| slovo | definícia |
18
(gcide) | 18 \18\ adj.
1. one more than seventeen; denoting a quantity consisting of
one more than seventeen and one less than nineteen; --
representing the number eighteen as Arabic numerals
Syn: eighteen, xviii
[WordNet 1.5 +PJC] |
18
(wn) | 18
adj 1: being one more than seventeen [syn: eighteen, 18,
xviii]
n 1: the cardinal number that is the sum of seventeen and one
[syn: eighteen, 18, XVIII] |
| | podobné slovo | definícia |
otočenie o 180 stupňov
(msas) | otočenie o 180 stupňov
- U-turn |
otocenie o 180 stupnov
(msasasci) | otocenie o 180 stupnov
- U-turn |
18th
(encz) | 18th,osmnáctý num: Zdeněk Brož |
do a 180
(encz) | do a 180, |
i18n
(encz) | i18n,zmezinárodnění [zkr.] [it.] internationalisation = i (18 omitted
letters) n |
americká občanská válka v letech 1861-1865
(czen) | americká občanská válka v letech 1861-1865,Civil War Jiří Šmoldas |
antonín dvořák (1841-1904)
(czen) | Antonín Dvořák (1841-1904),Dvorakn: [jmén.] český skladatel Petr Prášek |
bedřich smetana (1824-1884)
(czen) | Bedřich Smetana (1824-1884),Smetanan: [jmén.] český skladatel Petr
Prášek |
boris leonidovič pasternak (1890-1960)
(czen) | Boris Leonidovič Pasternak (1890-1960),Pasternakn: [jmén.] ruský
spisovatel Petr Prášek |
george smith patton (1885-1945)
(czen) | George Smith Patton (1885-1945),Pattonn: [jmén.] americký generál Petr
Prášek |
ivan petrovič pavlov (1849-1936)
(czen) | Ivan Petrovič Pavlov (1849-1936),Pavlovn: [jmén.] ruský fyziolog Petr
Prášek |
jules verne (1828-1905)
(czen) | Jules Verne (1828-1905),Vernen: [jmén.] francouzský spisovatel Petr
Prášek |
louis pasteur (1822-1895)
(czen) | Louis Pasteur (1822-1895),Pasteurn: [jmén.] francouzský chemik a
bakteriolog Petr Prášek |
otočení o 180 stupňů
(czen) | otočení o 180 stupňů,U-turn Martin Ligač |
pablo picasso (1881-1973)
(czen) | Pablo Picasso (1881-1973),Picasson: [jmén.] španělský malíř, grafik a
sochař Petr Prášek |
roald amundsen (1872-1928)
(czen) | Roald Amundsen (1872-1928),Amundsenn: [jmén.] norský polárník, jako
první proplul Severozápadním průjezdem, jako první dosáhl jižního
pólu Petr Prášek |
robert edwin peary (1856-1920)
(czen) | Robert Edwin Peary (1856-1920),Pearyn: [jmén.] americký polárník,
považován za prvního člověka, který dosáhl severního pólu Petr Prášek |
robert falcon scott (1868-1912)
(czen) | Robert Falcon Scott (1868-1912),Scottn: [jmén.] anglický polárník Petr
Prášek |
sir walter scott (1771-1832)
(czen) | sir Walter Scott (1771-1832),Scottn: [jmén.] skotský spisovatel Petr
Prášek |
vilfredo pareto (1848-1923)
(czen) | Vilfredo Pareto (1848-1923),Pareton: [jmén.] italský sociolog a
ekonom Petr Prášek |
william edward parry (1790-1855)
(czen) | William Edward Parry (1790-1855),Parryn: [jmén.] anglický polárník Petr
Prášek |
18th
(gcide) | 18th \18th\ adj.
1. coming next after the seventeenth in a series
Syn: eighteenth
[WordNet 1.5 +PJC] |
C10H18
(gcide) | Rutylene \Ru"ty*lene\, n. (Chem.)
A liquid hydrocarbon, C10H18, of the acetylene series. It
is produced artificially.
[1913 Webster] |
C10H18O
(gcide) | geraniol \ge*ra"ni*ol\, n. [See Geranium.] (Chem.)
