TAILIEUCHUNG - HandBooks Professional Java-C-Scrip-SQL part 182

Tham khảo tài liệu 'handbooks professional java-c-scrip-sql part 182', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | computers. Yet video game players for the home market are relatively inexpensive compared to personal computers. It is the competing requirements of high processing power and low production cost that keep video game designers awake at night and their children well-fed . The companies that produce video game players don t usually care how much it costs to develop the system so long as the production costs of the resulting product are low typically around a hundred dollars. They might even encourage their engineers to design custom processors at a development cost of hundreds of thousands of dollars each. So although there might be a 64-bit processor inside your video game player it is not necessarily the same type of processor that would be found in a 64-bit personal computer. In all likelihood the processor is highly specialized for the demands of the video games it is intended to play. Because production cost is so crucial in the home video game market the designers also use tricks to shift the costs around. For example one common tactic is to move as much of the memory and other peripheral electronics as possible off of the main circuit board and onto the game cartridges. This helps to reduce the cost of the game player but increases the price of each and every game. So while the system might have a powerful 64-bit processor it might have only a few megabytes of memory on the main circuit board. This is just enough memory to bootstrap the machine to a state from which it can access additional memory on the game cartridge. Mars Explorer In 1976 two unmanned spacecraft arrived on the planet Mars. As part of their mission they were to collect samples of the Martian surface analyze the chemical makeup of each and transmit the results to scientists back on Earth. Those Viking missions are amazing to me. Surrounded by personal computers that must be rebooted almost daily I find it remarkable that more than 20 years ago a team of scientists and engineers .

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