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Computer software has to be “loaded” into the computer storage (as memory, or RAM). 1_______. This involves passing instructions from the application software, through the system software, to the hardware which ultimately receives the instruction as a machine code. 2_______.
Sometimes data movement involves moving data between memory and registers, which enable high-speed data access in the CPU. 3_______. So, this is sometimes avoided by using “pointers” to data instead. Computations include simple operations such as incrementing the value of a variable data element. 4_______.
Once the software has been loaded, the computer is able to execute the software
Each instruction causes the computer to carry out an operation – moving data, carrying out a computation, or altering the control flow of instructions
Moving data, especially large amounts of it, can be costly
More complex computations can involve many operations and data elements together
