first typewriter invented

kernel documents: Documents/devices.txt. In addition, section 8.7 of Linux kernel source code scenario analysis and section 3.9 of operating systems: design and implementation (section 3rd in version 3.8) all of them provide a good introduction to the concepts and history of terminal devices. In addition, the introduction to terminal devices is also introduced in modern operating system. The text content is roughly the same as that of operating systems: design and implementation. Note that oper

version for/dev/input/mouse0, not a typewriter I/eventhub (57): c :::::::: eventhub. cpp :::::::: entering into the open_device (device_path) I/eventhub (57): opening device:/dev/input/Mice I/eventhub (57): opened device:/dev/input/mice (0 failures) E/eventhub (57): cocould not get driver version for/dev/input/mice, not a typewriter I/eventhub (57): c ::::::: eventhub. CPP: ::::::: enter into the while (1)

It was a very simple thing, but it turned out that the typewriter was quite interesting ...... Http://blog.csdn.net/xyp84/archive/2009/08/11/4435899.aspx Summary: Enter Line feed 0d 0a Carriage Return Line feed "/R" "/N" Win32 0d 0d 0a UNIX 0d 0a ============== Quiet split line ========================== Today, I wrote a shell script, whi

\ R: Return to the leftmost part of the current row. \ N: newline moves down a row, not left or right. In Linux, \ n indicates carriage return + line feed; In Windows, \ r \ n indicates carriage return + line feed. In Mac, \ r indicates carriage return + line feed. History: The origins and differences between carriage return and line feed.Before the computer appeared, there was a kind of device called teletype model 33, which also came from the TTY concept in Linux/Unix. It can contain 10

, and it only recognizes lfSo VI will kill the CR and replace it with a ^ m symbol. Next, we will introduce a history of Cr (carriage return) and LF (line feed ).Before the computer appeared, it printed characters using teletype model 33, which can contain 10 characters per secondHowever, after hitting a row, it is found that it takes 0.2 seconds to wrap the line, and the 0.2 seconds can print exactly two characters.If a new character is passed in the 0.2 s, the character will be lost because i

there are a lot of buttons on the PDP-11 body, this operation panel is called the console. The console is closely integrated with the host and cannot be remotely operated. Many operations need to be done through the console (for example, problems encountered during the Startup Process), because the terminal can be connected only when the host is started and the network connection is normal. Since large computers are expensive, Thompson and his colleagues want UNIX to be called a multi-tasking (

Analysis on tty, pty, and pts First, let's start with the concept. The so-called tty is the abbreviation of TeletypeWriter. Its Chinese translation is a telex typewriter. Its main function is to print and read information, later, it was replaced by a keyboard and a display. However, tty's common understanding is terminal. What is a terminal? It is an electronic or electromechanical hardware device that can be used to input data to a large host and d

(textIndent)Supported HTML entities: Two styles are written:Statement 1:Var sampleStyle: Object = new Object ();SampleStyle. color = "# FFFFFF ";SampleStyle. textAlign = "center ";Css. setStyle (". sample", sampleStyle );Statement 2:Var sampleStyle: Object = {color: "# FFFFFF", textAlign: "center "};Css. setStyle (". sample", sampleStyle ); [Style the text entered by the user]When the defaultTextFormat attribute is used, the style is applied to the text in the input box:Var formatter: TextForma

letters. you wocould put two pieces of paper in a typewriter at the same time, with a piece of carbon paper in. the letters wocould press through the carbon paper, leaving an extra copy of the text on the sheet at the back. The CC field can be used for a number of reasons.It keeps other people "in the loop" on certain issues (often used to keep managers up to date on issues ).It lets people know if they are expected to take action, or if they are jus

