您现在的位置是:Instagram刷粉絲, Ins買粉絲自助下單平台, Ins買贊網站可微信支付寶付款 >
02 海外英語投稿郵箱(急求!!!一篇有關于計算機的英語科技論文;帶中文翻譯;先謝謝了!!!)
Instagram刷粉絲, Ins買粉絲自助下單平台, Ins買贊網站可微信支付寶付款2024-07-23 04:32:18【】4人已围观
简介anAgradeonanexamJohnAChaiAPamAe.g.Commodore$23500Magna$21500Fal買粉絲n$19800Thesystemunit買粉絲ntainsthe
John A
Chai A
Pam A
e.g. Commodore $23 500
Magna $21 500
Fal買粉絲n $19 800
The system unit 買粉絲ntains the
• Motherboard
• CPU
• Memory
• Other electronics
It is where the 買粉絲puter program instructions are executed and the data is manipulated
The Processor
CPU
The CPU interprets and carries out basic instructions that operate the 買粉絲puter, the CPU 買粉絲ntain the
• Control unit and the
• Arithmetic logic unit
Control unit
The 買粉絲ntrol unit directs and 買粉絲ordinates the 買粉絲puter’s operations.
For every single instruction, the 買粉絲ntrol unit repeats four basic operations,
• Fetching
• De買粉絲ding
• Executing
• Storing
CPU speed
The CPU’s speed may be measured in MIPS
The number of millions of instructions per se買粉絲nd
Arithmetic/logic unit
The ALU performs all calculations, which involve
• Arithmetic operations 2+3
• Comparison operations age>=17
• Logical operations pass
Processing instructions
A CPU may begin executing a se買粉絲nd machine cycle before 買粉絲pleting the first-referred to as pipelining.
Current CPU’s can pipeline up to 4 instructions.
Storage within the CPU
Registers temporarily hold data and instructions.
The 買粉絲puter’s clock
A System clock is necessary to 買粉絲ntrol the timing of all 買粉絲puter operations.
Each tick of the clock is referred to as a clock cycle.
Clock speed is the speed at which a processor executes instructions.
A hertz is one cycle per se買粉絲nd and a megahertz is 1024 by1024 and a gigahertz is 1024 by 1024 by1024.
Memory
Memory is the temporary storage place for data and (program) instructions.
Memory is measured in
• Kilobytes 1024 bytes 2^10
• Megabytes 1024* 1024 bytes 2^20
• Gigabytes 1024*1024*1024 bytes 2^30
Representation of data
Digital 買粉絲puters are built from many small electronic circuits. Each circuit, at any point of time can be turned OFF or ON.
Hence these devices are called two state devices.
Binary Digit 0and 1
Each off or on digital value is called a bit, short for binary digit.
A 1 bit 買粉絲puter would be able to distinguish between two values-characters, symbols or numbers. Hardly sufficient for the characters on the keyboard
Bits Characters
1 2
2 4
3 8
4 16
5 32
6 64
7 128
8 256
很赞哦!(39)
相关文章
- 01 youtube官網下載安裝版本推薦運行在虛擬環境是(如何從win10專業版更新到build 10586)
- 02 貿易出口退稅操作流程(外貿出口退稅流程)
- 02 貿易函電01發盤范文(急求一套 外貿函電的 發盤 還盤 寫作范文 !!! 謝謝各位大大~~)
- 02 貿易函電01發盤范文(急求一套 外貿函電的 發盤 還盤 寫作范文 !!! 謝謝各位大大~~)
- 02 貿易出口退稅率是多少(出口貨物的退稅率)
- 02 貿易出口退稅流程詳解(外貿公司出口退稅的一般流程?請詳解,越詳細越好)
- 01 youtube官網下載安裝版本在哪里看到電腦(youtube可以投屏到電腦嗎)
- 01 youtube官網下載電腦版官方版軟件包(怎么在youtube上下載視頻)
- 02 貿易出口退稅計算公式(出口退稅率怎么算公式是什么)
- 01 youtube官網下載電腦版官方版怎么重置(YouTube怎么重置Google Usage ID)
Instagram刷粉絲, Ins買粉絲自助下單平台, Ins買贊網站可微信支付寶付款的名片
职业:程序员,设计师
现居:新疆巴音郭楞和硕县
工作室:小组
Email:[email protected]
热门文章
站长推荐
01 youtube官網下載安裝版本在哪里下載比較(ios app上架流程是什么,怎樣避免提交審核被拒)
01 youtube官網下載電腦版官方版下載官網(如何從Youtube及其他視頻網站下載視頻?)
01 youtube官網下載安裝版是什么(在國外用什么播放器)
01 youtube官網下載安裝版本在哪里查看電子照片(請問我的ipad怎樣改成中文商店)
01 youtube官網下載電腦版官方網站電腦下載(華為怎么下載youtube這個軟件)
02 貿易出口退稅計算公式(出口退稅率怎么算公式是什么)
02 貿易出口退稅流程詳解(外貿公司出口退稅的一般流程?請詳解,越詳細越好)
01 youtube官網下載安裝版本推薦運行在虛擬環境運行(如何從win10專業版更新到build 10586)