asking that the source code be released: The source
code was licensed from another company. If you want the source code, you
have to go ask them.

p*o2012-12-19 08:12

5 楼

半月和两周差的挺远的。

more

【在 p**5 的大作中提到】

: 从精华区看到的，第一个link说的好玄啊，是真的吗？
: http://www.sideroad.com/Mortgage/bi-weekly-mortgage-payment.htm
: 发信人: erdos (大宗师), 信区: Living
: 标题: Re: 求教：这事有人做过吗？
: 发信站: Unknown Space - 未名空间 (Thu Apr 21 00:35:20 2005) WWW-POST
: It is like a reversed process as you get interest from bank. The more
: frequently they do a recalc., the more interest you get. So you do save more
: money by paying more frequently but I do not think it will save much.
: If you want to quantify, try this:
: Assuming a loan of 400K, 30 Year fix at 5%, you can figure out the total