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Microprocessors

A microprocessor is the heart of any computer, whether it is a server, a desktop machine, or a laptop. This single chip contains the arithmetic, control, and logic circuitry necessary to interpret and execute computer programs.

2,578 Questions

The Intel Itaniums use a new instruction set called?

The instruction set is usually called IA-64. This is not to be confused with EM64T, a 64-bit instruction set used in mainstream desktop processors. The answer your looking for is (EPIC)Explicitly Parallel Instruction Computing Chicagocubano strikes again

Who makes the CPU for the emachines?

Well it varies from lots of different categories. To a gaming machine and a regular PC. but according to me mine was made by ASROCK motherboards incorporated. Does that answer your question? If it doesn't contact me for any other questions about PC's. John-Waldron@hotmail.com

Why the twisted pair cable gets heated while transferring the data in a LAN?

Data travels through cable in the same way that electricity travels through wires. There is a very small amount of power used and the cable, although made of highly conductive material, has some resistance. This resistance causes heating. This heating would not normally be noticable, even under conditions of very high data transfer. If you are noticing a significant amount of heating, it's possible that electricity is finding it's way into the cable from another source.

Are you using PoE (power over ethernet) devices on this Cat5 cabling ? If several of these cables are using PoE and are bound together tightly there may be an increase in temperature. Do not use ty wraps, use velcro instead, and don't bind them too tightly.

What are the different brands of CPU?

The two major brands of personal computer CPUs are AMD and Intel. A distant second runner up is Via, which makes CPUs for netbooks and other low-power applications. These all manufacture CPUs using the x86 and x86-64 instruction set.

What are the function and duties of a computer microprocessor?

The main function of this part of the computer is to read scripts and process computer programs.

How do you make a memory map?

in paper draw squares to make a memory map

What is the size of the instruction queue in 8086?

In 8086 the instruction queue is 6 byte long. This is because even the longest 8086 instruction is 6 byte long. Thus it is possible to prefetch even the longest instruction in the instruction set.

Why was the first Intel Celeron processor not as popular as expected?

The original Intel Celeron processor was not as popular as expected because it lacked the level 2 cache to help reduce the price of the processor. With no level 2 cache, the processor acted much slower than the competitor processors.

What is the main difference between RISC and CISC in computer architecture?

Reduced Instruction Set Computer (RISC) vs. Complex Instruction Set Computer (CISC).

(1) CISC computers typically require more than one clock cycle to execute a given instruction

(2) RISC computers typically require only one clock cycle to execute a given instruction

That said, a CISC "opcode" can often perform more than a RISC "opcode". This results in much shorter code for CISC machines which is much easier to read and maintain. That said, CISC computers often have "dead cycles" in which the processor isn't doing anything useful, or is performing a redundant command.

As an example, if one tries to do a MULT memoryLoc1, memoryLoc2, register followed by an ADD memoryLoc1, memoryLoc2, anotherRegister, then a CISC machine must access main memory (or cache) 4 times and perform 2 computations and two moves from the ALU to a register. A RISC machine (while requiring more, but simpler, instructions) would never need to go out to memory for the additional 2 times since the information was already retrieved. Memory access can be a very time expensive operation.

All in all, RISC code is much more optimize-able and significant performance improvements can be realized over CISC.

A certain RISC processor has 12 register windowns and 16 global registers each window has 8 input 16 local and 8 output registers the total number of registers in the processor is?

no of registers of each window = l + g + 2c... where l = local register, g = global registers, c = registers which are common

no of registers in processor are (l + c)w + g... w = no of registers in windows

What type of memory is fastest and used for the CPU cache?

SRAM or Static RAM is the fastest, and most expensive type of RAM available in computers. it is used in the L1, L2, L3, and L4 cache on your processor and chip-set (or however many L-caches your system has). it is the fastest type of RAM because it does not have to be refreshed as frequently as DRAM.

What is the difference between a Solid-state Drive and a computer processor?

one is a hard drive and one is the cpu.......ssd=storage.......processor(cpu)=crunches the data.....

Can a bad power supply cause a CPU to overheat?

Yes, if your fan stops working because your power supply went bad, the CPU could overheat very easily and shut down or even crash resulting in loss of data.

Why is the processor required?

A processor is the thinking mechanism of the computer. While a Hard Drive/Disk holds the data of a computer, the processor is what 'thinks' and determines how to run whatever files are on your computer, as well as keeps them updated. Basically, if you have no processor, your computer will sit with a load of data and take no commands, do no thinking or display information. in simpler words it is the heart of the mahine without it you can't do anything.

What is AMD Cool'n'Quiet?

its a technology which reduces noise and heat and increases energy efficiency

http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_9485_9487%5E10272,00.html

What is the difference between P and T processor?

The T-series has a "Thermal Design Power" (TDP) of 35W, while the P-series has a TDP of 25W. TDP represents a maximum amount of cooling that a computer manufacturer must design the laptop's cooling system to dissipate X amount of heat. Therefore, a laptop with P-series of processor can - in theory - be designed to dissipate 10 less watt. What does that mean to the end user? The manufacturer can use a smaller, quieter fan/heatsink, yet the laptop's CPU can still operate within specification. I want to emphasis "in theory" is because Intel defines that TDP as "The maximum amount of heat which ...processor will operate under normal operating conditions." Which means at the CPU is running at 100% constantly, the CPU will likely output an amount of heat higher than TDP. So the computer manufacturers may not want to cheapen out their heatsinks/fans even if they are using a "P" rather than a "T". (On the other hand, AMD defines TDP to be the maximum power a CPU will draw [under standard clock rate, of course], so for an AMD CPU, it won't draw any higher than the listed TDP at the rated clock. )

What is the advantages of multicore processor over single core processor?

Hyperthreading is cheaper, and will produce less heat. Overall though, dual-cores are better.

Subtract the hexadecimal number 5634 from DAB7 using two's complement addition method?

First, write each number in binary form:

DAB7 = 1101 1010 1011 0111
5634 = 0101 0110 0011 0100

Now take the two's complement of 5634 in two steps:

1's complement: 1010 1001 1100 1011

Add 1 to make the 2's complement: 1010 1001 1100 1100

Now add to find your result:

1101 1010 1011 0111 + 1010 1001 1100 1100 = 1000 0100 1000 0011

And write the result in hex:

8483

This works because the two's complement is the negative of the original number.

Why Intel 8259A PIC is used in microprocessor based system?

The Intel 8259A Programmable Interrupt Controller is used to manage interupts from various sources, source as the hard disk, the floppy disk, the communications ports, the keyboard, the real-time clock, etc., and provide interrupt vectors as specified by the program. Originally designed for the 8086, in 8086 mode it works with the 8086/8088 and its functionality is included in most South Bridge chipsets today.

What does the following acronynms stand for alu CPU?

ALU-Arithmetic logic unit,cpu-central processing unit