An OS system performs these services for application 1) In a multitasking operating system where multiple programs can be running at a same time each application before giving another apllication turn 2) It manages the sharing of internal memory among multiple application 3) It send messages the sharing of internal memory among multiple application 4) It can offload message to each application user about status the of operation and any errors that may have occurred common desktop operating system: Windows is Microsoft flagship OS the DE fact standard for home and business computer in 1985, the GUI-based OS has been released in many versions Mac OS is the operating system for apple Macintosh line of personal computers and workstations. Linux is Unix-like OS that was designed to provide personal computer users a free or very low cost. Linux has a reputation as very efficient and fast-performing system. Windows OS have long dominated the market and continue to d
MICROPROCESSOR THE CHARACTERISTICS OF MICROPROCESSOR 1. N-bit processor: A processor is n-bit processor implies that (a) Its ALU is n-bit,i.e. the ALU can perform n-bit operation simultaneously. (b) Its internal data bus and register size is n-bit (c) Its external data bus is also n-bit 2. processing capability :It depends upon the number of instructions and flexibility of each instruction. 3. word length: It depends upon the width of internal data bus, registers , ALU etc. 4. clock frequency: the processing speed of microprocessor depends upon clock frequency. 5. Width of the data bus: this parameter decides word length of the microcomputer. this is the width of the external data bus. 6. Width of the address bus: This parameter decides the memory addressing capability of the microprocessor. 7. I/O addressing capability: The maximum number of the I/O ports accessed by the microprocessor depends upon the width of the I/O address provide in the I/O instr