184.108.40.206 explain how the clock speed, word length and bus width affect the performance
There are several things we can try to improve the performance of your computer:
Clock speed (Clock rate)
The most obvious way to increase the speed of your computer is to increase the speed of your computer clock. At a higher clock speed, the CPU will be forced to execute more instructions per second.
For example, if we compare two identical processor models, which differ only in clock speed. One operates at 3.4 GHz and the other operates at 2.6 GHz. In this case, the 3.4 GHz processor will run 30% faster when both are running at maximum speed.
Word length (Word size)
Another way to improve computer performance is to increase the word size. This means an increase in the number of bits that the computer can handle at one time.
The longer the word, the more accurate calculations can be done by computers and more complex things. Modern computers are mostly in word sizes: 32 bits or 64 bits.
For example, on a 32-bit machine, pointers can address ~ 4 GB of RAM, whereas on a 64-bit machine, they can address over 16.7 million TB. If more than 4 GB is to be addressed on a 32-bit system, there will be a lot of extra clock cycles to fetch and parse these wider numbers, whereas these operations are much faster on a processor that can handle it all in one word.
Bus width (Bus size)
For example, imagine that you have a processor capable of understanding 32-bit words in one go. But what happens if the bus sending words from memory to the processor is only 8 bits wide? We will have the neck of the bottle. This will require sending four blocks of data over the data bus before we get a word for the processor to execute. In other words, to increase performance, we also need to increase the bus size to avoid bottlenecks.
Also, computer performance is affected by
A CPU consists of multiple processing units. Each processing unit is known as core. A core consists of processor (ALU and CU) and registers. Computers may be dual (two), quad (four) or even more cores.
When the number of cores is increased, the communication channels between the cores also use up some of the speed. Hence, increasing the number of cores four times, will not increase the speed of computer of the computer four times.
Cache is a small memory part located closer to CPU when compared to RAM.
Accessing cache memory
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