The Importance Of Information Systems

Information systems are used throughout the world. It is important to have a good design for your company’s Information system. Hardware components are the backbone of a computer based information system. Processing information requires a central processing unit (CPU). Three elements work together in the CPU1. Mathematical and logical calculations are performed in the arithmetic logic unit (ALU). Decoding of program information is achieved in the control unit. It is in the control unit that program information and data information flow is regulated. Registers store the information temporally for quick access before, during, and after the central processing unit executes them. Several central processing units can be tied together in a multiprocessor system. The advantage of a multiprocessor system is that more calculations-per-second are possible and this increases overall speed of the system. Computer and information systems of today are faster, more efficient, and have

This is because computer systems are usually at the center of highly efficient information systems. It would take years for manual labor to work the same calculations that a supercomputer can do in one day. Speed of a system is measured in hertz (Hz). One hertz is one cycle-per-second. Systems run so many cycles-per-second that a multiplier is added. Megahertz is one million cycles-per-second and gigahertz is one billion cycles-per-second. Storage capacity is another method of measuring aspects about an information system. Printed circuit boards can contain thousands of circuits used to store information. The most basic type of storage unit is a bit. This is a digital unit where it is either turned on or off. Eight bits strung together equals one byte. Bytes are the base unit when discussing storage capacity in a computer based information system. Prefixes are added which