Kernel (internal/privileged)
Kernel API
Low-level system libraries
System utilities
Application-level libraries
User utilities/applications
.............................................by nc paul
shell
In order to legally be called a "Unix" system, operating systems must undergo a rigorous and expensive certification procedure. "Unix-like" refers to systems that have an architecture similar to Unix, but have not undergone certification.
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Unix uses anti-virus programs the same way other systems do; there is nothing present in the system to protect it from virus programs.
ok
Indefinite. It is dependent on the computer architecture and the version being used.
There are three layers of embryonic tissue present in the pig. These layers are called the ectoderm, mesoderm and the endoderm.
No. Linux is a free, open-source version of UNIX. Many of DOS's commands were based on UNIX commands, but the underlying operating system is much more powerful than DOS.
windows, mac os, unix, linux..generally all of the present versions of these OC's are multitasking ones..
Minix: Monolitic, rendezvous method (messages passing), layers, device controllers,
Ozone is present in 2 layers. These are troposphere and stratosphere.
ps or /proc