英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   







請輸入英文單字，中文詞皆可：

cache    音標拼音: [k'æʃ] [kæʃ'e]
n. 高速緩沖存儲器
n. 隱藏所,隱藏的糧食或物資,貯藏物
vt. 隱藏,窖藏

高速緩沖存儲器隱藏所,隱藏的糧食或物資,貯藏物隱藏,窖藏

cache
快速記憶體; 高速緩衝記憶體

cache
高速緩衝記憶體 快取

cache
n 1: a hidden storage space (for money or provisions or weapons)
2: a secret store of valuables or money [synonym: {hoard}, {cache},
{stash}]
3: (computer science) RAM memory that is set aside as a
specialized buffer storage that is continually updated; used
to optimize data transfers between system elements with
different characteristics [synonym: {cache}, {memory cache}]
v 1: save up as for future use [synonym: {hoard}, {stash}, {cache},
{lay away}, {hive up}, {squirrel away}]

cache \cache\ (k[a^]sh), n. [F., a hiding place, fr. cacher to
conceal, to hide.]
1. A hole in the ground, or other hiding place, for
concealing and preserving provisions which it is
inconvenient to carry. --Kane.
[1913 Webster]

2. That which is hidden in a cache[2]; a hoard; a stockpile.
[PJC]

3. (Computers) A form of memory in a computer which has a
faster access time than most of main memory, and is
usually used to store the most frequently accessed data in
main memory during execution of a program.
[PJC]


cache \cache\ (k[a^]sh), v. t.
To store in a cache[1].
[PJC] Cachectic

85 Moby Thesaurus words for "cache":
asylum, backlog, bank, bolt-hole, bosom, bottle up, bundle away,
bury, coffer, conceal, concealment, corner, cover, covert,
coverture, cranny, cubby, cubbyhole, dark corner, den, deposit,
dugout, embosom, file, file and forget, foxhole, funk hole, hide,
hide away, hideaway, hideout, hidey hole, hiding, hiding place,
hoard, hole, hutch, keep hidden, keep secret, lair, lay away,
lay down, lay in, lay in store, lock up, lodge, nest egg, niche,
nook, pack away, plant, put away, recess, refuge, reposit,
repository, reserve, reserve fund, reserve supply, reserves,
reservoir, resource, retreat, salt away, salt down, sanctuary,
savings, seal up, secret place, secrete, sinking fund,
something in reserve, squirrel away, stash, stockpile, store,
store away, stow, stow away, stow down, supply, undercovert,
unexpended balance, vault, warehouse

/kash/ A small fast memory holding
recently accessed data, designed to speed up subsequent access
to the same data. Most often applied to processor-memory
access but also used for a local copy of data accessible over
a network etc.

When data is read from, or written to, {main memory} a copy is
also saved in the cache, along with the associated main memory
address. The cache monitors addresses of subsequent reads to
see if the required data is already in the cache. If it is (a
{cache hit}) then it is returned immediately and the main
memory read is aborted (or not started). If the data is not
cached (a {cache miss}) then it is fetched from main memory
and also saved in the cache.

The cache is built from faster memory chips than main memory
so a cache hit takes much less time to complete than a normal
memory access. The cache may be located on the same
{integrated circuit} as the {CPU}, in order to further reduce
the access time. In this case it is often known as {primary
cache} since there may be a larger, slower {secondary cache}
outside the CPU chip.

The most important characteristic of a cache is its {hit rate}
- the fraction of all memory accesses which are satisfied from
the cache. This in turn depends on the cache design but
mostly on its size relative to the main memory. The size is
limited by the cost of fast memory chips.

The hit rate also depends on the access pattern of the
particular program being run (the sequence of addresses being
read and written). Caches rely on two properties of the
access patterns of most programs: temporal locality - if
something is accessed once, it is likely to be accessed again
soon, and spatial locality - if one memory location is
accessed then nearby memory locations are also likely to be
accessed. In order to exploit spatial locality, caches often
operate on several words at a time, a "{cache line}" or "cache
block". Main memory reads and writes are whole {cache lines}.

When the processor wants to write to main memory, the data is
first written to the cache on the assumption that the
processor will probably read it again soon. Various different
policies are used. In a {write-through} cache, data is
written to main memory at the same time as it is cached. In a
{write-back} cache it is only written to main memory when it
is forced out of the cache.