A terpene alcohol (C10H18O) which constitutes the principal
part of the oil of palmarosa and the oil of rose. Chemically
it is 3,7-Dimethyl-2,6-octadien-1-ol. It has a sweet rose
odor. --MI11
[PJC]Camphor \Cam"phor\ (k[a^]m"f[~e]r), n. [OE. camfere, F. camphre
(cf. It. canfora, Sp. camfora, alcanfor, LL. canfora,
camphora, NGr. kafoyra`), fr. Ar. k[=a]f[=u]r, prob. fr. Skr.
karp[=u]ra.]
1. A tough, white, aromatic resin, or gum, obtained from
different species of the Laurus family, esp. from
Cinnamomum camphara (the Laurus camphora of
Linn[ae]us.). Camphor, C10H16O, is volatile and
fragrant, and is used in medicine as a diaphoretic, a
stimulant, or sedative.
[1913 Webster]
2. originally, a gum resembling ordinary camphor, obtained
from a tree (Dryobalanops aromatica formerly
Dryobalanops camphora) growing in Sumatra and Borneo;
now applied to its main constituent, a terpene alcohol
obtainable as a white solid C10H18O, called also {Borneo
camphor}, Malay camphor, Malayan camphor, {camphor of
Borneo}, Sumatra camphor, bornyl alcohol, camphol,
and borneol. The isomer from Dryobalanops is
dextrorotatory; the levoratatory form is obtainable from
other species of plants, and the racemic mixture may be
obtained by reduction of camphor. It is used in perfumery,
and for manufacture of its esters. See Borneol.
[1913 Webster +PJC]
Note: The name camphor is also applied to a number of bodies
of similar appearance and properties, as {cedar
camphor}, obtained from the red or pencil cedar
(Juniperus Virginiana), and peppermint camphor, or
menthol, obtained from the oil of peppermint.
[1913 Webster]
Camphor oil (Chem.), name variously given to certain
oil-like products, obtained especially from the camphor
tree.
Camphor tree, a large evergreen tree ({Cinnamomum
Camphora}) with lax, smooth branches and shining
triple-nerved lanceolate leaves, probably native in China,
but now cultivated in most warm countries. Camphor is
collected by a process of steaming the chips of the wood
and subliming the product.
[1913 Webster]eucalyptol \eu`ca*lyp*tol\, n. [eucalyptus + L. oleum oil.]
(Chem.)
A volatile, terpenelike oil (C10H18O), which is the main
constituent of the oil of eucalyptus. It has cockroach
repellent activity and is used as a flavoring aid in
pharmaceuticals. Chemically it is
1,3,3-trimethyl-2-oxabicyclo-[2,2,2]-octane. --MI11
Syn: cineole, cajeputol. [1913 Webster +PJC]
Note: In the 1913 Webster eucalytpol was defined as an oil
"consisting largely of cymene". Cymene
(isopropyltoluene, C10H14) differs from that of the
substance currently called eucalyptol, in having an
unsaturated ring and no oxygen. Para-cymene does occur
in eucalyptus oil as well as some other essential oils.
[PJC] |
C10H18O2
(gcide) | Camphoric \Cam*phor"ic\, a. [Cf. F. camphorique.] (Chem.)
Of, pertaining to, or derived from, camphor.
[1913 Webster]
Camphoric acid, a white crystallizable substance,
C10H16O4, obtained from the oxidation of camphor.
[1913 Webster]
Note: Other acids of camphor are campholic acid, C10H18O2,
and camphoronic acid, C9H12O5, white crystallizable
substances.
[1913 Webster] |
C11H18O2
(gcide) | Undecolic \Un`de*col"ic\, a. [Undecylenic + propiolic.] (Chem.)
Pertaining to, or designating, an acid, C11H18O2, of the
propiolic acid series, obtained indirectly from undecylenic
acid as a white crystalline substance.
[1913 Webster] |
C14H18N2O5
(gcide) | aspartame \aspartame\ n.
