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Related Flashcards
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Cards In This Set
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External Data Bus (EDB)
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A subsystem that transfers data between computer components inside a computer or between computers.
Example: Man in the Box's eight lights/switches and the eight lights and switches outside the box |
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Register
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Memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind . Example: Man In the Box's Worktable or tiny storage areas on the CPU.
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General Purpose Registers
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Intel named them...AX,BX,CX,DX
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CPU's Instruction Set
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The set of instructions which a computing or data-processing system is capable of performing. The set of instructions which an automatic coding system assembles.
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CLK Wire
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The charge of the CLK wire tells the CPU that there is more information to be processed.
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Clock Cycle
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Single charge to the CLK wire.
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Clock Speed
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Max number of clock cycles that the CPU can handle is a given amount of time. It also is as fast as the CPU can operate.
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System Bus Speed
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Determines the speed at which the CPU and the rest of the PC operate.
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System Crystal
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Sends out an electric pulse at a certain speed to the clock chip where it is multiplied then causes firing upon the clk wire.
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Memory
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Any device that can hold eight zeros and ones that the CPU can access. It must hold data and programs.
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RAM Random Access Memory
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Is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disk.
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DRAM Dynamic RAM
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A type of RAM that only holds its data if it is continuously accessed by special logic called a refresh circuit. Many hundreds of times each second, this circuitry reads the contents of each memory cell, whether the memory cell is being used at that time by the computer or not. Due to the way in which the cells are constructed, the reading action itself refreshes the contents of the memory. If this is not done regularly, then the DRAM will lose its contents, even if it continues to have power supplied to it. This refreshing action is why the memory is called dynamic.
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MCC Memory Controller Chip
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The MCC can grab any byte of RAM and place it on the EDB for the CPU to read.
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Address Bus
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Second pair of wires that allow the CPU to communicate with the MCC.
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Some common file size units are:
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