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Er det forskjell på PCMCIA og Cardbus?


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CardBus

Last modified: Monday, July 21, 1997

 

The 32-bit version of the PCMCIA PC Card standard. In addition to supporting a wider bus (32 bits instead of 16 bits), CardBus also supports bus mastering and operation speeds up to 33 MHz.

PCMCIA

Last modified: Thursday, February 06, 2003

 

Short for Personal Computer Memory Card International Association, and pronounced as separate letters, PCMCIA is an organization consisting of some 500 companies that has developed a standard for small, credit card-sized devices, called PC Cards. Originally designed for adding memory to portable computers, the PCMCIA standard has been expanded several times and is now suitable for many types of devices. There are in fact three types of PCMCIA cards. All three have the same rectangular size (85.6 by 54 millimeters), but different widths

# Type I cards can be up to 3.3 mm thick, and are used primarily for adding additional ROM or RAM to a computer.

 

    * Type II cards can be up to 5.5 mm thick. These cards are often used for modem and fax modem cards.

 

# Type III cards can be up to 10.5 mm thick, which is sufficiently large for portable disk drives.

 

As with the cards, PCMCIA slots also come in three sizes:

# A Type I slot can hold one Type I card

 

    * A Type II slot can hold one Type II card or one Type I card

 

# A Type III slot can hold one Type III card or any combination of two Type I or II cards.

 

In general, you can exchange PC Cards on the fly, without rebooting your computer. For example, you can slip in a fax modem card when you want to send a fax and then, when you're done, replace the fax modem card with a memory card.

PC card

Last modified: Sunday, September 01, 1996

 

A computer device packaged in a small card about the size of a credit card and conforming to the PCMCIA standard.

http://www.webopedia.com/TERM/C/CardBus.html

http://www.webopedia.com/TERM/P/PCMCIA.html

http://www.webopedia.com/TERM/P/PC_card.html

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Tja.. Standardene overlapper hverandre ganske mye. Dvs. PCMCIA finnes i 16bit-utgave, noe Cardbus ikke gjør. PCMCIA finnes i 3 forskjellige tykkelser, noe Cardbus ikke gjør. Derimot så er PCMCIA 32bit Type II (5,5mm) helt identisk med Cardbus.

 

PCMCIA Type II er også det samme som PCCard

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