1. an artificial sweetener containing an aspartic acid
peptide, (C14H18N2O5); it is 160 times sweeter than
sucrose (cane sugar) and is used as a calorie-free
sweetener. Chemically it is
N-L-[alpha]-aspartyl-L-phenylalanine-1-methyl ester. It is
sold also under the trade name Equal.
[WordNet 1.5] |
C16H18O10
(gcide) | fraxin \frax"in\, n. [From Fraxinus.] (Chem.)
A colorless crystalline substance (C16H18O10) found in the
bark of the ash (Fraxinus), and along with esculin in the
bark of the horse-chestnut. It is structurally a derivative
of a coumarin glucoside. It shows a delicate blue-green
fluorescence in alkaline solutions; -- called also paviin
and fraxoside. --MI-11br/
Syn:
8-([beta]-D-Glucopyranosyloxy)-7-hydroxy-6-methoxy-2H-1-benzopyran-2-one;
also,
7,8-dihydroxy-6-methoxy-coumarin-8-[beta]-D-glucoside;
fraxetin-8-glucoside.
[1913 Webster +PJC] |
C18H12
(gcide) | Chrysene \Chry"sene\, n. [Gr. chryso`s gold.] (Chem.)
One of the higher aromatic hydrocarbons of coal tar, allied
to naphthalene and anthracene. It is a white crystalline
substance, C18H12, of strong blue fluorescence, but
generally colored yellow by impurities.
[1913 Webster] |
C18H19NO2
(gcide) | Apocodeine \Ap`o*co*de"ine\, n. [Pref. apo- + codeine.] (Chem.)
An alkaloid, C18H19NO2, prepared from codeine. In its
effects it resembles apomorphine.
[Webster 1913 Suppl.] |
C18H21NO3
(gcide) | Codeine \Co"deine\ (k[=o]"d[=e]n or k[-o]*d[=e]"[i^]n), n. [Gr.
kw`deia poppy head: cf. F. cod['e]ine.] (Chem.)
One of the opium alkaloids; a white crystalline substance,
C18H21NO3, similar to and regarded as a derivative of
morphine, but much feebler in its action; -- called also
codeia.
[1913 Webster] |
C18H27O3N
(gcide) | Pepper \Pep"per\ (p[e^]p"p[~e]r), n. [OE. peper, AS. pipor, L.
piper, fr. Gr. pe`peri, pi`peri, akin to Skr. pippala,
pippali.]
1. A well-known, pungently aromatic condiment, the dried
berry, either whole or powdered, of the Piper nigrum.
[1913 Webster]
Note: Common pepper, or black pepper, is made from the
whole berry, dried just before maturity; white pepper
is made from the ripe berry after the outer skin has
been removed by maceration and friction. It has less of
the peculiar properties of the plant than the black
pepper. Pepper is used in medicine as a carminative
stimulant.
[1913 Webster]
2. (Bot.) The plant which yields pepper, an East Indian woody
climber (Piper nigrum), with ovate leaves and apetalous
flowers in spikes opposite the leaves. The berries are red
when ripe. Also, by extension, any one of the several
hundred species of the genus Piper, widely dispersed
throughout the tropical and subtropical regions of the
earth.
[1913 Webster]
3. Any plant of the genus Capsicum (of the Solanaceae
family, which are unrelated to Piper), and its fruit;
red pepper; chili pepper; as, the bell pepper and the
jalapeno pepper (both Capsicum annuum) and the
habanero pepper (Capsicum chinense); . These contain
varying levels of the substance capsaicin (C18H27O3N),
which gives the peppers their hot taste. The habanero is
about 25-50 times hotter than the jalapeno according to a
scale developed by Wilbur Scoville in 1912. See also
Capsicum and http://www.chili-pepper-plants.com/.
[1913 Webster + PJC]
Note: The term pepper has been extended to various other
fruits and plants, more or less closely resembling the
true pepper, esp. to the common varieties of
Capsicum. See Capsicum, and the Phrases, below.
[1913 Webster]
African pepper, the Guinea pepper. See under Guinea.
Cayenne pepper. See under Cayenne.
Chinese pepper, the spicy berries of the {Xanthoxylum
piperitum}, a species of prickly ash found in China and
Japan.
