contactless terminal

S50Non-contactICCard Performance Overview (M1) I,Main indicators L size: 8 K-bit EEPROM (1 K bytes) L divided into 16 sectors, each of which is 4 blocks, each with 16 bytes, block as the unit of access L each slice has an independent set of

    Product Introduction     Chip: NXP Mifare 1 S50 Storage Capacity: 8 kbit, 16 partitions, two groups of passwords per Partition Operating frequency: 13.56 MHz Communication speed: 106 kboud Read/write distance: 5-10 cm Read/write time:

Linux terminal type, linux terminal Unix is a multi-user and multi-task operating system. Early computers were expensive, so cheap devices were used to connect to the computer (no keyboard or display was available at the time, paper tapes and cards were used for input and output) to use the operating system, this cheap device is a terminal, which can also be cons

Differences in concepts such as consoles, terminals, virtual terminals, Tty,shell, etc.What is the exact difference between a ' terminal ', a ' shell ', a ' tty ' and a ' console '?A terminal is at the end of a electric wire, a shell was the home of a turtle, TTY is a strange abbreviation and a console is a kind of cabinet.Well, etymologically speaking, anyway.In UNIX terminology, the short answer are that

Differences between console, terminal, tty, shell, and other concepts Linux has been used for some time, but I still cannot understand the differences between these concepts. Although I have been using it all the time, many concepts are vague, so it is really unpleasant to be unable to continue. These concepts are clarified below. These concepts have a very strong history. With the development of the times, their meanings are changing, and some of the

First, prefaceXshell compared to GNOME terminal, both are terminal emulators (in the Xshell can also execute simple built-in commands such as "CD", "LS", etc.), the same status.Second, the principle analysisInvolved in garbled, then need to understand the encoding and decoding process. Execute the command in the terminal emulator, as shown in the communication pr

Label:Original: MySQL terminal (Terminal) management MySQLMySQL has a lot of visual management tools, such as "Mysql-workbench" and "sequel-pro-". Now I am writing mysql Terminal command Operation article, is to strengthen my understanding of MySQL, always better than the use of graphical understanding, because I would like to write code. At the same time write t

First, the preface Xshell compared to GNOME terminal, both are terminal simulators (in the Xshell can also perform simple built-in commands, such as "CD", "LS", etc.), the same status. Second, the principle analysis When it comes to garbled code, you need to understand the encoding and decoding process. Execute the command in the terminal emulator, as shown in F

Virtual Machine + ubuntu graphical interface and terminal interface switch, ubuntu Terminal In the virtual machine environment, switch between the graphic interface and the text interface:1. In the vmwarevm, the graphic interface switches to the text interface, which is related to the virtual machine settings. By default, the VM occupies Ctrl + Alt as the hot key. Therefore, the graphic interface switches t

Guake Terminal-the perfect and handsome Terminal in linux, guaketerminal Although many Linux distributions, such as Ubuntu, can basically use GUI to complete most general tasks. However, terminal programs are still essential for linux users. The Gnome-terminal provided by gnome is not bad, simple, easy to use, and supp

The tty core code tty_io.c contains the following lines of code: /* * Ok, now we can initialize the rest of the tty devices and can count * on memory allocations, interrupts etc.. */static int __init tty_init(void){ cdev_init(tty_cdev, tty_fops); if (cdev_add(tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") Several system-level terminal devices are created here. They are not real ph

Cross-terminal Web and terminal web I recently tried to read some of the chapters in the book "cross-terminal Web". It is a good habit to get a book and record what I learned after reading it. The title is "cross-terminal Web first", which is the most appropriate for me. Before that, my Web development was based on PC

Linux terminal usage tips Today, we found that Linux terminals have so many easy-to-use shortcut keys. Shift + Ctrl + T: Create a tab Shift + Ctrl + W: Close the tab CTRL + Pageup: Previous Tab CTRL + Pagedown: Next Tab Shift + Ctrl + Pageup: tab left shift Shift + Ctrl + Pagedown: Right Shift of the tab Alt + 1: Switch to Tab 1 Alt + 2: Switch to Tab 2 Alt + 3: Switch to tab 3 Shift + Ctrl + N: New window Shift + Ctrl + Q: C