Author Archive: ruby

Как подключиться к безголовому Raspberry Pi со своего ПК?

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1. Скачайте, установите и запустите VNC Viewer.htt
2. Выберите «Новое соединение» в меню «Файл».
3, введите имя хоста (например: raspberrypi. …
Нажмите «ОК».
4. Дважды щелкните значок подключения для подключения.
5. Нажмите «ОК», если отображается предупреждение системы безопасности.
6. При появлении запроса введите имя пользователя и пароль Pi.

What is the difference between pipes and sockets? Why does Unix use pipes for interprocess communication?

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Both pipes and sockets handle byte streams, but they do it in different ways…
pipes only exist within a specific host, and they refer to buffering between virtual files, or connecting the output / input of processes within that host. There are no concepts of packets within pipes.
sockets packetize communication using IPv4 or IPv6; that communication can extend beyond localhost. Note that different endpoints of a socket can share the same IP address; however, they must listen on different TCP / UDP ports to do so.
Usage:
Use pipes:when you want to read / write data as a file within a specific server. If you’re using C, you read() and write() to a pipe.
when you want to connect the output of one process to the input of another process… see popen()
Use sockets to send data between different IPv4 / IPv6 endpoints. Very often, this happens between different hosts, but sockets could be used within the same host
BTW, you can use netcat or socat to join a socket to a pipe.

We are have a story with south korea customer for inductors components

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we are supplier for inductors components from chinese send to south korean for many years,

and has accumulated more customer from the oversea market.
since our company was established 2005,

we are do for kinds of products and service for Asia, USA, middle east customer and south american customer.
since 2018, we are slow to touch the south korea market and feel theirs hosptialibty.
2018.12.06, we are reception of LG Company customer to visited our factory

and to discussion the items for cooperation.
That day is sunny day, we are self-drived car to bao’an airported to wait for customer from morning half pass nine o’clock.
But we are wait for about till one point fifteen afternoon. the customer totall three person come out from the exist airport.

we are are Not stay for a long time althought it is lunch time,

but customer just take a cup of coffee and go directly to our factory.

we are discuss meeting begin from about two o’ clock.

firstly the customers translator who a younger lad about 23 years old and very fashion,

he was introduction LG company situation and theirs requestswe are discussion more from the products quanlity, production, Labs ,package boxes demands,payment items
About the six o’ clock

we are prepared for eat dinner and half pass nine

we are send customers to hotel for rest and next day morning .

they are fly to the airplanes back to south korea