Guinea pepper. See under Guinea, and Capsicum.
Jamaica pepper. See Allspice.
Long pepper.
(a) The spike of berries of Piper longum, an East Indian
shrub.
(b) The root of Piper methysticum (syn. {Macropiper
methysticum}) of the family Piperaceae. See Kava.
Malaguetta pepper, or Meleguetta pepper, the aromatic
seeds of the Amomum Melegueta, an African plant of the
Ginger family. They are sometimes used to flavor beer,
etc., under the name of grains of Paradise.
Red pepper. See Capsicum.
Sweet pepper bush (Bot.), an American shrub ({Clethra
alnifolia}), with racemes of fragrant white flowers; --
called also white alder.
Pepper box or Pepper caster, a small box or bottle, with
a perforated lid, used for sprinkling ground pepper on
food, etc.
Pepper corn. See in the Vocabulary.
Pepper elder (Bot.), a West Indian name of several plants
of the Pepper family, species of Piper and Peperomia.
Pepper moth (Zool.), a European moth (Biston betularia)
having white wings covered with small black specks.
Pepper pot, a mucilaginous soup or stew of vegetables and
cassareep, much esteemed in the West Indies.
Pepper root. (Bot.). See Coralwort.
pepper sauce, a condiment for the table, made of small red
peppers steeped in vinegar.
Pepper tree (Bot.), an aromatic tree (Drimys axillaris)
of the Magnolia family, common in New Zealand. See
Peruvian mastic tree, under Mastic.
[1913 Webster]Capsicum \Cap"si*cum\ (k[a^]p"s[i^]*k[u^]m), n. [NL., fr. L.
capsa box, chest.] (Bot.)
A genus of plants of many species, producing capsules or dry
berries of various forms, which have an exceedingly pungent,
biting taste, and when ground form the red or Cayenne pepper
of commerce.
[1913 Webster]
Note: The most important species are Capsicum baccatum or
bird pepper, Capsicum fastigiatum or chili pepper,
Capsicum frutescens or spur pepper (from which
tabasco is obtained), Capsicum chinense, which
includes the fiery-hot habanero pepper, and {Capsicum
annuum} or Guinea pepper, which includes the bell
pepper, the jalapeno pepper, the cayenne pepper, and
other common garden varieties. The fruit is much used,
both in its green and ripe state, in pickles and in
cookery. These contain varying levels of the substance
capsaicin (C18H27O3N), which gives the peppers
their hot taste. The habanero is about 25-50 times
hotter than the jalapeno according to a scale developed
by Wilbur Scoville in 1912. See also Cayenne pepper,
pepper and http://www.chili-pepper-plants.com/.
[1913 Webster + PJC]
3. Any plant of the genus Capsicum (of the Solanaceae
family, which are unrelated to Piper), and its fruit;
red pepper; chili pepper; as, the bell pepper and the
jalapeno pepper (both Capsicum annuum) and the
habanero pepper (Capsicum chinense); .
[1913 Webster + PJC] |
C18H30N2O2
(gcide) | butacaine \butacaine\ n.
a white crystalline ester (C18H30N2O2) that is applied to
mucous membranes as a topical anesthetic. Chemically it is
3-(di-n-butylamino)-1-propanol 4-aminobenzoate
(H2N.C6H4.CO.O.(CH2)3N(C4H9)2). It is usually used as the
sulfate salt.
Syn: butacaine sulfate.
[WordNet 1.5 +PJC] |
C18H34O3
(gcide) | Palmic \Pal"mic\, a. [Cf. F. palmique.] (Chem.)
Of, pertaining to, or derived from, the castor-oil plant
(Ricinus communis, or Palma Christi) and other species of
the family Euphorbiaceae; -- formerly used to designate an
acid now called ricinoleic acid (d-12-hydroxyoleic acid,
C18H34O3). [Obsoles.]
[1913 Webster]ricinoleic acid \ric`in*o"le*ic ac"id\, n. (Chem.)
