Questions and Correct Answers Guaranteed Success
2024/2025
Transistor - correct answer an on/off switch controlled by an electrical signal
Vlsi - correct answer very-large-scale integration is a manufacturing technique by
which many thousands of transistors are combined into a single chip.
Silicon crystal ingot - correct answer a rod composed of a silicon crystal that is
between 8 and 12 inches in diameter and about 12 to 24 inches long.
Wafer - correct answer a slice from a silicon ingot no more than 0.1 inches thick, used
to create chips.
Die - correct answer the individual rectangular sections that are cut from a wafer, more
informally known as chips.
Chips - correct answer the individual sections that are cut from a wafer
Clock rate - correct answer the inverse of the clock period.
Clock cycle - correct answer aka tick, clock tick, clock period, clock, cycle
The time for one clock period, usually of the processor clock, which runs at constant
rate
Cpi - correct answer average number of clock cycles per instruction for a program or
program fragment
,Instruction count - correct answer the number of instructions executed by the program.
Instruction mix - correct answer a measure of the dynamic frequency of instructions
across one or many programs.
Ipc - correct answer inverse of cpi
If ipc = 2, cpi =0.5
Fanout - correct answer the number of transistors connected to an output
Raid - correct answer offer much higher throughput
Redundant array of independent disks
Workload - correct answer a set of programs run on a computer that is either the
actual collection of applications run by a user or constructed from real programs to
approximate such a mix
Typically specifies both the programs and the relative frequencies
Benchmark - correct answer a program selected for use in comparing computer
performance
Spec - correct answer an effort funded and supported by a number of computer
vendors to create standard sets of benchmarks for modern computers system
performance evaluation cooperative
Spec ratio - correct answer normalization that yields a measure
, Dividing the execution time of a reference processor by the execution time of the
evaluated computer normalizes the execution time measurements
Bigger numeric results = faster performance
Amdahl's law - correct answer exec time = (exec time affected/amt of imprv)+ exec
time uneffected
A rule stated that the performance enhancement possible with a given improvement is
limited by the amount that the improved feature is used
A quantitative version of the law of diminishing returns
Mips - correct answer millions of instructions per second. A way of measuring
processor speed.
Clock rate/cpi * 10^6
Execution time - correct answer the most reliable method to evaluate performance
Energy - correct answer the most critical resource of microprocessor design
Eckert and mauchly - correct answer electrical engineers who worked on the eniac in
the 1940's; used vacuum tubes to process data
Van neumann - correct answer creator of edvac (electronic discrete variable automatic
computer)
Storing programs as numbers