But can somebody tell me what does scratch mean here.
please bcos it came in my reading that Prof. A. S. Tanenbaum has also developed Minix from scratch.
Pls make me understand what is scratch here
Thanx in advance.
2007-01-31 08:28:31 · 8 answers · asked by Anonymous in Computers & Internet ➔ Programming & Design
In a nutshell...
He coded something from scratch that replicates the behavior of the unix kernel.
The behavior was a copy but the code used to produce that behavior was original.
That's not the complete story, but that's what is meant by 'from scratch' even if the finner points aren't correct.
2007-01-31 08:36:29 · answer #1 · answered by Justin 5 · 1⤊ 0⤋
In this story the meaning of from scratch is from nothing tangible, Minix gave Linus inspiration but Linus chose to begin with nothing.
From scratch means from a starting point that is completely anew and separate from whatever came before it. You can say Apple developed Mac OS X from scratch and used no previous Mac OS code; Microsoft/IBM developed OS/2 from scratch because the descendant Windows NT is very different from others. But you can not say Windows 95 was developed from scratch because it is plain old DOS in a prettier wrapper.
2007-01-31 09:07:43 · answer #2 · answered by Andy T 7 · 0⤊ 1⤋
This is what a "Basic" operating system is:
An operating system (OS) is a computer program that manages the hardware and software resources of a computer. At the foundation of all system software, the OS performs basic tasks such as controlling and allocating memory, prioritizing system requests, controlling input and output devices, facilitating networking, and managing files. It also may provide a graphical user interface for higher level functions. It forms a platform for other software.
With that, you start off compling code to control hardware.
void main()
{
while(1)
{
//Control I/O devices
//Control Memory
}
}
From there, it can grow without bounds.
BIOS can be considered as a very basic operating system, but BIOS is extremely limited in what it can do. It is just a BASIC operating system that allows you to install a more complicated operating system, that can be run off of the hard drive or floppy or CD, such as Windows, Linux, etc, etc.
2007-01-31 08:52:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Torvalds did build the kernel from nothing. however he examined the old unix (now owned by Hp), so they were sueing the linux organization claiming rights over Linux. but he did start it from scrath though. and now we have a kick *** operating system that can outrival any Vista or Os X. if you're a Gui fan, check out Compiz.net. That's all Linux needed really, a cool looking gui.
2007-01-31 08:42:21 · answer #4 · answered by Julio M 3 · 0⤊ 1⤋
From scratch means that they started from nothing. They didn't start from someone else's work.
2007-01-31 08:33:35 · answer #5 · answered by Cory P 2 · 0⤊ 0⤋
basically he managed to write a piece of software with knowlege of binary coding and turned it into a command line interface so he basically programed software from nothing
2007-01-31 08:33:59 · answer #6 · answered by steolav 2 · 0⤊ 0⤋
scraht means made out of nothing or made begining on zero
2007-01-31 08:34:13 · answer #7 · answered by adolfo 2 · 0⤊ 0⤋
he use soy products instead of whole grains
2007-01-31 08:32:06 · answer #8 · answered by Anonymous · 0⤊ 1⤋