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Q. What is microcomputer system?
The microcomputer has a single microprocessor and a number of RAM and ROM chips as well as an interface unit which communicates with several external devices via the I/O Bus.
Input/Output subsystem of a computer referred to as I/O offers an resourceful mode of communication between central system and output environment. External devices which are under direct control of computers are said to be connected on-line. These devices are created to read information into or out of memory unit upon command from CPU and are determined to be part of computer system. I/O devices attached to computer are also known as peripherals. We can roughly classify external devices or peripherals in 3 categories:
What is the need of a hybrid in telephone networks? Digital exchanges need receive and transmit signals upon separate two-wire circuits. It calls for two-wire to four-wire con
Define Apple MobileMe Calendar The MobileMe Calendar is a web-based calendar that can be accessed from any computer linked to the Internet, Mac or Windows. What makes it more u
Storing a word in Memory: That is similar process with fetching a word from memory. The required address is loaded into the MAR After that data to be written are lo
Bus arbitration: In single bus architecture when more than 1 device requests the bus, a controller known as bus arbiter decides who gets the bus; this is known as the bus arbi
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What is memory mapped I/O? When the I/O devices share the similar address space, the arrangement is known as memory mapped I/O.
The number of control lines for 32 to 1 multiplexer is ? Ans. For 32 (2 5 ) the number of control lines and to select one i/p between them total 5 select lines are needed.
How can we use / display table in a screen? ABAP/4 offers two mechanisms for showing and using table data in a screen. These mechanisms are TABLE CONTROLS and STEP LOOPS.
Minimum Spanning Tree: Given a weighted graph G, it is often desired to make a spanning tree T for G, like the sum of weights of the edges in T is the least. Like tree is known as
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