【正文】
g on the procedure, and may revise. Realizes the different function through the different procedure, particularly special unique some functions, this is other ponent needs to take the very big effort to be able to achieve, some are the flowered big strength is also very difficult to achieve. One is not the very plex function, if develops in the 50s with the US 74 series, or the 60s39。s on operating system and the application software home use PC to e up the movement, home use PC could also not withstand. It can be said that the 20th century surmounted three the electricity the time, namely the electrical time, the Electronic Age and already entered puter time. However, this kind of puter, usually refers to the personal puter, is called PC machine. It by the main engine, the keyboard, the monitor and so on is posed. Also has a kind of puter, most people actually not how familiar. This kind of puter is entrusts with the intelligence each kind of mechanical monolithic integrated circuit (also to call micro controller). , This kind of puter39。概括的講:一塊芯片就成了一臺計算機。我們現(xiàn)在用的全自動滾筒洗農(nóng)機 、排煙罩、 VCD等等的家電里面都可以看到它的身影!它主要是作為控制部分的核心部件。一個不是很復(fù)雜的功能要是用美同 50年代開發(fā)的 74系列,或者 60 年代的 CD4000 系列這些純硬件來搞定的話,電路一定是一塊大PCB板!但是如果要是用美國 70年代成功投放市場的系列單片機,結(jié)果就會有天壤之別!只因為單片機的通過你編寫的程序可以實現(xiàn)高科能,高效率,以及高可靠性! CPU(中央處理單元 )是數(shù)字計算機的重要組成部分,其目的是對從內(nèi)存中接收的指令進行譯碼,同時對存儲于內(nèi)部寄存器、存儲器或輸入輸出接口單元的數(shù)據(jù)驚醒傳輸、算術(shù)運算、邏輯運算以及控制運算。字長也許更短,編制數(shù)量少,指令集有限。一個可視化高級語言編寫的小程序里面即使只有一個按鈕,也會達到幾十 K 的尺寸!對于家用 PC的硬盤來 講沒什么,可是對于單片機來講是不能接受的。不過,這種電腦,通常是指個人計算機,簡稱 PC機。顧名思義,這種計算機的最小系統(tǒng)只用了一片集成電路,即可進行簡單運算和控制。各種產(chǎn)品。