The computer's Main Board is AKA a Motherboard which contains Input/Output (IO) functions through several connectors attached to the surface and rear panel of the board.
Desktop Computer's can have optional Add-on boards (Expansion Cards) inserted into Expansion socket slots to extend functions and communication abilities.
Likewise, many business and desktop replacement Laptop computers have/had expansion card slots (PCMCIA or PC Card).
As for a second board;
All computers have built in communication channels on the main board (USB ports) that do not require a second board.
Expansion card options are extensive and depend on the application for which they are designed. See Wikipedia link below for more.
Most computers use USB ports and some use Firewire ports to communicate with other devices via cables. (Printers, External Storage Devices, etc... Which have their own IO interface boards.)
Other popular USB Add-on devices include wireless adapters that add wireless network (WiFi) and Bluetooth capabilites to machines that did not come with wireless communication features.
A computer circuit board is used to connect the electronic components and circuits inside of a computer. Computer circuit boards are composed of laminates, copper clad laminates, and copper foil.
watches, cameras, clocks, reader boards
Computer Boards constitute of Gold plating on several Pinouts & Integrated devices as it is the good conductor of electricity & non reactive metal with non corrosive properties.Silver & Platinum doesn't found any application on the circuitry of Computer Boards.
Four Your standard computer has two IDE channels, each can support up to two devices for a total of 4 IDE devices. With additional IDE controllers, it is possible to have 8 12 or even 16 IDE devices on a system, but this is fairly uncommon.
Because it is the main circuit board in the computer that connect to all the other boards and component.
input devices we the keyboard, the mouse, the scanner, the light pen and many other, then output devices we the following the printer, the projector, the white boards, the speakers
Expansion Boards
The SMART boards were created to make a more intelligent space with which to work. The SMART board is an interactive computer controlled white board that is connected to a computer and projector. Larger amounts of information may be used instead of on a simple white board or chalk board. There is also space for interacting with the information.
Promethean boards are interactive whiteboards that use touch-sensitive technology to allow users to control a computer through the board's surface. They typically connect to a computer and project the computer's display onto the board. Users can interact with the projected content using a stylus or their fingers, enabling activities like drawing, writing, and navigating software. Additionally, Promethean boards often come with educational software and tools to enhance teaching and collaboration in classrooms.
To securely connect two 2x6 boards end to end, you can use wood glue and screws. Apply wood glue to the ends of the boards and then screw them together using wood screws. This will create a strong and secure connection between the two boards.
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Expansion boards That is the answer to Chapter 8, question 39 in Kinn's The Medical Assistant: An Applied Learning Approach, Study Guide, 10th edition.