CPU card details

1. Basic function is to implement programs and process data, is the core of a computer system;
2.CPU Card has the function of the development and change due to the different CPU and different;
3.CPU Card can be so simple with only the CPU and its supporting components, can also be complex to a fully functional PC board;
4. Provides a standard system function expansion bus, such as PCI, ISA, etc.;
5. Or directly through the backplane power supply;
6. With a standard mechanical: PICMG, COMPACT, PCI and so on.

1: How to buy CPU cards? 
    1. From a structural form of points, CPU cards are mainly full CPU cards, Half-Size CPU card, embedded CPU board three kinds, all kinds of CPU card has its own characteristics and scope of application. Full-length CPU card and backplane using PICMG bus connection, high speed, high-performance, support for CPU speed higher than the half-length card, connect backplane scalable ISA cards and PCI cards, if the system requirements or the need to use high-speed PCI card, the must use full CPU card; Half-Size CPU card and backplane using ISA bus connection, small size, connectivity backplane ISA expansion cards can only be applied to speed much, do not use PCI card system, for the small size of the system can also be Half-Size CPU card use to save space; embedded CPU boards with single board structure, and expansion slots are limited, but functional for embedded systems.
    fast, the highest performance for high speed requirements of the system; 586, PIII performance range between 386,486 and P4, in some asked not to be too high, the system can be selected.
| 3. From the interface function to points, with integrated VGA, LCD, NETWORK, DiskOnChip, PC/104, IDE, FDD, USB, COM port interface, such as full-function CPU card; also some CPU card not integrated network functions; also some CPU and VGA card not integrated network functions; some CPU features PC/104 interface card does not have. In the selection of CPU card is not functional as possible, to meet the system requirements and set aside the case of upgrades, functional little as possible, because the more functions the lower the reliability of the card, on the contrary the less card function the higher the reliability.

2: Non-contact CPU Card 
    Non-contact smart card CPU card as a kind of smart card technology with contactless technology integration can be a smart card chip, while achieving the ISO / IEC 14443 and ISO / IEC 7816 2 (no contact / have contacts) integration circuit IC card dual interface with international standards, but also only supports ISO / IEC 14443 standard of pure contactless CPU card. 
● Standard: full compliance with ISO / IEC 14443 1/2/3/4
● Protocol: support for ISO / IEC 14443? D4 of the T = CL protocol
● Non-contact communications: support for Type A or Type B
● Capacity: 8Kbytes (optional 4-80Kbytes)
● specification: support PBOC2.0 electronic passbook / e-wallet / credit note applications; can support social security card specification, the card specification fuel oil, Sinopec Gas Card specification, as well as international standards for contactless payments
● comply with ISO / IEC 14443 as described in the Mechanism for Conflict Prevention
● support the anti-plug power processing and data protection mechanisms
● cards with anti-collision mechanism that allows multiple cards at the same time into the Trading Range
● support for a card for multiple applications, each application between the independent (multi-application, the firewall function)

3: the application of market 
    Applies to non-contact logic encryption card the same application conditions, but more demanding safety systems, such as: a result of expansion of multi-applications to non-contact logic encryption card application system upgrade, due to realization of micro-payment increase card wallet balance within the upper limit, higher demands on the safety of the new system and the transformation of the system. Such as: Calls for the speedy adoption of micro-payment, self-consumption, and the body of non-recognition, related to financial planning and payment, social security, fuel, integration, access control and so on. You can pay a minimal additional investment situation, to transform and create a new high-security payment and identification systems.