Maintenance of computing device operating system

Maintenance of computing device operating system

There are now more commonly used computing devices
Mobile phone, tablet, watch, wristband, PC (LINUX, WINDOWS), MAC machine.
How many machines are maintained and can be upgraded?
How many functions or performance have been maintained? To protect users' assets for a longer period of time. What if they are available?
Most mobile phones do not exist.
Upgrade the security of IOS. There is a time limit for this, but it is good for me to do it. Now IOS 8.01 comes out, used for IPHONE 6, while IPHONE 4S is not available for IOS 5.


The same is true for Xiaomi's MIUI.


Other Android machines have not been used in the past few years.


Why should I mention this. I just read a piece of windows 7 shell code.


@ Echo off
Echo. Enter




@ Echo.
@ Echo "the command has been executed successfully. Please press any button to exit"
Pause


I don't know how compatible the code is. Of course, this section is not all the code I have seen. I just picked a section for the sake of security.
The extracted compatibility is good.
But all the files are unknown.
A large number of windows Servers


Windows nt, windows 2 k, windows 2008, and other server versions.
There are also various client systems, such as win 7 and win 8.
If we write a script, it won't be compatible with linux.


This reminds me of the phone, which is the topic above.
The mobile phone system is not maintained. What should I do if there is a problem with the upgrade package and security package.
Because now is the era of smart machines. Different from function machines.
Installing a software can do too much.


Therefore, the demand for security packages on smartphones is very important.
Everyone must pay attention to it .!