Brazilian society is made up of a confluence of people of several different origins, from the original native Brazilians, people of African descent, and other significant groups which include Italians, Japanese, and Germans. By the 1870s, Brazil was one of the last western nations holding on to slavery. [The Wilson quarterly, 1976]. In 1888, Brazil eliminated slavery with the Total Emancipation Law. The theory of whitening held that whites, being naturally stronger would naturally conquer inferior species. Even at a genetic level, Brazilians believed that white genes will dominate. Thus, as opposed to the United States, where having any African ancestors made someone black, in Brazil continued miscegenation would lead to a whiter population as white blood triumphed over the genes of other races. Brazil has come nearer to equality among races, yet the breach between black and white remains wide.
CISC processors are used when there are a larger number of more complex instructions which need to be run (which vary in length). They can run more than one instruction per cycle, so can have increased performance with non-sequential programming.
The CISC processors make more efficient use of RAM and relies on effective and reliable hardware rather than software.
Random fact: Processor type (RISC vs CISC) is one of the only remaining non-standardised hardware components which are still being used today. This is due to the battle between Intel vs. ARM & Apple processor manufacturers. Intel CPU’s are CISC based where Apple and ARM devices have RISC architectures.
There is no “best” architecture, each has its own benefits and drawbacks to make it more suitable to different situations. CISC is most often used in automation devices where there are many calculations, comparisons, etc. whereas RISC is used in video and image processing computer systems.
Performance of CPU
The performance of the CPU is often seen as a key contributor to the overall performance of your computer system. However, as we will see with the additional internal components there are other factors. To improve your CPU performance, you could:
Increase the Number of Cycles: referred to as overclocking, by increasing the number of cycles per second you can run more instructions. However, please be warned, processor manufacturers set their processors to their optimum setting based on performance, efficiency and reliability. By overclocking your processor you may see gains in processing speed in the short term but in the long term may lead to a shorter shelf life and excess heat being created that your heat sink/fan may not be able to keep cool.
Typical processor speeds run from 2-5GHz which is 2-5 billion instructions per second.
Increased Number of Cores: Using Jon Von Neumann’s architecture (still used by most computers), instructions are fetched, decoded and executed one at a time. Modern computer systems can now be referred to as dual-core or quad-core, etc. with each core having its own fetch, decode and execute cycle.
A computer system which operates as a dual-core or quad-core can be up to two or four times faster than its single core counterparts. However, it isn’t that clear cut. The speed of the processor is determined by the software it is running, not all software takes advantage of these additional cores.
For example, gaming software is written by coders trying to take full adv
