supply and cooling fan. The keyboard, mouse, serial, USB, and parallel ports are built in.
Bandwidth refers to carrying capacity. The greater the bandwidth, the more data the bus, phone line, or other electrical path, can carry. Greater bandwidth, then, also results in greater speed.
A BBS (Bulletin Board System) is a computer system with a number of modems hooked up to it which acts as a center for users to post messages and access information.
The BIOS (Basic Input/Output System) program resides in the ROM chip, and provides the basic instructions for controlling your computer’s hardware. Both the operating system and application software use BIOS routines to ensure compatibility.
A buffer is a portion of RAM which is used to temporarily store data, usually from an application, though it is also used when printing, and in most key- board drivers. The CPU can manipulate data in a buffer before copying it, all at once, to a disk drive. While this improves system
A bus is a data pathway. The term is used especially to refer to the connection between the processor and system memory, and between the processor and PCI or ISA local buses.
Bus mastering allows peripheral devices and IDEs to access the system memory without going through the CPU (similar to DMA channels).
A cache is a temporary storage area for data that will be needed often by an application. Using a cache lowers data access times, since the needed informa- tion is stored in the SRAM instead of in the slower DRAM. Note that the cache is also much smaller than your regular memory: a typical cache size is 512KB, while you may have as much as 1GB of regular memory.
Cache size refers to the physical size of the cache onboard. This should not be confused with the cacheable area, which is the total amount of memory which can be scanned by the system in search of data to put into the cache. A typical setup would be a cache size of 512KB, and a cacheable area of 512MB.
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