| slovo | definícia |
pentium
(foldoc) | Pentium
Intel's superscalar successor to the 486.
It has two 32-bit 486-type integer pipelines with dependency
checking. It can execute a maximum of two instructions per
cycle. It does pipelined floating-point and performs
branch prediction. It has 16 kilobytes of on-chip
cache, a 64-bit memory interface, 8 32-bit general-purpose
registers and 8 80-bit floating-point registers. It is
built from 3.1 million transistors on a 262.4 mm^2 die with
~2.3 million transistors in the core logic. Its clock rate
is 66MHz, heat dissipation is 16W, integer performance is 64.5
SPECint92, floating-point performance 56.9 SPECfp92.
It is called "Pentium" because it is the fifth in the 80x86
line. It would have been called the 80586 had a US court not
ruled that you can't trademark a number.
The successors are the Pentium Pro and Pentium II.
The following Pentium variants all belong to "x86 Family 6",
as reported by "Microsoft Windows" when identifying the CPU:
Model Name
1 Pentium Pro
2 ?
3 Pentium II
4 ?
5, 6 Celeron or Pentium II
7 Pentium III
8 Celeron uPGA2 or Mobile Pentium III
A {floating-point division bug
(ftp://ftp.isi.edu/pub/carlton/pentium/FAQ)} was discovered in
October 1994.
[Internal implementation, "Microprocessor Report" newsletter,
1993-03-29, volume 7, number 4].
[Pentium based computers, PC Magazine, 1994-01-25].
(2003-09-30)
|
pentium
(jargon) | Pentium
n.
The name given to Intel's P5 chip, the successor to the 80486. The name was
chosen because of difficulties Intel had in trademarking a number. It
suggests the number five (implying 586) while (according to Intel)
conveying a meaning of strength “like titanium”. Among hackers, the plural
is frequently ‘pentia’. See also Pentagram Pro.
Intel did not stick to this convention when naming its P6 processor the
Pentium Pro; many believe this is due to difficulties in selling a chip
with “hex” or “sex” in its name. Successor chips have been called Pentium
II, Pentium III, and Pentium IV.
|
| | podobné slovo | definícia |
unnilpentium
(encz) | unnilpentium, n: |
ununpentium
(wn) | ununpentium
n 1: a radioactive transuranic element [syn: ununpentium,
Uup, element 115, atomic number 115] |
pentium
(foldoc) | Pentium
Intel's superscalar successor to the 486.
It has two 32-bit 486-type integer pipelines with dependency
checking. It can execute a maximum of two instructions per
cycle. It does pipelined floating-point and performs
branch prediction. It has 16 kilobytes of on-chip
cache, a 64-bit memory interface, 8 32-bit general-purpose
registers and 8 80-bit floating-point registers. It is
built from 3.1 million transistors on a 262.4 mm^2 die with
~2.3 million transistors in the core logic. Its clock rate
is 66MHz, heat dissipation is 16W, integer performance is 64.5
SPECint92, floating-point performance 56.9 SPECfp92.
It is called "Pentium" because it is the fifth in the 80x86
line. It would have been called the 80586 had a US court not
ruled that you can't trademark a number.
The successors are the Pentium Pro and Pentium II.
The following Pentium variants all belong to "x86 Family 6",
as reported by "Microsoft Windows" when identifying the CPU:
Model Name
1 Pentium Pro
2 ?
3 Pentium II
4 ?
5, 6 Celeron or Pentium II
7 Pentium III
8 Celeron uPGA2 or Mobile Pentium III
A {floating-point division bug
(ftp://ftp.isi.edu/pub/carlton/pentium/FAQ)} was discovered in
October 1994.
[Internal implementation, "Microprocessor Report" newsletter,
1993-03-29, volume 7, number 4].
[Pentium based computers, PC Magazine, 1994-01-25].
(2003-09-30)
|
pentium 2
(foldoc) | Pentium II
Pentium 2
Intel Corporation's successor to the {Pentium
Pro}.
The Pentium II can execute all the instructions of all the
earlier members of the Intel 80x86 processor family. There
are four versions targetted at different user markets. The
Celeron is the simplest and cheapest. The standard Pentium
II is aimed at mainstream home and business users. The
Pentium II Xeon is intended for higher performance business
servers. There is also a mobile version of the Pentium II
for use in portable computers.