An organic acid (C18H34O3) obtained from the castor-oil
plant (Ricinus communis, or Palma Christi) and other
species of the family Euphorbiaceae; chemicaly it is
d-12-hydroxyoleic acid
(CH3(CH2)5.CH(OH).CH2.CH=CH.(CH2)7COOH). Formerly called
palmic acid.
[1913 Webster +PJC]Ricinoleic \Ric`in*o"le*ic\, a. (Chem.)
Pertaining to, or designating, a fatty acid analogous to
oleic acid, obtained from castor oil as an oily substance,
C18H34O3 with a harsh taste. Formerly written ricinolic
and formerly referred to as palmic.
[1913 Webster +PJC] |
C8H18
(gcide) | octane \oc"tane\ ([o^]k"t[=a]n), n. [See Octa-] (Chem.)
Any one of a group of metametric hydrocarbons (C8H18) of
the methane (paraffin) series. The most important is a
colorless, volatile, inflammable liquid, found in petroleum,
and a constituent of gasoline or ligroin.
[1913 Webster +PJC]dibutyl \di*bu"tyl\ (d[-i]*b[=u]"t[i^]l), n. [Pref. di- +
butyl.] (Chem.)
A liquid hydrocarbon, C8H18, of the alkane series, being
one of several octanes, and consisting of two butyl radicals.
Cf. Octane.
[1913 Webster] |
C9H18
(gcide) | Nonylene \Non"y*lene\, n. [Nonane + ethylene.] (Chem.)
Any one of a series of metameric, unsaturated hydrocarbons
C9H18 of the ethylene series.
[1913 Webster] |
C9H18O
(gcide) | Nonone \Non"one\, n. [Nonane + -one, suffix denoting the third
degree of unsaturation.] (Chem.)
1. Any one of several metameric unsaturated hydrocarbons
(C9H14) of the valylene series. [archaic?]
[1913 Webster]
2. Any of several isomeric ketones (C9H18O) conceptually
derived from nonane by substituting an oxygen for two
hydrogen atoms on one of the non-terminal carbon atoms.
[PJC] |
18-karat gold
(wn) | 18-karat gold
n 1: an alloy that contains 75 per cent gold |
180
(wn) | 180
adj 1: being ten more than one hundred seventy [syn: {one
hundred eighty}, 180, clxxx] |
180th
(wn) | 180th
adj 1: the ordinal number of one hundred eighty in counting
order [syn: hundred-and-eightieth, 180th] |
1820s
(wn) | 1820s
n 1: the decade from 1820 to 1829 |
1830s
(wn) | 1830s
n 1: the decade from 1830 to 1839 |
1840s
(wn) | 1840s
n 1: the decade from 1840 to 1849 |
1850s
(wn) | 1850s
n 1: the decade from 1850 to 1859 |
1860s
(wn) | 1860s
n 1: the decade from 1860 to 1869 |
1870s
(wn) | 1870s
n 1: the decade from 1870 to 1879 |
1880s
(wn) | 1880s
n 1: the decade from 1880 to 1889 [syn: eighties, 1880s] |
1890s
(wn) | 1890s
n 1: the decade from 1890 to 1899 [syn: nineties, 1890s] |
18th
(wn) | 18th
adj 1: coming next after the seventeenth in position [syn:
eighteenth, 18th] |
atomic number 18
(wn) | atomic number 18
n 1: a colorless and odorless inert gas; one of the six inert
gases; comprises approximately 1% of the earth's atmosphere
[syn: argon, Ar, atomic number 18] |
war of 1812
(wn) | War of 1812
n 1: a war (1812-1814) between the United States and England
which was trying to interfere with American trade with
France |
1802
(foldoc) | 1802
An 8-bit microprocessor manufactured as CDP1802
by HARRIS Semiconductor. It has been around for ten years
at least and is ideally suited for embedded applications.
