| Codenamed
P5, the Intel Pentium was released by Intel
on March 22, 1993 as a replacement to the
80486 processor and originally sold for $878.00. The name comes from the Greek word for "five" and is used because it's the fifth processor in the 80x86
line. It would have been called the 80586 had a US court not ruled that
you cannot trademark a number. The Intel processors were available between speeds of 60MHz and 300MHz, had a 64-bit databus, and had an additional 1.9 million transistors when compared to
the 80486DX (3.1 million). Below is a graphic illustration of the
Pentium processor.
The original Intel Pentium was released using a 273-pin PGA form factor and ran on 5v power. Intel later announced the release of a
second-generation introduced March 7, 1994 included new processors from 75, 90, 100, 120,
133, 150, 166, and 200 MHz. The processors used 296-pin SPGA form factor that is
physically incompatible with the first generation versions. The third-generation of
Pentium processors, code named P55C, were introduced January 1997, which incorporated
the new technology MMX. The Pentium MMX processors were available 166,
200, 233 MHz, and 266 MHz mobile version.Pentium bug
One of the most famous and well known bugs is the Pentium
FPU flaw / bug discovered by a a mathematician in October 1994. This bug
involved the
Pentium incorrectly performing floating-point calculations with certain number
combinations, with errors anywhere from the third digit on up. This issue
does not occur on
120MHz and above Pentium computers but is known to occur on
Intel Pentiums 100MHz and below.
Ways of testing your Pentium CPU to determine if it has the Pentium flaw.
Correct Answer
962,306,957,033 / 11,010,046 = 87,402.6282027341
Incorrect Answer
962,306,957,033 / 11,010,046 = 87,399.5805831329
Correct Answer
4,195,835 / 3,145,727 = 1.33382044913624100
Incorrect Answer
4,195,835 / 3,145,727 = 1.33373906890203759
Another way of testing for this flaw is to use Microsoft Excel
and enter the below formula.
=4195835-((4195835/3145727)*3145727)
When entering this formula you should receive a returned result of 0.
Also see: Socket 4, Socket 5, Processor definitions
|
|
| Resolved |
Were you able to locate the answer to your questions? |
|
|
