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multithreading    
多线程

多线程

multithreading
多(执行)路线(操作);多流(操作) M/T

multithreading
多线

Sharing a single {CPU} between multiple tasks (or
"threads") in a way designed to minimise the time required to
switch threads. This is accomplished by sharing as much as
possible of the program execution environment between the
different threads so that very little state needs to be saved
and restored when changing thread.

Multithreading differs from {multitasking} in that threads
share more of their environment with each other than do tasks
under multitasking. Threads may be distinguished only by the
value of their {program counters} and {stack pointers} while
sharing a single {address space} and set of {global
variables}. There is thus very little protection of one
thread from another, in contrast to multitasking.

Multithreading can thus be used for very fine-grain
multitasking, at the level of a few instructions, and so can
hide {latency} by keeping the processor busy after one thread
issues a long-latency instruction on which subsequent
instructions in that thread depend.

A {light-weight process} is somewhere between a thread and a
full process.

{TL0} is an example of a threaded machine language.
{Dataflow} computation (E.g. {Id} and {SISAL}) is an extreme
form of multithreading.

(1997-12-23)


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  • CBSE Class 11 Biology Chapter 13 - Photosynthesis in Higher Plants - Toppr
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    Chemically photosynthesis is a redox reaction During photosynthesis, two substrates (carbon dioxide and water) react in presence of light to produce two products (carbohydrates and oxygen) The water is oxidized in presence of light (photolysis) to release oxygen, whereas the carbon dioxide is reduced in dark to carbohydrates using energy trapped during light reaction
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    Photosynthesis is a redox process It uses two substrates - water and carbon dioxide During photosynthesis, water is oxidised into oxygen and carbon dioxide is reduced to sugars The oxidation of water occurs during the light reaction and reduction of carbon dioxide occurs during the dark reaction
  • Write the various steps of photosynthesis. - Toppr
    Photosynthesis in plants is of 3 steps, occurring in chloroplast: Absorption of light, Conversion of light energy into chemical energy and splitting of water molecules, Carbon dioxide is reduced to carbohydrates Was this answer helpful?
  • Write any five significances of photosynthesis. - Toppr
    Significance of photosynthesis- 1) Photosynthesis is a physiological process which serves as the driving and vital force to obtain food and fuel for all non-photosynthetic organisms in universe 2) Organic (carbohydrates) obtained by photosynthesis are basically used to synthesise fats, proteins, nucleoproteins, pigments, enzymes, vitamins, cellulose, organic acids etc 3) Carbohydrates
  • Write a simple experiment to demonstrate that chlorophyll is . . . - Toppr
    That the chlorophyll is also an essential requirement for photosynthesis can be shown by testing starch in a variegated leaf Only green portions of the leaf show positive starch test Was this answer helpful?
  • List out the materials required and the procedure to be . . . - Toppr
    List out the materials required and the procedure to be followed to prove that "Carbon dioxide is essential for Photosynthesis"





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