Vintage 1980's Button.
Direct Memory Access Systems are used in the modems of computers to allow some hardware subsystems to access the system memory without using the central processing unit. The DMA System essentially allows the computer to multitask. Furthermore DMA allows the copying or moving of large amounts of data within the memory of the computer. DMA ultimately allows for transfer of large blocks of data while freeing up the computer to continue to function. Without DMA channels the central processing unit would be fully occupied with any other read or write process. The data transfer process becomes faster and more easily executed with the DMA System. Floppy disks, which also store bits of memory, become unnecessary with the automatic transfer of data through the DMA System.
Most of the items we sell is sold "AS IS", unless it's marked as new.
We sell a wide variety of used items. We try to describe them as best we can but we are not professionals, nor are we experts on any type of items we sell. Most of the items we sell are used. When we sell a used item normal wear, scratches, & signs of use should be expected. Most items will need a quick cleaning. We do not offer warranties or refunds. Should a refund be granted for any reason it will be less all the shipping fees. All sales final. No returns.
International bidders...items will be shipped to's US hub to be shipped to you by their Global Shipping Program. Wait for invoice from.
INVENTORY-need