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Input/output (I/o) unit:
This unit provides the interface between the computer and the computer peripherals. A computer peripheral is any unit, which is attached to, but is not part of, the computer - e.g. visual display units, teleprinters, etc. A simple computing system may have only one input and one output. In such cases, an analogue-to-digital converter (ADC) may suffice for the input, and a digital-to-analogue converter (DAC) for the output. Alternatively, complex-computing systems can literally service thousands of peripherals.
Figure illustrates a simple I/O unit. The I/O unit can be described as a fan-out (and fan-in) device. The computer's 8-bit bi-directional data bus can be connected to port 1, 2 or 3. The port chosen is dependent upon the address, on the address bus. The system illustrated allows three peripherals to communicate with the computer. Only one peripheral at a time can send data to the computer, or receive data from the computer. However, this is not a problem, because the computer works very much faster than the peripheral, and hence, it appears that the computer services all three peripherals simultaneously.
APPLICATION SOFTWARE Application Software generally is the software which is used to generate customized applications for the clients. Ex: Word Star, Lotus 1-2-3, Ms-
advantages of file base system
Memory Management: The purpose of the memory management system is to load programs into memory in such a way as to give each program loaded the memory that it requires for
1. (40 points) Add a course drop method to the system that you implemented in Problem Set 1. Modularize your new implementation properly. For any new methods that you introduce: 1.
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Hello, Could you create a linux calculator using very basic java code (not complex, because I am a novice java coder). It should be called into the terminal for interaction. Thank
ATM = Asynchronous Transfer Mode Fast packet switching and multiplexing technology (cell-based ) Support the universe of services voice, video and data traffic Provides quality of
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The key characteristics of DRAM?
Question 1 Elaborate the various steps in performing a Mail Merge. Execute one mail merge operation for sending invitation for a conference which is being conducted in your organi
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