Individual Presentation -

Intel Microprocessors

by Thomas Tam


History

Intel was founded in 1968. The original name was M & N Electronics, but was changed to Intel (Integrated Electronics).

Intel i4004 CPU

In 1970, Intel produced the world's first general-purpose microprocessor - the i4004 CPU. It was originally designed for a calculator manufactured by a Japanese company, but after the chip was produced the company rejected it. However, Intel successfully sold it to other companies and earned a lot of money.

Intel i8088 CPU

In 1979, Intel introduced the 8088 processor that sparked the personal computer revolution. Starting from this IBM adopts Intel processors in their personal computers.

Intel OverDrive CPU

If you already have a 486 computer and want a better performance without changing the whole system, you can consider the OverDrive CPU. Basically, there are 3 models: the DX2, DX4 and the Pentium OverDrive. Among these three, Pentium OverDrive offers the highest performance since it features the same core technology as the Pentium processor.

Intel Pentium CPU

At present, Pentium is the most popular CPU since today's software applications demand more and more computing power.

FDIV Bug of Pentium

Pentium chips manufactured before November 1994 have a bug in their floating point unit. It returns less than full precision results for some combinations of divisor and dividend when performing a Floating point DIVision.

Intel Pentium Pro P6 CPU

This year, Intel introduced the latest CPU - the Pentium Pro (P6). It employs the latest technology and is supposed to perform at about twice the speed of the fastest Pentium. However, the P6 has a dark side. It runs 16-bit software slower than a Pentium does. This is because Intel optimized the P6 for 32-bit code, making compromises that severely impair its performance with older, 16-bit code.


Intel's Rivals

There are other chip makers that produce Intel compatible microprocessors:

AMD

AMD holds a second source license to produce Intel CPUs. This is because IBM requires that it can buy the chips from at least two companies. The chips of AMD are either cheaper or faster than those of Intel. And the K5 CPU, which is of the same class as the Pentium, will be released next year. Recently, it has introduced the Am5x86 CPU, which is an upgrade chip for 486 computers.

NexGen

NexGen is the first company to ship a fifth-generation microprocessor, the Nx586, to compete with Pentium. Recently, AMD and NexGen have merged and they will continue the sixth-generation Nx686 design, which is currently in an advanced state of development. The product will be marketed as the AMD-K6 microprocessor.

Cyrix

Initially, Cyrix only produced Intel compatible math coprocessors. Currently, it has released the 6x86 processor. It is faster than Pentium at the same clock rate.


Coming: Intel P7 CPU

Intel, with partner HP, has begun development of the next generation processor, the P7 (compatible with the 80x86 series). It is based on Very Long Instruction Word technology, which may let the 80x86 series architecture finally fade away.