Is it possible to get both ISA and PCI expansion slots on a motherboard?

Answer 1

Now you wouldn't want isa on your motherboard. isa is a very old and outdated standard that is rarely if ever seen any longer.

Any hardware that is still isa is so out of date and slow, it would seriously degrade the performance of your computer and should be replaced.

//edit//

The reason you would want both ISA and PCI expansion slots are because they are replaceable. If one burns out, you can replace it instead of replacing a whole motherboard.

Answer 2

Now you wouldn't want isa on your motherboard. isa is a very old and outdated standard that is rarely if ever seen any longer. Any hardware that is still isa is so out of date and slow, it would seriously degrade the performance of your computer and should be replaced. The reason you would want both ISA and PCI expansion slots are because they are replaceable. If one burns out, you can replace it instead of replacing a whole motherboard.

The problem is that there is only one expansion slot opening available on the back of the case. With this type of expansion slot you must choose whether you want to use an ISA card or a PCI card. You can't use both. That's the reason it's called a shared PCI/ISA slot. This is a good place to use a modem, since modems are available on both ISA and PCI expansion cards. Notice that the modem has its own speaker. When you connect to the Internet and hear the modem dialing, it's this speaker that you hear those sounds coming from. Modems convert a computer's digital data into analog waves, so that it can travel through the telephone lines to another computer. The other computer's modem then converts these analog waves back into digital data, so that the other computer can understand it. Modems are rated by how many bits per second that they can receive data. They normally send data at a slightly lower rate, which is around 48Kbps, (or 48,000 bits per second), for a typical 56Kbps modem. Just because a modem is rated at 56Kbps does not necessarily mean that it will be able to receive data at that speed. Phone lines and your Internet service provider also play a big part in how fast your computer is able to receive and send information via the Internet. Some phone lines are only capable of transmitting data at 28.8k. For this reason, even though Internet service providers usually offer a 56K connection, you can only access the Internet at whatever speed your phone lines will permit.

Answer 3

Yes. ISA and PCI slots were found on the same motherboard for many years. ISA slots were eliminated from motherboards around 2000, since not having one was one of the requirements for Windows 2000 certification. it is still possible to purchase motherboards with ISA slots using modern chipsets and processors, but these are usually fairly expensive (over $350 apc) and used mainly for industrial or scientific equipment.

Answer 4

The main reason is for compatibility between old (ISA) and newest (PCI) technologies.