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RISC and CISC and INTEL Pentium
- what is RISC and CISC ?
- What is difference between Pentium 3 and RISC or CISC
in the aspect
of the speed , performance , reliable ??
- I heard that SUN uses RISC processor. Is that right ? and what about HP-UX ?
- Does anyone know the speed comparison between RISC in UNIX and Pentium at any frequency ( MHz ) ?
- If Pentium processor family at very high speed such as pentium four , is faster than RISC processor( in Sun or anything else ) then, why don't we use Pentium 4 to be the SERVER.??
- What is Flash Ram ?? Is it different from Ram on Personal Computer such as 128 Mbytes on My computer ? If so , what is the difference between these ?
Thanks very much in advances.
- What is difference between Pentium 3 and RISC or CISC
in the aspect
of the speed , performance , reliable ??
- I heard that SUN uses RISC processor. Is that right ? and what about HP-UX ?
- Does anyone know the speed comparison between RISC in UNIX and Pentium at any frequency ( MHz ) ?
- If Pentium processor family at very high speed such as pentium four , is faster than RISC processor( in Sun or anything else ) then, why don't we use Pentium 4 to be the SERVER.??
- What is Flash Ram ?? Is it different from Ram on Personal Computer such as 128 Mbytes on My computer ? If so , what is the difference between these ?
Thanks very much in advances.
>>- Does anyone know the speed comparison between RISC in UNIX and Pentium at any frequency ( MHz ) ?
That would be a meaningless comparison. It's like trying to compare pickup truck vs. single-engine aircraft. There are few similarities beyond both being transportation equipment.
RISC vs. CISC is more a religious issue than anything. In the beginning of RISC, it was the beat-all/end-all. But it didn't turn out that way. In fact, RISC developed many new ideas such as pipelining, multiple-execution units, prefetch queues, branch prediction, to name just a few. What has happened is that CISC processor designers found that RISC techniques worked well in CISC designs also. So what you have today is a blurring between what is and is not RISC or CISC. The most advanced CISC CPU today, the P4 looks as much like RISC as it does CISC. The most advanced RISC chips of today (like the SUN SPARC, MIPS, or Intel ITANIUM) look very CISC like. There are few pure-RISC commercial processors out there now, I'd say the HP PA-RISC is among the most "RISC" out there in the commercial market, or perhaps the ARM or RISC CPUs found in Windows CE based handhelds.
That would be a meaningless comparison. It's like trying to compare pickup truck vs. single-engine aircraft. There are few similarities beyond both being transportation equipment.
RISC vs. CISC is more a religious issue than anything. In the beginning of RISC, it was the beat-all/end-all. But it didn't turn out that way. In fact, RISC developed many new ideas such as pipelining, multiple-execution units, prefetch queues, branch prediction, to name just a few. What has happened is that CISC processor designers found that RISC techniques worked well in CISC designs also. So what you have today is a blurring between what is and is not RISC or CISC. The most advanced CISC CPU today, the P4 looks as much like RISC as it does CISC. The most advanced RISC chips of today (like the SUN SPARC, MIPS, or Intel ITANIUM) look very CISC like. There are few pure-RISC commercial processors out there now, I'd say the HP PA-RISC is among the most "RISC" out there in the commercial market, or perhaps the ARM or RISC CPUs found in Windows CE based handhelds.
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Thanks so much.
Neither is a brand or model name so the comparisions you ask for do not exist.
As example, Intel PC microprocessors (called x86) and Motorolla processors are CISC whereas processors like the Intel i860, DEC's ALPHA, and Sun's SPARC chips are RISC.
Flashram is just non-volitile memory. When the power is turned off, it does not lose the information stored in it.