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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
What is the difference in processor and procedure?
in the subject LANGUAGE PROCESSOR OR SYSTEM PROCESSOR I WOULD LIKE TO KNOW THE DIFFERENCE BETWEEN PROCESSOR AND PROCEDURE
Its possible that when you took it apart you didn't use the heat transfer "glue" between the metal heat exchanger and the CPU. The fan does need to be blowing toward the heat exchanger too and I assume you removed the dust from the exchanger. Did all that? There is usually at least one more fan in the power supply and sometimes a second one in front. Look at them too.
How are output devices connected to the CPU?
Output devices are connected to the CPU through the northbridge and southbridge, (collectively called the chipset) but they connect to different devices. The northbridge connects to the graphics output, while the southbridge connects to all other output devices (sound, storage, network, and others).
What is difference between processors cores and threads?
A processor "core" is a physical processing unit on the die (the silicon wafer - the actual chip). Older CPUs have only one core per chip. For these, to get two processing units (cores) you must have a motherboard with two separate CPU sockets. With two physical CPUs, communication between the CPUs has to go out one CPU socket, across the motherboard support circuitry, and in through the socket of the second CPU. This is considerably slower than the speed at which things take place inside the circuitry on the same chip. So to increase processing speed, and to lower manufacturing and end-user costs, individual CPUs were designed to have more than one processing unit (cores) on the chip. So a 2-core CPU is very much like having two separate CPUs but is less expensive and can often be faster than two single-core CPUs of the same capability because of the increased communication speed between them, and because they can share common circuitry such as a cache.
A processor "thread" is an execution sequence active in a processor (core). By definition, a single-core CPU can have only one thread active at a time. A 2-core CPU can have up to two threads active (one per core); but only one per core.
In a simplistic view, a thread (a sequence of steps to be executed) is constructed in a "pipeline" and then "scheduled" for execution by a CPU core. Once a thread is scheduled, the CPU core is executing the pipelined instructions. Frequently, while the thread is executing, the CPU needs more information than just the series of instructions: it needs data. These data values may be only a few nanoseconds away in some RAM memory location or they may be several thousand nanoseconds away (milliseconds) on a disk drive. When a core has to stop executing the thread while it waits to fetch the external data, time is lost. No other thread can be executed while the waiting thread is scheduled on that core (the thread is given an allotment of time and not kicked out early).
This is similar to a single lane bridge. Only one car can use the bridge at a time. If a driver stops to take a scenic picture, no other car can use the bridge until the driver gets his picture and moves off the bridge. To prevent complete closure of the core, the CPU has a mechanism to swap an entire thread off of the core if it experiences a serious problem (like a car with a breakdown), but that is a very costly process and is not used if the thread is just waiting for I/O to complete so that it may continue executing. Like the car analogy, forcing a hung thread out of a core prematurely is like waiting for a tow truck to get the broken down car off the bridge. It takes quite a while, but it is still quicker than repairing the car on the bridge.
A multi-threaded core is like a bridge that has a passing lane. When the driver on the bridge stops to take a picture, the car behind him can still use the bridge by passing the stopped car using the passing lane. Think of it as two different pipelines where thread executions are constructed. Still only one can be scheduled to a core at a time. But if the executing thread is waiting to fetch I/O, the other thread can jump in the core and get a little CPU time in while the thread assigned to the core is waiting.
This allows what may look like two cores (two pipelines executing at the same time). BUT IT IS NOT. Still only one thread at a time can be executed by the core at a time. This just allows another thread to execute during the waiting period of the first thread. Depending upon specific application design, data needs, I/O, etc, multithreading can actually decreaseperformance or may increase performance up to about 40% (sited from Intel and Microsoft sources).
Intel CPUs support multithreading, but only two threads per CPU. AMD CPUs do not support multithreading and AMD often sites Microsoft's recommendations to turn off Hyperthreading on Intel CPUs when running applications like peoplesoft and Exchange.
What are the function of 8255 8253 8251 8279 8259 8237 8212 chips in microprocessor?
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My computer screen is yellow why is that Sometimes it says my CPU heatage is high. Help?
These things may or may not be related. A screen displaying everything in a single tint (like pink, green, blue, etc...) is usually the result of a bent or misaligned pin in the monitor cable. As such, the problem rarely happens in laptops.