All versions of the Pentium II are packaged on a special
daughterboard that plugs into a card-edge processor slot on
the motherboard. The daughterboard is enclosed within a
rectangular black box called a Single Edge Contact (SEC)
cartridge. The budget Celeron may be sold as a card only
without the box. Consumer line Pentium II's require a 242-pin
slot called Slot 1. The Xeon uses a 330-pin slot called
Slot 2. Intel refers to Slot 1 and Slot 2 as SEC-242 and
SEC-330 in some of their technical documentation. The
daughterboard has mounting points for the Pentium II CPU
itself plus various support chips and cache memory chips.
All components on the daughterboard are normally permanently
soldered in place. Previous generation Socket 7
motherboards cannot normally be upgraded to accept the Pentium
II, so it is necessary to install a new motherboard.
All Pentium II processors have Multimedia Extensions (MMX)
and integrated Level One and Level Two cache controllers.
Additional features include Dynamic Execution and Dual
Independent Bus Architecture, with separate 64 bit system and
cache busses. Pentium II is a superscalar CPU having about
7.5 million transistors.
The first Pentium II's produced were code named Klamath.
They were manufactured using a 0.35 micron process and
supported clock rates of 233, 266, 300 and 333 MHz at a
bus speed of 66 MHz. Second generation Pentium II's, code
named Deschutes, are made with a 0.25 micron process and
support rates of 350, 400 and 450 MHz at a bus speed of 100
MHz.
(http://intel.com/PentiumII/).
(1998-10-06)
|
pentium 3
(foldoc) | Pentium III
Pentium 3
The microprocessor that was Intel Corporation's
successor to the Pentium II, introduced in 1999 with a 500 MHz
clock rate. The Pentim III is very similar to the Pentium II in
architecture. Its external bus can be clocked at 100 or 133
MHz, it can have up to 512 KB of secondary cache, and it
comes in various packages including SECC2 and FC-PGA.
The Pentium III has a P6 Dynamic Execution
microarchitecture, a multi-transaction system bus, and MMX,
like the Pentium II. It adds Dual Independent Bus (DIB)
Architecture, the Intel Processor Serial Number, Internet
Streaming SIMD Extensions and 70 new instructions. Some
versions also include an Advanced Transfer Cache and {Advanced
System Buffering}.
When Intel released a 1.13 GHz version of the Pentium III
processor using a 0.18 micron fabrication process on
2000-07-31, it was the world's highest performance
microprocessor for PCs.
(http://intel.com/PentiumIII).
(2000-10-05)
|
pentium ii
(foldoc) | Pentium II
Pentium 2
Intel Corporation's successor to the {Pentium
Pro}.
The Pentium II can execute all the instructions of all the
earlier members of the Intel 80x86 processor family. There
are four versions targetted at different user markets. The
Celeron is the simplest and cheapest. The standard Pentium
II is aimed at mainstream home and business users. The
Pentium II Xeon is intended for higher performance business
servers. There is also a mobile version of the Pentium II
for use in portable computers.
All versions of the Pentium II are packaged on a special
daughterboard that plugs into a card-edge processor slot on
the motherboard. The daughterboard is enclosed within a
rectangular black box called a Single Edge Contact (SEC)
cartridge. The budget Celeron may be sold as a card only
without the box. Consumer line Pentium II's require a 242-pin
slot called Slot 1. The Xeon uses a 330-pin slot called
Slot 2. Intel refers to Slot 1 and Slot 2 as SEC-242 and
SEC-330 in some of their technical documentation. The
daughterboard has mounting points for the Pentium II CPU
itself plus various support chips and cache memory chips.
All components on the daughterboard are normally permanently
soldered in place. Previous generation Socket 7
motherboards cannot normally be upgraded to accept the Pentium
II, so it is necessary to install a new motherboard.
All Pentium II processors have Multimedia Extensions (MMX)
and integrated Level One and Level Two cache controllers.
Additional features include Dynamic Execution and Dual
Independent Bus Architecture, with separate 64 bit system and
cache busses. Pentium II is a superscalar CPU having about
7.5 million transistors.
The first Pentium II's produced were code named Klamath.
They were manufactured using a 0.35 micron process and
supported clock rates of 233, 266, 300 and 333 MHz at a
bus speed of 66 MHz. Second generation Pentium II's, code
named Deschutes, are made with a 0.25 micron process and
support rates of 350, 400 and 450 MHz at a bus speed of 100
MHz.
