CSCI 340 Test 1 Flash Cards
Over the years memory access speed has consistently increased more rapidly
than processor speed. ANS✔✔ False
In a two-level memory hierarchy the Hit Ratio is defined as the fraction of all
memory accesses found in the slower memory. ANS✔✔ False
Cache memory is invisible to the OS ANS✔✔ True
A __________ organization has a number of potential advantages over a
uniprocessor organization including performance, availability, incremental
growth, and scaling. ANS✔✔ Symmetric multiprocessor
The __________ is a point-to-point link electrical interconnect specification
that enables high-speed communications among connected processor chips.
ANS✔✔ QPI
The Program Status Word contains status information in the form of condition
codes, which are bits typically set by the programmer as a result of program
operation. ANS✔✔ False
It is not possible for a communications interrupt to occur while a printer
interrupt is being processed. ANS✔✔ False
When an external device becomes ready to be serviced by the processor the
device sends a(n) _________ signal to the processor. ANS✔✔ Interrupt
, digital signal processors deal with streaming signals such as audio and video
ANS✔✔ true
The _________ chooses which block to replace when a new block is to be
loaded into the cache and the cache already has all slots filled with other
blocks. ANS✔✔ Replacement Algorithm
Interrupts are provided primarily as a way to improve processor utilization.
ANS✔✔ True
The __________ contains the data to be written into memory and receives the
data read from memory. ANS✔✔ Memory buffer register
In a uniprocessor system, multiprogramming increases processor efficiency by:
ANS✔✔ Taking advantage of time wasted by long wait interrupt handling
The four main structural elements of a computer system are: ANS✔✔
Processor, Main Memory, I/O Modules and System Bus
The ___________ routine determines the nature of the interrupt and performs
whatever actions are needed. ANS✔✔ interrupt handler
The operating system's __________ refers to its inherent flexibility in
permitting functional modifications to the system without interfering with
service. ANS✔✔ ability to evolve
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