Installing is the process of setting up
software to work with the computer, printer, and other hardware components. When buying a computer, it usually has some software preinstalled on its
hard disks. This enables you to use the computer the first item you turn it on. To begin installing additional software from a CD or DVD, insert the
program disk into the CD or DVD drive. The computer then copies the the program from the disc to the computer''s hard disk. Once software is installed, you can use or run, it. When you instruct the computer to run an
installed program, the computer loads it, which means the program is copied from storage to memory. Once in
memory the computer can carry out, or execute , the instruction in the program.
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