Some of its features are: 8-bit parallel organisation with
bidirectional data bus and multiplexed address bus; static
design -- no minimum clock rate; bit-programmable output
port; four input pins which are directly tested by branch
instructions; flexible programmable I/O mode; single-phase
clock, with on-chip oscillator; 16 x 16 register matrix to
implement multiple program counters, pointers, or
registers
(1995-11-21)
|
80186
(foldoc) | Intel 80186
80186
A microprocessor developed by Intel circa
1982. The 80186 was an improvement on the Intel 8086 and
Intel 8088. As with the 8086, it had a 16-bit {external
bus} and was also available as the Intel 80188, with an
8-bit external data bus. The initial clock rate of the
80186 and 80188 was 6 MHz. They were not used in many
computers, but one notable exception was the Mindset, a very
advanced computer for the time. They were used as {embedded
processors}.
One major function of the 80186/80188 series was to reduce the
number of chips required.
"To satisfy this market, we defined a processor with a
significant performance increase over the 8086 that also
included such common peripheral functions as
software-controlled wait state and chip select logic, three
timers, priority interrupt controller, and two channels of DMA
(direct memory access). This processor, the 80186, could
replace up to 22 separate VLSI (very large scale integration)
and TTL (transistor-transistor logic) packages and sell for
less than the cost of the parts it replaced."
-- Paul Wells of Intel Corporation writing in Byte (reference
below)
New instructions were also introduced as follows:
ENTER Make stcak frame for procedure parameters
LEAVE High-level procedure exit
PUSHA Push all general registers
POPA Pop all general registers
BOUND Check array index against bounds
IMUL Signed (integer) multiply
INS Input from port to string
OUTS Output string to port
["The Evolution of the iAPX 286", Bob Greene, Intel
Corporation, PC Tech Journal, December 1984, page 134].
["The 80286 Microprocessor", Paul Wells, Intel Corporation,
Byte, November 1984, p. 231].
(1999-05-10)
|
80188
(foldoc) | Intel 80188
80188
A version of the Intel 80186 with an 8 bit
external data bus (instead of 16 bit). This makes it cheaper
to connect to peripherals.
(1995-01-13)
|
cdp1802
(foldoc) | CDP1802
A single-chip implementation of the RCA 1802
architecture.
(2022-02-11)
|
hitachi hd64180
(foldoc) | Hitachi HD64180
A processor family which adds peripherals and an
MMU to the Zilog Z80.
(1995-10-06)
|
i18n
(foldoc) | internationalisation
globalisation
i18n
internationalization
(i18n, globalisation, enabling, software
enabling) The process and philosophy of making software
portable to other locales.
For successful localisation, products must be technically
and culturally neutral. Effective internationalisation
reduces the time and resources required for localisation,
improving time-to-market abroad and allowing {simultaneous
shipment}. In orther words, internationalisation abstracts
out local details, localisation specifies those details for a
particular locale.
Technically this may include allowing {double-byte character
sets} such as unicode or Japanese, local numbering, date and
currency formats, and other local format conventions.
It also includes the separation of user interface text
e.g. in dialog boxes and menus. All the text used by an
application may be kept in a separate file or directory, so
that it can be translated all at once. User interfaces may
require more screen space for text in other languages.
The simplest form of internationalisation may be to make use
of operating system calls that format time, date and
currency values according to the operating system's
configuration.
The abbreviation i18n means "I - eighteen letters - N".
(1999-06-28)
|
intel 80186
(foldoc) | Intel 80186
80186
A microprocessor developed by Intel circa
1982. The 80186 was an improvement on the Intel 8086 and
Intel 8088. As with the 8086, it had a 16-bit {external
bus} and was also available as the Intel 80188, with an
8-bit external data bus. The initial clock rate of the
80186 and 80188 was 6 MHz. They were not used in many
computers, but one notable exception was the Mindset, a very
advanced computer for the time. They were used as {embedded
processors}.
One major function of the 80186/80188 series was to reduce the
number of chips required.
"To satisfy this market, we defined a processor with a
significant performance increase over the 8086 that also
included such common peripheral functions as
software-controlled wait state and chip select logic, three
timers, priority interrupt controller, and two channels of DMA
(direct memory access). This processor, the 80186, could
replace up to 22 separate VLSI (very large scale integration)
and TTL (transistor-transistor logic) packages and sell for
less than the cost of the parts it replaced."
