backside cache meaning

• [Computer]
  <hardware, processor> An implementation of secondary cache memory that allows it to be directly accessed by the CPU.
  
  Backside cache is used by Apple Computers, Inc. in their PowerPC G3 processor. Previous PowerPC processors used the system bus to access both secondary cache and main memory. In the PowerPC G3 a dedicated bus handles only CPU/cache transactions. This bus can operate faster than the system bus thus improving the overall performance of the processor.
  
  The term apparently derives from the relocation of the secondary cache from the motherboard to the processor card itself, i.e. on the backside of the processor card.

• Accessing level-two, or backside cache at 200 megahertz provides high-speed access to frequently used data.
• The heat comes from the 500 MHz G3 processor with a generous 1 megabyte of performance boosting level 2 backside cache.
• Both include a 512K L2 backside cache, and 32 megabytes of random access memory ( RAM ) which can be expanded up to 192MB.
• There's also 1 megabyte of something called backside cache, a chunk of memory designed to speed up the processing power of the Mac.
• The new machine runs at 250MHz, and includes the same 512K backside cache as the other G3 Macs, with a bus speed of 100MHz.
• Because of improvements like the backside cache, a G3 chip running at a given speed will outperform an older chip at the same or higher speed.
• Power claims that its new machines use a technology called backside cache that make them even faster than Apple's forthcoming machines, which use faster processors.
• We're just afraid of seeming stupid, or filling our brains with gibberish like " 233-MHz PowerPC G3 processor with 512k backside cache ."
• Compared with earlier Macintoshes, however, the new G3 computers are much faster, thanks in part to a faster internal data bus and more special, high-speed memory called backside cache.
• Both of these have faster internal data pathways ( an 83-MHz system bus, in geek parlance ) and a further booster rocket called a 1MB backside cache, features that are lacking on the slower Powerbook.

• "backside cache" meaning in Chinese: 背面快取