what is nvr mean

What does Android Gralloc mean?Ignore can 0028 | Browse 23 times | Report posted on 2017-01-10 10:18 Best AnswerThe LCD in Android is a frame buffer device, and the driver uses the processor's LCD controller to set the area of physical memory to video memory,If you write data to this memory area, it will be displayed on the LCD immediately. Android provide

What does an out of memory mean? Out of memory English meaning is not enough computer memory, we are aware that the computer program is not only the operation of the computer CPU consumption, while the memory will also be occupied, when a certain amount of storage will occur when the memory

In JQuery, what does $ (document) mean? jquerydocument First of all, I will explain that jQuery has a handy small function used to quickly load javascript as DOM, that is, ready... It is executed before page loading is complete. Why not use window. onload (), because when th

Bit Rate and frame rate, what mean?I used to have no contact with the video. I am not very familiar with this aspect of video. Now let's take a look at the bit rate and frame rate issues.Bit rate is the number of digits transmitted per unit time during data transmission. Generally, the unit is kbps, that

Select 1 from... what does 1 in an SQL statement mean? What is the result? Select 1 from table; and select anycol (any row in the target table set) from table; there is no difference between select * from table and select * from table in terms of function. check whether the

query. In the case of query performance tuning, we cannot control the size of the data buffer cache or how busy the server is, whether the data required to complete the query is in the data buffer or on disk, and the only data that we can control is the number of logical reads that are required to execute the query results.Thus, in the tuning of query performanc

: Updates the state of the domain object in the database.Delete: Deletes a domain object from the database.Load: Loads a domain object from the database into memory, depending on the specific OID.Query: Depending on the specific query criteria, one or more domain objects that meet the query criteria are loaded from the database.2. Why to persist. Persistence technology encapsulates the details of data access and provides an object-oriented API for most business logic.The persistence technology c

or Rtmp://localhost/vod/mp4:c.mp4It is important to note that if it is placed in a level two directory such as the FMS installation folder/applications/vod/media/f4v/b.f4v or the FMS installation folder/applications/vod/media/mp4/c.mp4Then the access address is different from the FLV, should be rtmp://localhost/vod/mp4:f4v/b.f4v or rtmp://localhost/vod/mp4:mp4/c

RAM is the abbreviation of English random-access memory, Chinese translation is random access memory, for mobile phone, mobile phone has two kinds of memory: Running memory is also known as RAM, memory also known as ROM, and the author today to explain the mobile phone ram, Plainly is the mobile phone's running memory,

In some shell scripts, especially in crontab scripts, >/dev/null2>1 is often seen as such. In fact, this is very good understanding. We explain in two parts. 1. >/dev/null Everyone knows that ">" (Right angle bracket) in the Unix/linux shell means input to the meaning of the ">" to the left of the content to the ">" right.For example, Echo text>1.txt the text into the 1.txt file.So

What does Time mean? Well, stick it to the top. Today or March May 30, 2015? How about a day? Summer, plain, no clouds, no you. What kind of city is it? Will it still be the feeling of the city, or there is no place for you. These ,, They are all guests of my new blog. Let m

When we listen to songs in music players, such as shrimp music, Dom music, and so on, in some songs will appear in front of the HQ, sq or lossless words, and some songs are not, then some people have questions, what do these representatives mean? What's the difference between them and do they have an effect on listening to music? Let's explain what this means.

vulnerability called bash more serious than a "heart bleed" vulnerability. Hackers can use it to remotely send instructions to the Web server, which means that the affected company will be in big trouble. So, at the moment, Bash is a security vulnerability that allows hackers to issue remote commands to a network server. Because this bug allows the hacker to instruct the server to do whatever he wants to do, the privacy information

Header (' Www-authenticate:basic realm = ' realm-name '); Header (' status:401 unauthorized '); Header (' http/1.0 401 Unauthorized '); Header ("location:http://www.example.com/"); Header (' www-authenticate:negotiate '); Header (' WWW-AUTHENTICATE:NTLM ', false); What do you mean by these few? Often see in PHP oh, I read in the PHP manual, still do not quite understand. Please advise. Thank you. Repl

This sentence:If (window = This) return New jquery (a, c );I will perform some tests on this object:1. It represents the window object.Test code: The window object refers to the entire ie window, including the menu bar and status bar. For example:Window. Status = "hello ";Window. moveTo (-12,-12 ); 2. It represents the current class When tracing with vs, in class class1, this is an empty object. After it gets the name, it can be accessed outside the c

Cause 502 Bad Gateway Servers (which can be not Web servers) are gateways or proxies that meet customer requirements (such as Web browsers or our Checkupdown bots) to access the requested URL. 　　This server received an invalid response from an upstream server to fulfill its requirements. Meaning: This usually does not mean that the upstream server has been shut down (no response gateway/proxy), but that the upstream server and gateway/pr