TODAY COMPUTER ARCHITECTURE CLASS TEST 2

TODAY COMPUTER ARCHITECTURE CLASS TEST 2 - COMPUTER...

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COMPUTER ARCHITECTURE CLASS TEST TWO SECTION A a. Define the term track, cylinder, and sector. - Track is a data organized on the platter in a concentric set of rings. Cylinder is the set of all the tracks in the same relative position on the platter. Sector is data being transferred to and from the disk. b. Explain the term striped data - Striped data are files that have been segmented or splits into many segments and sends to several disks to decrease the time it takes to write or access data from disks. c. List three broad classifications of external, or peripheral, devices. - Human readable: Suitable for communicating with the computer user. Example Screen, printer, keyboard. - Machine readable: Suitable for communicating with equipment. Example Monitoring and Control. - Communication: Allow a computer to exchange data with a remote device, which may be a human-readable device, such as terminal, a machine-readable device, or even another computer. Example Modem and Network Interface Card. d. Programmed I/O: The processor issues an I/O command on behalf of a process to an I/O module; that process then busy-waits for the operation to be completed before proceeding. Interrupt-driven I/O: The processor issues an I/O command on behalf of a process, continues to execute subsequent instructions and is interrupted by the I/O module when the latter has completed its work. The subsequent instructions may be in the same process, if it is not necessary for that process to wait for the completion of the I/O. Otherwise, the process is suspended pending the interrupt and other work is performed.
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