(http://intel.com/PentiumII/).
(1998-10-06)
|
pentium ii xeon
(foldoc) | Pentium II Xeon
Xeon
The successor to Intel Corporation's {Pentium
II} processor.
The Xeon has the same P6 core as existing {Pentium
Pro}/Pentium II units, but it supports a 100 MHz system
bus and offers as much as 2 MB of level 2 cache.
(http://intel.com/PentiumII/xeon/home.htm).
(1998-09-09)
|
pentium iii
(foldoc) | Pentium III
Pentium 3
The microprocessor that was Intel Corporation's
successor to the Pentium II, introduced in 1999 with a 500 MHz
clock rate. The Pentim III is very similar to the Pentium II in
architecture. Its external bus can be clocked at 100 or 133
MHz, it can have up to 512 KB of secondary cache, and it
comes in various packages including SECC2 and FC-PGA.
The Pentium III has a P6 Dynamic Execution
microarchitecture, a multi-transaction system bus, and MMX,
like the Pentium II. It adds Dual Independent Bus (DIB)
Architecture, the Intel Processor Serial Number, Internet
Streaming SIMD Extensions and 70 new instructions. Some
versions also include an Advanced Transfer Cache and {Advanced
System Buffering}.
When Intel released a 1.13 GHz version of the Pentium III
processor using a 0.18 micron fabrication process on
2000-07-31, it was the world's highest performance
microprocessor for PCs.
(http://intel.com/PentiumIII).
(2000-10-05)
|
pentium pro
(foldoc) | Pentium Pro
(Known as "P6" during development) Intel's
successor to the Pentium processor, in development Jan 1995,
generally available 1995-11-01. The P6 has an internal
RISC architecture with a CISC-RISC translator, 3-way
superscalar execution, and out-of order execution (or
"speculative execution", which Intel calls "{Dynamic
Execution}"). It also features branch prediction and
register renaming, and is superpipelined (14 stages).
The P6 is made as a two-chip assembly: the first chip is the
CPU and 16 kilobyte first-level cache (5.5 million
transistors) and the other is a 256 (or 512) kilobyte
second-level cache (15 million transistors). The first
version has a clock rate of 133 Mhz and consumes about 20W
of power. It is about twice as fast as the 100 MHz Pentium.
The original 0.35 micron versions of the Pentium Pro released
on 1995-11-01 run at 150 and 166 Mhz for desktop machines and
up to 200 Mhz for servers. Heat disspation is about 20
Watts.
The Pentium Pro is optimised for 32-bit software and runs
16-bit software slower than the original Pentium. The
successor was the Pentium II.
[Performance?]
(1996-03-01)
|
pentium
(jargon) | Pentium
n.
The name given to Intel's P5 chip, the successor to the 80486. The name was
chosen because of difficulties Intel had in trademarking a number. It
suggests the number five (implying 586) while (according to Intel)
conveying a meaning of strength “like titanium”. Among hackers, the plural
is frequently ‘pentia’. See also Pentagram Pro.
Intel did not stick to this convention when naming its P6 processor the
Pentium Pro; many believe this is due to difficulties in selling a chip
with “hex” or “sex” in its name. Successor chips have been called Pentium
II, Pentium III, and Pentium IV.
|
unnilpentium
(elements) | unnilpentium
Symbol: Unp
Atomic number: 105
Atomic weight: (262)
Radioactive transactinide element. Half-life of 1.6s. Discovered in 1970
by Berkeley researchers. So far, seven isotopes have been discovered.
|
ununpentium
(elements) | ununpentium
Symbol: Uup
Atomic number: 115
Atmic weight: 288
Ununpentium is the temporary name of a synthetic superheavy element in
the periodic table that has the temporary symbol Uup and has the atomic
number 115.
It is placed as the heaviest member of group 15 (VA) although a
sufficiently stable isotope is not known at this time that would allow
chemical experiments to confirm its position. It was first observed in
2003 and only about 30 atoms of ununpentium have been synthesized to
date,
with just 4 direct decays of the parent element having been detected.
Two
isotopes are currently known, Uup-287 and Uup-288, with 288Uup having
the
longer half-life of ~100 ms.
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