Q. Why do they need so many monitors to view charts and stuff and what source are they looking at ( any particular software) ??
the keyboard seems different too, where can i buy those and how much to buy all the equipments ?
the keyboard seems different too, where can i buy those and how much to buy all the equipments ?
A. It's quicker to have multiple displays than it is to switch between views as the eye can move faster than the computer can redraw. There's a tremendous advantage to having the extra display space. Stock trading isn't the only profession where multiple screens are in demand.
The software is likely to be specific to the exchanges that they are trading on and there's likely to be several different programs running some developed in house and some perhaps even the traders own bag of tricks. In it's heyday, Wallstreet would have one well paid systems administrator between two or three traders so that technical issues would not impede the traders. In the past, the computers were Unix based scientific workstations such as Sun and SGI, hence the system administrator and therefore had slightly different keyboard layouts than a PC. These days PC's are used as scientific workstations with Linux providing all the functionality of Unix and Windows starting to be a reasonable OS, of course, they're not limited to the computers at their desk, those displays could easily be of programs running on a number of servers in a machine room.
The software is likely to be specific to the exchanges that they are trading on and there's likely to be several different programs running some developed in house and some perhaps even the traders own bag of tricks. In it's heyday, Wallstreet would have one well paid systems administrator between two or three traders so that technical issues would not impede the traders. In the past, the computers were Unix based scientific workstations such as Sun and SGI, hence the system administrator and therefore had slightly different keyboard layouts than a PC. These days PC's are used as scientific workstations with Linux providing all the functionality of Unix and Windows starting to be a reasonable OS, of course, they're not limited to the computers at their desk, those displays could easily be of programs running on a number of servers in a machine room.
Is there free software to erase a hardrive?
Q. I have two hard drives setting on my desk that I want to erase so that I can use one of them for storage.
I want the software to erase them using my own desktop (a Pentium 4) What do I need to get it done cheap at home? What has to stay on the hard drive so that it is usable but clean? Thanks Dave/
any free downloadable software?
I want the software to erase them using my own desktop (a Pentium 4) What do I need to get it done cheap at home? What has to stay on the hard drive so that it is usable but clean? Thanks Dave/
any free downloadable software?
A. Well, normally just erasing the partition that had the old files on it will work. If you are worried about passing it along to someone else and don't want them snooping into the old files, then you should probably learn the dd command.
This is a good primer: http://www.linuxquestions.org/questions/linux-newbie-8/learn-the-dd-command-362506/
dd if=/dev/zero of=/dev/sdx bs=8b
would write zeros onto sdx, where sdx is the harddrive you want to erase. ie. normally the second sata drive is sdb.
You can do this a couple times for ultimate paranoia, but you can read the disk through a hex editor and search for anything that hasn't been zeroed out.
When that's done the disk should be like factory new, it will need to have a partition written to it, and then you can use it.
This is a good primer: http://www.linuxquestions.org/questions/linux-newbie-8/learn-the-dd-command-362506/
dd if=/dev/zero of=/dev/sdx bs=8b
would write zeros onto sdx, where sdx is the harddrive you want to erase. ie. normally the second sata drive is sdb.
You can do this a couple times for ultimate paranoia, but you can read the disk through a hex editor and search for anything that hasn't been zeroed out.
When that's done the disk should be like factory new, it will need to have a partition written to it, and then you can use it.
How can I have the full control and access to other my computers connected to the Internet?
Q. We have many computers connected to the web, How can I have full access or authorized access to these computers, by using additional softwares, or without is possible?
A. I'd recommend using VNC (eg. http://www.realvnc.com/). It lets you remotely control a computer - viewing and interacting with it as if you were sat at the desk in from of it. The computers can be of differnt types - VNC is available on Windows, Linux and Macs, so you can, for example, use a Windows computer at home to access a Linux or Mac at work. VNC is available for free.
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