Video cards can also display the screen incorrectly or with garbled /missing colors if the chipset is overheating or malfunctioning. The heat warning on your computer may be an indication that either you CPU or your GPU is overheating. This could result in the problems you are reporting.
Can the processor of the laptop be replaced by the customer?
It very much depends on the individual model. Most laptops do not allow easy access to their processors, necessitating major disassembly of the laptop. Some processors are also integrated into the motherboard rather than placed in a socket, making removing them impossible or impractical.
How do you draw timing diagram for 8085 instruction LHLD 5000H?
There is an example of a LHLD 5000H diagram on this website: atelier-drachenhaus.de/timing-diagram-8085. This will provide an idea of how to draw the diagram.
What are the functions of arithmetic logic unit?
The Arithmetic Logic Unit as suggested by the name carries out the arithmetic calculations of the computer.
What are the Advantages of using number systems?
Well... without number systems math would be impossible... and the peoples without this will not really cooperate with each other in every moment and without this the world is useless.
Which processor is used in Linux for desktops?
Linux can be run on a variety of processors, including several that have been used for desktop systems. The most notable would be Intel and AMD x86 processors, as well as PowerPC processors (used in older Macs. ) Other processors used in desktop systems now or in the past and supported by Linux include Motorola 68k processors, Alpha processors, MIPS processors, and ARM processors.
What part of the computer sends data to CPU?
In the broadest sense, the motherboard sends data to the CPU. To be more specific, it would be the chipset, and particularly the northbridge.
To follow the pathway, it works something like this. The user loads a program which is on the hard drive. The hard drive sends data to the hard drive bus controller which is connected to the southbridge of the chipset. Then that goes to the northbridge into memory and back, and from the northbridge to the CPU. Of course, some modern computers use a single chipset bridge, and in that case, the other components are inside the CPU.
Multiplexing is a method that allows multiple signals or data streams to be combined on a single signal. The multiplexer memory, therefore, is the ability for the multiplexer to remember the data as it was supposed to be, and where it was needing to go.
How it could enhance the processing capability of typical destop computer?
There are several ways. One of them is to use software such as tweak, all kinds of optimization software (for instance jv16) which are able to clean the registry and do defragmentation of it. Also you need to defragment all your hard drives periodically (once per month or more often depending on how often you modify/copy/delete data).
You can use also hardware tricks like overclocking. Also to make an upgrade might a good idea if your computer is rather old or lacking power. You might need to add some RAM, replace the system hard drive with a drive with better performance. You might consider upgrading the CPU (if the motherboard supports newer CPUs). Also the video card might cause some discomfort especially if you are working under Vista.
I have the same chip and also use speedfan. I get the same results as that so it should be ok. Is it a laptop or desktop?
simple and quick way to do this as a KB equals 1000 then add 3 zeros to the number
12192 (KB)thousand = 12192000 now to workout megabytes (1,000,000) count 3 digits from the right and place a commer 12192,000 count another 3 from there and place a commer 12,192,000 this then is 12.192MB
A lot of Emachines, Dell, and HP epecially; the fans come on when you power up your computer, then shut off. They are triggered by a thermostat. Once your PC gets hot enough, like when you're playing games that take a lot of CPU usage they will kick in, usually speed up. So if your fans keep turning off, there is nothing to worry about, just your CPU hard at work ;)
How does a microprocessor work?
About the same as any other stored program electronic digital computer CPU has since the Manchester Baby did when it first operated in 1948. However the microprocessor is much smaller, faster, and consumes less power per calculation than any earlier CPU.
What is the Difference between Carry and auxiliary carry?
The carry flag indicates a carry or borrow resulting from an operation. You can use it to build multi-precision representations. The auxillary carry is very much the same, except it indicates a decimal carry or borrow, useful when representing BCD digits, and can then be used in the various "adjust for addition", etc. type of instructions. (DAA, AAA, etc.)
How do you use CPU memory as RAM is there any software for that?
The L1 and L2 caches (the "CPU memory") are already being used in a manner similar to RAM. L1 and L2 cache acts as a sort of buffer, so that the CPU does not have to fetch data from main memory as often, which slows the computer down. This, the fact that the circuitry to use the caches as main memory isn't available on most motherboards, and the fact that CPU caches are simply not large enough to run a modern operating system, make this both impossible and impractical.
