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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

Why you call microprocessor as a microprocessor?

The emitter of a transistor was placed a micrometer distance between two, so it was called a microprocessor. Technology advanced, and the distance was improved to nano meter. Still, they call it micro.

What is an example of a bottleneck effect?

A road with a lot of traffic on such as a motorway and that has four lanes has two lanes closed and thus the traffic piles up as there are four lanes of traffic trying to fit through two lanes. Like pouring water out of a bottle. When you tip it upside down the water sloshes over to the neck of the bottle but piles up and takes time to drain from the bottle rather than a bucket where the water is drained instantaneously.

What goes between a CPU and heat sink?

Heatsink compount or special heat pad. The reason for this is to form a tight thermal bond between the processor (CPU = Central Processing Unit) and heatsink for the best transfer of heat away from the CPU.

The virtual memory addressing capability of 80386 is?

NONE! The 80186 was an advanced version of the 8086 but did not include support for virtual memory. It had a 64K physical address space. The 80286 was the first Intel CPU to support virtual memory but it's capabilities were limited.

Which item help maintain even contact and heat distribution between the CPU and the heat sink?

A good heat sink compound, often known as thermal grease, will provide an inexpensived, readily available, and reliable solution to both the need to maintain even, overall contact between the CPU device's heat-radiating surface and the heat sink itself as well ensuring proper transfer of the heat generated by the device's operation. Typical heat sink compounds are formulated from silicone and are the type most-often recommended by manufacturers and maintenance organizations (primarily due to superior performance and operational life), but there are a variety of types available, produced from petroleum derivatives as well as other substances. Any of the types available for public use tend to be a bit "messy" to work with, at least for the novice; it is for this reason that handy "syringe-style" applicators are popular sellers. A thin coating should be applied to the CPU device's heat-radiating surface (some authorities maintain that it is best to apply thermal grease BOTH there as well as to the heat-sink contact area); any excessive amount that becomes extruded out beyond the contact areas of device and heat sink once the two are firmly attached by the latching device employed in a given configuration will fail to enhance the desired effect of heat transfer, and upon occasion can actually cause problems due a tendency to decompose---and even lose the property of electrical inertness inherent to these products---under such variables as ambient temperature & other environmental conditions, and the user should exercise caution in both the amount of compound used and the areas with which it is allowed to contact. The user should be aware that the properties of thermal greases will degrade over time and require re-application of a new layer; old, broken-down heat sink compound should always be thoroughly removed first by cleaning both surfaces with alcohol or an adequate solvent (carefully-applied acetone---often available amongst everyday household products in the form of fingernail-polish remover---is a favorite product of choice for many experienced technicians

What is a processor clock speed?

Here is a short explanation.

Clock rate or clock speed is the speed at which a microprocessor (CPU) executes instructions. Clock speeds are typically expressed in megahertz (MHz) or gigahertz ((GHz). A single clock cycle (usually shorter than a nanosecond in modern non-embedded microprocessors) toggles between a logical zero and a logical one state.

Sources:

http://www.webopedia.com/TERM/C/clock_speed.html

http://en.wikipedia.org/wiki/Clock_rate

What is the significince of the microprocessor?

In this instance micro means very small in physical size

What three sockets are currently used for Intel processors?

775 - but almost phased out

1156 - for coewi3 nad core i5

1366 - for flagship i7

there are others for the xeon server chips (i think) but that's business and enterprise not consumer

What is better an Intel Pentium III or an Intel Celeron?

Celeron doesn't refer to any particular processor series. Celerons were cost-reduced versions of their Pentium equivalents. The Celeron in question could be based on a Pentium 2, Pentium 3, Pentium 4, Pentium D, or Core 2 Duo. In which case the answers would be "Pentium 3, Usually Pentium 3, Celeron, Celeron, and Celeron", respectively.

Ability to perform certain logic operation?

The Logical operator has the ability to perform certain logic operations on its input. This is used in Boolean algebra.

What is software polling?

When the microprocessor receives an Interrupt Service Request (ISR) on the interrupt line it must determine which of the devices connected to that input sent the request.

Software Polling is one method by which it can do so.

In Software Polling:

A software routine is used to identify the device requesting service. It does so by checking each device to see if it was the one needing service.

Difference between direct addressing mode and indirect addressing mode in detail?

Direct addressing mode means the operand address is contained in the instruction. In the 8085, an example is LDA 1234H, which loads the accumulator with the contents of memory location 1234H. In the 8086/8088, an example is MOV AL,[1234H], which accomplishes nearly the same thing.

