Updating ubuntu without internet
By default, many useful programs are already installed when you put Ubuntu onto your computer.
However, you may need a particular piece of software that serves a purpose not served by the default applications.
There are four Ubuntu software channels for each architecture - Main, Restricted, Universe and Multiverse. By default, only packages from Main and Restricted can be installed.
If you would like to install packages from Universe or Multiverse, see the Repositories page for instructions on how to do this. Be careful, though - some are not compatible with Ubuntu and using them may cause programs to stop working or may even cause serious damage to your installation.
Well, different computers use different types of binary, so if you make a binary package for one type (like an Intel PC), it won't work on another (like a Power PC). Ubuntu supports the x86 (i386 or i686), AMD64 and PPC architectures.
The correct binary packages will be used automatically, so you don't have to worry about picking the right ones.
A package manager is an application which handles the downloading and installation of packages.
Ubuntu includes a few package managers by default, and which one you use depends on how advanced the package management tasks are that you want to achieve.
You will learn about what a package is, the differences between different types of package and also how package management works on Ubuntu.When you install software, thousands of files may be required just to let the program start!When you think that they all have to be put in exactly the right location, and some of those files may need to be changed depending on what type of computer you have, it can all get very complicated. to store everything that a particular program needs to run.Source code is written by programmers and is essentially a list of instructions to a computer which humans are able to read and write.Computers can only understand this code if it is ) just convert it into binary from the start?