DetailViewController, an IBOutlet-Detail Switch Connection already exists to associate the switch with DetailView. xib. You only need to add the following code to the viewDidLoad method of DetailViewController: -(Void) viewDidLoad {[SuperviewDidLoad];[[Selfview] setBackgroundColor: [UIColorcolorWithPatternImage: [UIImageimageNamed: @ "bg_sand"];[Gradient switchsetontintcolor: [UIColorcolorWithRed: 0 green: 175.0/255.0 blue: 176.0/255.0 alpha: 1.0];}Compile and run the project and you will see a

pl UKai HK: style = Book ar pl UKai tw mbe: style = Book ar pl UKai TW: style = Book ar pl UMing CN: style = Light ar pl UMing HK: style = Light ar pl UMing tw mbe: style = Light ar pl UMing TW: style = Light... wenQuanYi wide micron black, WenQuanYi and other micron black, WenQuanYi Micro Hei Mono: style = Regular WenQuanYi and other wide and upright black, WenQuanYi and other 正, WenQuanYi Zen Hei Mono: style = Regular 文, Wenquan, WenQuanYi Zen Hei Sharp: style = Regular 文 micron black, Wenqua

Path dependency theory, also known as path dependency Introduction Once people make a certain choice, it is like taking the road of no return. The force of inertia will make this choice constantly strengthen itself and make it difficult for you to go out easily. Path Dependence)It was initially demonstrated by Paul A David in 1985 that w Brian Arthur made further expansion. David's story is the current QWERTY keyboard, which is not technically the best, but it firmly occupies the market. I

or she is actually concentrating. You might want to ask thisQuestion at lunch. Another type of coder's block comes from fear of failure. Most people wantDo a good job and be recognized for the good work they do. This is especiallyTrue of people who do knowledge work, such as programmers, because the onlyMeasures of quality are how cleverly and cleanly they have built something.Since software is nearly infinitely malleable, inclucoders get stuck tryingCome up with the absolute neatest, cleverest

management" course to the real estate merchant. When the clerk arrived at the real estate agent's office, he found that he was carrying a letter on an antique typewriter. The salesman introduced himself and then introduced the course he promoted. The real estate merchant apparently listened with relish. However, after hearing this, I did not express my opinion. The clerk had to go straight into the class: "Do you want to take this course, right ?" Th

The family of letters in Western countries is divided into two main families: serif and sans serif. The typewriter reader is also sans serif, but the typewriter family is derived from the same distance. Serif indicates that there is an out-of-the-box operator at the beginning and end of the word, and the rough character of the operator varies depending on the direct character. On the contrary, sans serif d

. Defines the body content in the table. Define the cells in the table. A text input control that defines multiple lines. Define the table notes (footnotes) in the table. Defines the header cells in the table. Defines the header content in a table. New Define a date or time, or both. Defines the title of the document. D

. Defines the date/time. Defines the title of the document. Defines the rows in the table. Defines a text track used in a media player. Defines the typewriter text. do not approve of use. defines the underlined text. Defines an unordered list. Defines the variable part of the text.

font as Chinese typewriter font \begin{document} Hello, \latex! \end{document} You can then compile with Xelatex.We can use texlive to deal with Chinese characters through commands such as Setcjkmainfont, but it is really annoying to write such a command in each document.So there is the idea of two.Idea two: By writing this command of the font set above to the custom macro package file Mylinuxfonts.sty, then use this custom macro package in the docum

./proc | PROCesses | A virtual directory, which is a mapping of system memory. This directory can be accessed directly to obtain system information./sbin | Super BINaries, Superuser BINaries | System administration commands, which are stored in the hypervisor used by the system administrator/srv | SeRVices | is the data directory to which these services need to be taken after some network services are started. Common services such as www,ftp./sys | SYStem | The virtual file system, which mainly

well in the bin. TTYin Linux, TTY may be the most confusing term to have a connection to a terminal. TTY is an old acronym for Teletype. Teletypes, or teletypewriters, originally refers to a telex typewriter, is a serial line with a printer keyboard by reading and sending messages, and the old Telegraph difference is not very large. Then, when the computer can only run in batch mode (when the punch card reader is the only way to get the program to ru