Indirect addressing mode means the operand address is contained in a register. In the 8085, an example is LDAX B, which loads the accumulator with the contents of the memory location specified in register BC. In the 8086/8088, an example is MOV AL,[BX], which accomplishes nearly the same thing.

What are threee advantages of multiprocessor systems?

using multiprogramming we can save the time

multiprogramming resources to more than one current application

i.e

we can run multiple applications at a time

that's way we refuses the time

Does Ubuntu support dual processors?

Yes. By default, Ubuntu has supported multi processing since Ubuntu 5, due to the default kernel that loads is and SMP kernel. In other words it assumes a system has multiprocessing. If of course you don't, there is no degradation in performance.

What are the disadvantages of 8085 microprocessor?

It works on 8 bit

lower address lines has to be multiplexed with data lines

Appropriate control signals have to be generated to interface with memory and I/O devices

8 bit processors are slow

Memory is just 64 kb

By Anmol Bhardwaj

SUSCET Tangori Mohali ( India)

How do you determine the type of CPU in your system?

If I am answering your question correctly, to find out what CPU you are using, just go to 'My Computer' and on the left side of the window, there should be a tab that says 'About My Computer' or something like that. That is just XP, i dont know about Vista or Windows 7. If your on mac go to the apple and click about this mac and it will tell you what is in your system.

Name companies that produce Microprocessors?

1. Intel

2. AMD

3. Via Technologies

4. Motorola

5. DEC

6. Transmeta

7. MIPS

8. Texas Instruments

9. National Semiconductor

10. NEC

Is power supply a component of CPU?

CPUs get power from two places-- From the motherboard through the tiny pins on the bottom of the CPU (Which in turn gets power from the 20 / 24 pin connector that connects tot he power supply) and from a 4 / 8 (Only on the newest boards) - pin connector that directly feeds the CPU a very steady supply of power.

Both come from your actual Power Supply.

What is a data encoder?

1. Any program, circuit or algorithm which encodes.

Example usages: "MPEG encoder", "NTSC encoder", "RealAudio encoder".

2. A sensor or transducer for converting rotary motion or position to a series of electronic pulses.

An encoder is a device used to change a signal (such as a bitstream) or data into a code. The code may serve any of a number of purposes such as compressing information for transmission or storage, encrypting or adding redundancies to the input code, or translating from one code to another. This is usually done by means of a programmed algorithm, especially if any part is digital, while most analog encoding is done with analog circuitry.

* A compressor is used to encode data into a smaller form.

* A multiplexer combines multiple inputs into one output.

* A rotary encoder is a sensor, transducer for converting rotary motion or position to a code of electronic pulses.

* A linear encoder is a sensor, transducer or readhead paired with a scale that encodes position. The sensor reads the scale in order to convert the encoded position into an analog or digital signal, which can then be decoded into position by a digital readout (DRO). Motion can be determined by change in position over time. Linear encoder technologies include capacitive, inductive, eddy current, magnetic, and optical. Optical technologies include shadow, self imaging and interferometric. Linear encoders are used in metrology instruments and high precision machining tools ranging from digital calipers to coordinate measuring machines.

In digital audio technology, an encoder is a program that converts an audio WAV file into an MP3 file, a highly-compressed sound file that preserves the quality of a CD recording. (The program that gets the sound selection from a CD and stores it as a WAV file on a hard drive is called a ripper.) An MP3 encoder compresses the WAV file so that it is about one-twelfth the size of the original digital sound file. The quality is maintained by an algorithm that optimizes for audio perception, losing data that will not contribute to perception. The program that plays the MP3 file is called a player. Some audio products provide all three programs together as a package.

In computer technology, encoding is the process of putting a sequence of characters into a special format for transmission or storage purposes.

What is Intel Core i2 Processor?

Intel Core i2 is my friend's laptop..it is special edition.from the store merbau sempak. paya jaras tau x? ha dekat2 situ la.

because it is so powerful. it can be sell in malaysia. only in merbau sempak.

TQ~

Why is it important to insert a processor straight down into a socket rather than sliding the processor in from the side or allowing it to tilt into the socket?

Because the pins on the bottom of the processor can be easily bent (assuming that this is a processor for a PGA (Pin Grid Array) or SPGA (Staggerd PGA) socket. It is worth noting though that a processor for a LGA (Land Grid Array) socket is not as susceptible to this as the there are lands or pads on the bottom of the processor instead of pins; the pins are in the socket. The book that asks this question assumes PGA.

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Very true BUT you can bend the lands in an LGA socket, rendering the socket hence the motherboard useless!