What is personal power
You can't dig in a day. It takes 2000 years
the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin
in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
extended data:
bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system
bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer
when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25
when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million
each task in your operating system has a process, and each process is composed of many threads. If you've ever had an operating system class, you should have met multi threads programming. You let different threads cooperate to complete the same task, which is actually called parallel computing and distributed processing.
you can see that the projects of those parallel computing classes also run algorithms with ordinary computers, The key point is that you will simulate this environment. Just like those who run network algorithms use socket to simulate, they also use a PC to simulate the network of N workstations.
if you say multi-core CPU, First of all, you don't have access to the firmware of ordinary motherboards. So you have to buy a programmable board of general purpose, But if you want to buy a multi-core basic, you can't find it... Only in the laboratory can you have it... Even if you find it... I think that the money for that board is estimated to be several times of the tuition for you to go to graate school and then enter the laboratory...
in a word, if the software is implemented, today's PC should have no problem, As for how to start parallel computing mode, you need to read the datasheet of this board.
I don't agree with the above saying that there must be two cores, People with two brains can do parallel. But the left brain and the right brain of one brain are also parallel. When refining different neurons, the other completely independent neuron is also parallel. Parallel is a way to solve problems, an idea. Parallel computing was first proposed in 1912. I can't remember when the multi-core processor appeared, But after 2000, at least
work w = - Mg * (z2-z1) = - 100 * 9.8 * (2-8) = 5880 (Jiao)
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if you play 360 games with PC through simulator,
you are in a circle.
you should understand the story of tortoise and rabbit race
if there are two vibrating motors, there will be positive and negative rotation
Personal computer is composed of hardware system and software system. It is a device that can run independently and complete specific functions. It does not need to share the processing, disk and printer resources of other computers, and can also work independently. From desktop computers (or desktop computers, desktop computers), laptops to netbooks, tablet computers and ultrabooks, all belong to the category of personal computers
hardware system: refers to the physical equipment of the computer, such as power supply, motherboard, CPU, memory, hard disk, etc. Software system: refers to the program designed to facilitate the use of computers. Software system includes system software and application software. System software refers to the program that is mainly used to control and manage computer resources, such as operating system, compiler system, etc
extended materials
notebook computers can be roughly divided into six categories: business type, fashion type, multimedia application type, Internet type, learning type and special purpose. Business laptops generally can be summarized as strong mobility, long battery life and more business software; Multimedia application-oriented notebook computer has strong graphics, image processing ability and multimedia ability, especially the playback ability. It is an enjoyable proct
most of the multimedia notebook computers have relatively strong independent graphics and sound cards (both support high definition), and large screen. Netbook is a portable and low configuration notebook computer, which has the functions of surfing the Internet, sending and receiving e-mail, instant messaging (IM) and so on, and can play streaming media and music smoothly
a personal computer that can run independently and perform specific functions. Personal computers do not need to share the processing, disk and printer resources of other computers
PC is the character that the player is responsible for controlling. PC is short for player character. Correspondingly, NPC (non player character) is a non player controlled character.
is also the abbreviation of "police"
Microcomputer