-- Paul Wells of Intel Corporation writing in Byte (reference
below)
New instructions were also introduced as follows:
ENTER Make stcak frame for procedure parameters
LEAVE High-level procedure exit
PUSHA Push all general registers
POPA Pop all general registers
BOUND Check array index against bounds
IMUL Signed (integer) multiply
INS Input from port to string
OUTS Output string to port
["The Evolution of the iAPX 286", Bob Greene, Intel
Corporation, PC Tech Journal, December 1984, page 134].
["The 80286 Microprocessor", Paul Wells, Intel Corporation,
Byte, November 1984, p. 231].
(1999-05-10)
|
intel 80188
(foldoc) | Intel 80188
80188
A version of the Intel 80186 with an 8 bit
external data bus (instead of 16 bit). This makes it cheaper
to connect to peripherals.
(1995-01-13)
|
is-13818
(foldoc) | IS-13818
The International Standard for MPEG-2
compression.
(1999-01-06)
|
pc-1834
(foldoc) | PC-1834
An IBM PC-like computer, using a K1810 WM 86
Intel 8086 clone from the formerly known Eastern bloc,
introduced in 1988.
(2004-03-24)
|
rca 1802
(foldoc) | RCA 1802
(Or "COSMAC") An extremely simple microprocessor
architecture, fabricated by
RCA, Harris and others. These were the first CMOS
microprocessors and were produced
as the two-chip CDP1801R and CDP1801U, and later combined into the
single-chip CDP1802.
The CDP1802 ran at 6.4 MHz at 10V (very fast for 1974). It
could be suspended with the clock stopped. It was an 8-bit
processor, with 16-bit addressing. Simplicity was the primary
design goal, and in that sense it was one of the first RISC
chips. It had sixteen 16-bit registers, which could be
accessed as thirty-two 8-bit registers, and an accumulator D
used for arithmetic and memory access - memory to D, then D to
registers and vice versa, using one 16-bit register as an
address. This led to one person describing the 1802 as having
32 bytes of RAM and 65535 I/O ports. A 4-bit control
register P selected any one general register as the {program
counter}, while control registers X and N selected registers
for I/O Index and the operand for the current instruction.
All instructions were 8 bits - a 4-bit op code (total of 16
operations) and 4-bit operand register stored in N. There
was no real conditional branching, no subroutine support
and no actual stack but these could be implemented by clever
use of registers, e.g. changing P to another register allowed
jump to a subroutine. Similarly, on an interrupt P and X were
saved, then R1 and R2 were selected for P and X until an RTI
restored them.
The RCA 1805 was an enhanced version.
The 1802 was used in the COSMAC (VIP?) microcomputer kit,
some video games from RCA and Radio Shack, and the
ETI-660 computer.
It was chosen for the Galileo space probes as it was also
fabricated in Silicon on Sapphire, giving radiation
and static resistance ideal for space operation.
More history (http://cosmacelf.com).
(2002-04-09)
|
rca 1805
(foldoc) | RCA 1805
A later, enhanced version of the RCA 1802. It added several
Forth language primitives.
(1994-11-16)
|
rfc 1823
(foldoc) | RFC 1823
The RFC defining the C language
application program interface to the {Lightweight Directory
Access Protocol}.
(rfc:1823).
(1996-11-28)
|
rfc 1825
(foldoc) | RFC 1825
The RFC describing security
mechanisms for Internet Protocol version 4 and {IP version
6} and the services that they provide.
(rfc:1825).
(1997-07-09)
|
rfc 1831
(foldoc) | RFC 1831
The RFC describing ONC RPC.
(2003-06-04)
|
rfc 1861
(foldoc) | RFC 1861
The RFC defining {Simple Network
Paging Protocol}. See also RFC 1568.
(rfc:1861).
(1997-04-25)
|
z180
(foldoc) | Z180
An 8-bit microprocessor, code compatible with the
Zilog Z80 and based on a design from Hitachi which is in
turn based on the Zilog Z80.
[Manufacturer?]
(1995-04-22)
|
oc18
(vera) | OC18
Optical Carrier level 18 [933,12 Mbps] (SONET, STM-6), "OC-18"
|
|