Exam 4: Cache Memory

_________ is a random access type of memory that enables one to make a comparison of desired bit locations within a word for a specified match,and to do this for all words simultaneously,thus retrieving a word based on a portion of its contents rather than its address.

When using the __________ technique all write operations made to main memory are made to the cache as well.

One byte equals __________ bits.

The L1 cache is slower than the L3 cache.

The Pentium 4 processor core consists of four major components: fetch / decode unit,out-of-order execution logic,memory subsystem,and __________.

With write back updates are made only in the cache.

For internal memory,the __________ is equal to the number of electrical lines into and out of the memory module.

"Memory is organized into records and access must be made in a specific linear sequence" is a description of __________.

The three performance parameters for memory are: access time,transfer rate,and _________.

The key advantage of the __________ design is that it eliminates contention for the cache between the instruction fetch / decode unit and the execution unit.

Both sequential access and direct access involve a shared read- write mechanism.

From a user's point of view the two most important characteristics of memory are capacity and _____________.

Secondary memory is used to store program and data files and is usually visible to the programmer only in terms of individual bytes or words.

A portion of main memory used as a buffer to hold data temporarily that is to be read out to disk is referred to as a _________.

__________ is the simplest mapping technique and maps each block of main memory into only one possible cache line.

The Pentium 4 _________ component executes micro-operations,fetching the required data from the L1 data cache and temporarily storing results in registers.

In a volatile memory,information decays naturally or is lost when electrical power is switched off.

A typical computer system is equipped with a hierarchy of memory subsystems,some internal to the system and some external.

To achieve greatest performance the memory must be able to keep up with the processor.

__________ memory consists of peripheral storage devices,such as disk and tape.