Why do we have limited RAM size?

为什么我们有有限的内存大小？

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The computer’s RAM size largely determines how many programs may run simultaneously without performance degradation.

计算机RAM的大小很多程度上决定了在不降低计算机性能的前提下，能够同时运行的程序数量。 RAM的大小以MB为单位。

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We need to know when working set is approaching the size of RAM.

我们需要知道什么时候工作集接近内存的大小。

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An all-new version of the Ram 1500 full-size pickup helps create some excitement in an otherwise quiet truck segment for 2013.

FORBES: The Hottest New Cars For 2013

By adding the Dodge Ram, GM would be in a stronger position to compete against Ford Motor in full-size pickups.

FORBES: Magazine Article

You'll also get a third-gen Core i5 processor with Intel HD Graphics 4000 (no more specifics on that just yet), 4GB of RAM, a Mini DisplayPort that can output a 2560 x 1440 resolution, a full-size USB 3.0 port and, of course, Windows 8 Pro with support for all your traditional desktop applications.

ENGADGET: Microsoft confirms Surface with Windows 8 Pro pricing: starting at $899 for 64GB version, shipping in January