mainframe manufacturers

) and OSPF (Open Shortest Path First -- Open Shortest Path First) and BGP (Border Gateway Protocol-Border Gateway Protocol ). RIP and OSPF are internal gateway protocols and are applicable to the operation of unified routing protocols of a single ISP. A network operated by an ISP is called an autonomous system. BGP is a routing protocol between autonomous systems and an external gateway protocol. RIP is the longest route protocol and the simplest route protocol. It mainly transmits route informa

Currently on the disk storage market, the storage classification (table one below) is divided according to the server type: Closed system storage and open systems storage, closed system mainly refers to mainframe, AS400 and other servers, open systems are based on servers including Windows, UNIX, Linux and other operating systems Open System storage is divided into: built-in storage and external storage, open system plug-in storage is divided into: di

disk rotation, moving the head read and write data and other details), # Second: The application to the hardware resources of the race request to become orderly for example: many applications are actually sharing a set of computer hardware, for instance, there may be three applications need to request a printer to output the content, then a program competes to the printer resources to print, and then may be B competition to the printer resources, It can also be C, which causes the disorder, th

motherboard is the adoption of an open architecture. There are 6-8 expansion slots on the motherboard, which are plugged into the control card (adapter) of the PC peripheral device. By replacing these cards, the corresponding subsystems of the microcomputer can be upgraded locally, so that the manufacturers and users have more flexibility in configuring the models. In short, the motherboard in the whole computer system plays a pivotal role in color.

What are the main configurations of desktop computers? The main structure of the PC is the motherboard: motherboard, CPU (central processing unit), primary storage (memory), expansion card (display card sound card, etc. some motherboards can integrate these), power supply, optical drive, secondary storage (hard disk), floppy peripheral: monitor, keyboard, mouse (speaker, camera, External modems modem, etc.). Next, let's take a look at the computer purchase guide. Desktop computer mainly look

the notebook computer field. Today, SSD solid-state hard disk market has been subdivided from the storage market, the technology gradually mature and perfect, and has been in the notebook computer and mainframe and other fields have been applied. Commercial areas have also been involved in finance, telecommunications, medical, electricity, aviation, telecommunications and other industries. With the application of SSD solid-state hard disk gradually

replacement. The pilot is designed to maintain and run so that the host server will not be able to access the data stored in it. Of course, all high-availability features will increase system costs. High-end features of the Guide The Guide also provides many advanced functions that are unavailable on small fixed port number switches. Both brocade and Cisco directors support virtual SAN, FICON for the mainframe, and remote connection using FCIP, iSCSI

-related issues. now I want to add a partition format. The hard disk is just a medium for recording information in electromagnetic mode. we can manage it in different formats. Different operating systems use different formats. the same operating system may also support multiple formats. Microsoft's operating system uses the fat16 format as the DOS partition format. later, windows95 and windows98 support the fat32 format. windowsNT uses the NTFS4 format. windows2000 and XP support the NTFS5 forma

Server as the enterprise information to the core computer, running the Enterprise key business. The unexpected redundancy or failure of the server may cause incalculable loss to the enterprise. The server is also a computer, but it is different from the desktop computer or laptop we use. In addition to the data processing performance than the average desktop computer to meet complex enterprise data processing, while ensuring that the server's normal and reliable operation of the importance of th

manufacturers and manufacturers of computer mainframe can be completely unrelated to each other, the only thing they need to observe is the USB interface standard. This feature is reflected in the software development process, the benefits are too big. Members of each development team only need to be concerned with implementing their own business logic, there is

The evolution of it is a process of spiraling up. In the early days of large computers, it was the domain of its profession, all computer systems were closed, and a company offered services ranging from hardware to software and repair and even soft revision upgrades, which could be said to be due to the imperfections of the entire industry. But the entire IT industry is constantly on the road to open, since the IBM PC standard opened, IT industry rapidly mature, today completely changed the mode

convenient tool class.7. objroot. addchild (New colorcube (0.4 ));8.9. Return objroot;10.} // The createscenegraph method for creating the scenario graph of hellojava3da ends.11.} // end of the hellojava3da classCode snippet 1-2 createscenegraph Method s used by the hellojava3da class to create a scenario Graph The hellojava3da class is inherited from the Applet Class, but this program can run independently as an application because it uses the mainframe