If all accesses were writes then, with a write-through policy,
every write to the cache would necessitate a main memory
write, thus slowing the system down to main memory speed.
However, statistically, most accesses are reads and most of
these will be satisfied from the cache. Write-through is
simpler than write-back because an entry that is to be
replaced can just be overwritten in the cache as it will
already have been copied to main memory whereas write-back
requires the cache to initiate a main memory write of the
flushed entry followed (for a processor read) by a main memory
read. However, write-back is more efficient because an entry
may be written many times in the cache without a main memory
access.

When the cache is full and it is desired to cache another line
of data then a cache entry is selected to be written back to
main memory or "flushed". The new line is then put in its
place. Which entry is chosen to be flushed is determined by a
"{replacement algorithm}".

Some processors have separate instruction and data caches.
Both can be active at the same time, allowing an instruction
fetch to overlap with a data read or write. This separation
also avoids the possibility of bad {cache conflict} between
say the instructions in a loop and some data in an array which
is accessed by that loop.

See also {direct mapped cache}, {fully associative cache},
{sector mapping}, {set associative cache}.

(1997-06-25)

Cache, OK -- U.S. city in Oklahoma
Population (2000): 2371
Housing Units (2000): 952
Land area (2000): 3.388615 sq. miles (8.776472 sq. km)
Water area (2000): 0.014556 sq. miles (0.037701 sq. km)
Total area (2000): 3.403171 sq. miles (8.814173 sq. km)
FIPS code: 10700
Located within: Oklahoma (OK), FIPS 40
Location: 34.629967 N, 98.625226 W
ZIP Codes (1990): 73527
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Cache, OK
Cache


Cache, UT -- U.S. Census Designated Place in Utah
Population (2000): 37
Housing Units (2000): 16
Land area (2000): 5.660193 sq. miles (14.659831 sq. km)
Water area (2000): 0.346274 sq. miles (0.896845 sq. km)
Total area (2000): 6.006467 sq. miles (15.556676 sq. km)
FIPS code: 09725
Located within: Utah (UT), FIPS 49
Location: 41.836370 N, 112.000202 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Cache, UT
Cache

安裝中文字典英文字典查詢工具!


中文字典英文字典工具:
選擇顏色:
輸入中英文單字

































































英文字典中文字典相關資料:
  • How to Manage and Clear Your Cache and Cookies
    Learn how to clear your browser cache and cookies in minutes Improve your Internet speed and performance by deleting your browser history, cache, and cookies
  • Clear cache cookies - Computer - Google Account Help
    When you use a browser, like Chrome, it saves some information from websites in its cache and cookies Clearing them fixes certain problems, like loading or formatting issues on sites
  • How to Purge Cache in Every Major Browser - Lifewire
    Clearing cache can fix browsing problems, free up space, and remove saved versions of visited pages Clear cache quickly via Ctrl + Shift + Del (Windows) or Command + Shift + Delete (Mac)
  • Cache (computing) - Wikipedia
    Hardware implements cache as a block of memory for temporary storage of data likely to be used again Central processing units (CPUs), solid-state drives (SSDs) and hard disk drives (HDDs) frequently include hardware-based cache, while web browsers and web servers commonly rely on software caching A cache is made up of a pool of entries
  • What is a cache? And why does clearing it fix things? - Zapier
    A cache (pronounced cash, like money) is a storage location on your computer or phone where your browser keeps bits and pieces of websites—things like images, fonts, HTML, CSS, and JavaScript files
  • What Is Cache? Definition, Working, Types, and Importance
    The cache is a temporary data storage location that automatically stores data to reduce retrieval time the next time an app is accessed Click here to learn how it works
  • What Is Cache and How Does It Work? - HowStuffWorks
    Cache technology is the use of a faster but smaller memory type to accelerate a slower but larger memory type It works across all operating systems and web servers
  • How to Clear the Cache and Cookies in Your Web Browser
    Clearing the cache and cookies from a web browser is an important first-step for almost any troubleshooting for internet browsing The 'cache' is a tool used by your internet browser to speed up the page loading process
  • What is a Cache? Cached Meaning Why It Matters | McAfee
    By definition, a cache is a folder of recently visited webpages stored on your computer’s hard drive and maintained by your internet browser In simple terms, caching is the temporary data your browser stores, such as images, page layouts, and scripts, so it can quickly reuse them and help websites load faster the next time you visit
  • What is Cache (Computing)? - TechTarget
    What is a cache? A cache -- pronounced CASH -- is hardware or software that is used to store something, usually data, temporarily in a computing environment It is a small amount of faster, more expensive memory used to improve the performance of recently or frequently accessed data





中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典