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Explain in detail about Real time (transaction) processing
When booking seats on a flight, for illustration, real time (transaction) processing would be used. Response to a query is required to be very fast and once a seat is booked it needs to marked as "not available" immediately to avoid any risk of double booking.
Explain the types of hardware used in supermarkets These use many types of specialist I/O hardware. For instance: - Bar code readers/scanners (to read product details and e
Describe some general uses for Visual basic applications in general context? Ans) Visual basic can be used within almost all Microsoft products such as Map point, Visio, Auto ca
What are the two approaches used for generating the control signals in proper sequence? Hardwired control Micro programmed control
Q. What is External Modems? External Modems: Modems externally associated to PC via a parallel or serial port and into a telephone line at the other end. They can generally co
What is the difference between top-down and bottom-up, programming? Ans: Top-down and Bottom-up Approaches In Top-down programming approach, we begin by identifying the main
What are the advantages and disadvantages of macro pre-processor? Advantages Any of existing conventional assembler can be improved in this way to incorporate macro proces
Interrupts are signals which cause the CPU to suspend the currently executing program and transfer to a special program known as an interrupt handler. Interrupt handler determines
What is reentrant tasks and functions Tasks and functions without optional keyword automatic are static , with all declared items being statically allocated. These items will b
Define baud rate The rate of data transfer in serial data communication is signified in bps. Bits per second (bps) is the rate of transfer of information bits. Baud is the num
Explain what is a transaction in SAP terminology. In SAP terminology, a transaction is series of logically linked dialog steps.
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