Overview
The X Window System provides the base technology for developing graphicaluser interfaces. At a very basic level, X draws the elements of the GUI on the user's screen and builds in methods for sending user interactions back to the application. Using application GUI development toolkits, such as Motif, an application developer can quickly create an application interface to the end user.
But X is more than that. Because X has been implemented from the start to use a client/ server model, it is ideally suited for remote application deployment as well. That is, X lets you work from your computer directly with an application running on another computer. In addition, X is hardware-independent. With X you can run Microsoft Windows Applications on a UNIX workstation, or you can run a UNIX application on an Apple Macintosh system.
The latest release of the X Window System, known as X11R6.4, includes thefollowing new features:
• XINERAMA - Single Logical Screen Support
• Easy Resource Configuration
• Less Colormap Flashing
• DPMS Power Saving Feature
• Extended Visual Information (EVI) extension
• Significantly Reduced Memory Footprint
• And, Lots of bug fixes!
The X Window System provides the base technology for developing graphicaluser interfaces. At a very basic level, X draws the elements of the GUI on the user's screen and builds in methods for sending user interactions back to the application. Using application GUI development toolkits, such as Motif, an application developer can quickly create an application interface to the end user.
But X is more than that. Because X has been implemented from the start to use a client/ server model, it is ideally suited for remote application deployment as well. That is, X lets you work from your computer directly with an application running on another computer. In addition, X is hardware-independent. With X you can run Microsoft Windows Applications on a UNIX workstation, or you can run a UNIX application on an Apple Macintosh system.
The latest release of the X Window System, known as X11R6.4, includes thefollowing new features:
• XINERAMA - Single Logical Screen Support
• Easy Resource Configuration
• Less Colormap Flashing
• DPMS Power Saving Feature
• Extended Visual Information (EVI) extension
• Significantly Reduced Memory Footprint
• And, Lots of bug fixes!
Why is UNIX successful?
The computer world seems to have gone ‘UNIX mad', and it is hard to understand why. One good reason is the portability of the system but there must be more to it than that. Most people who use the UNIX system seem to like it even though it is full of idiosyncrasies, is terse to the point of unhelpfulness and consists of a very large number of totally forgettable commands. I think that the success of the system is summed up by the following paragraph.
The UNIX system is successful because the minimum number of keystrokes achieve maximum effort. In addition, the system says very little to explain errors and relies on intelligence of the user to deduce reasons for failure.
The statement describes UNIX V6, which we all know is the parent of the UNIX systems running today History tells us that the guys who designed it did their own typing into the machine. It seems to me that because of this, the main reason the UNIX enjoys/ suffers from terse input and output is not through any intellectual design decisions made at some early stage but because the UNIX designers were just bad typists working on slow peripherals.
What is Linux?Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Linux is an independent POSIX implementation and includes true multitasking, virtual memory, shared libraries, demand loading, proper memory management, TCP/IP networking, and other features consistent with Unix-type systems. Developed under the GNU General Public Licence, the source code for Linux is freely available to everyone.
The computer world seems to have gone ‘UNIX mad', and it is hard to understand why. One good reason is the portability of the system but there must be more to it than that. Most people who use the UNIX system seem to like it even though it is full of idiosyncrasies, is terse to the point of unhelpfulness and consists of a very large number of totally forgettable commands. I think that the success of the system is summed up by the following paragraph.
The UNIX system is successful because the minimum number of keystrokes achieve maximum effort. In addition, the system says very little to explain errors and relies on intelligence of the user to deduce reasons for failure.
The statement describes UNIX V6, which we all know is the parent of the UNIX systems running today History tells us that the guys who designed it did their own typing into the machine. It seems to me that because of this, the main reason the UNIX enjoys/ suffers from terse input and output is not through any intellectual design decisions made at some early stage but because the UNIX designers were just bad typists working on slow peripherals.
What is Linux?Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Linux is an independent POSIX implementation and includes true multitasking, virtual memory, shared libraries, demand loading, proper memory management, TCP/IP networking, and other features consistent with Unix-type systems. Developed under the GNU General Public Licence, the source code for Linux is freely available to everyone.
VM/ESA Operating System
VM/ESA is a high-performance, interactive operating system for IBM S/390 servers. VM/ESA supports today's computing environments by providing a natural infrastructure for network computing, letting you participate in multi-system environments.
JOKESVM/ESA is a high-performance, interactive operating system for IBM S/390 servers. VM/ESA supports today's computing environments by providing a natural infrastructure for network computing, letting you participate in multi-system environments.
JOKE1: Simon had been warned that he must be on his best behavior when his wealthy aunt arrived for a brief holiday visit.It was at tea during the first day of her stay that Simon kept looking at his aunt then, when the meal was almost finished, he asked: ‘Auntie, when are you going to do your trick?’
‘What trick is that, dear?’ she inquired.
‘Well,’ began Simon, ‘Daddy says you can drink like a fish.’
JOKE2: Dorothy: ‘Mum, did you know that Marconi was a famous investor?’
Mother: ‘Yes, dear. But it’s not polite to say Ma Coni – you should say Mrs. Coni.’
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