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11-15: Read the passage and answer the questions that toflow on the basis of the information provided in the passage.

Multitasking by Windows
Multitasking lots you run several applications simultaneously. While you use a word processor in the foreground, your Web browser can be downloading a file, unseen and unattended, in the background. As each application loads, the processor allocates a chunk of memory for the exclusive use of that application. When an application needs more memory, it sends a request to Windows, which checks to see how much memory is available and assigns an additional free stretch of RAM to that application. If there's not enough unallocated RAM to supply the application, Windows checks a table that shows how recently different sections of memory have been used. It then copies the contents of the oldest used RAM to virtual memory, hard disk storage your PC treats as if it were RAM. Windows then assigns the RAM to the application asking for it. Too little real RAM can result in extensive swapping between memory and disk, which slows your PC,

To multitask all the programs loaded In memory, Windows assigns each program a slice of the processor's time. When one program's time using the processor is up, Windows instructs the processor to save whatever it's doing by writing the contents of the processor's registers to RAM. Registers are like the processors scratch pads where it stores data temporarily as it processes the data. Windows also saves a digital bookmark In the application's code to save its place.

After the processor has cleared the registers, the processor fills them again with new data from the next program, and begins executing that program's Instructions from a new location In RAM until that program's time slice expires. Windows tells the processor to save those registers and repeat the process for the next application being multitasked. If a program needs the services of a PC's hardware, such as a printer port or video card, Windows first checks whether another multitasked program Is already using that service. If it's In use, Windows puts the now request into a queue until the current hardware operation is completed. Then Windows gives the requesting program access to the hardware through drivers or the BIOS.
11) If there is insufficient RAM to run an application, Windows

A) Uses virtual memory instead of RAM B) Clears the RAM for the application C) Uses registers as the RAM D) Copies the contents of the oldest used RAM to virtual memory, then assigns the RAM to the application

12) Multitasking means,

A) Multiple programs are processed at any instant of time B) Multiple programs are assigned a slice of the processor's time C) Multiple programs use the RAM through swapping D) Multiple programs use the services of a single hardware

13) According to the passage, a program being processed if is in need of the services of PC's hardware makes

A) Windows checks and puts a request to use it immediately as it is currently being processed 6) Windows checks and puts a request into queue if it is already in use C) Windows checks and puts a request into queue if it is already in use and keeps processing the program until the current hardware operation is completed D) Windows checks and puts a request into queue if it is already in use and stores the program in registers until the current hardware operation is completed

14) In multitasking, when one program slice of processor time is over

A) Processor writes contents of registers to RAM and from there to virtual memory, the hard disk storage B) Processor writes contents of registers to RAM and fills them again with next programs instructions C) Processor writes contents of registers to RAM and fills them again with next programs data and executes program's instructions from RAM D) Processor writes contents of registers to RAM and starts executing the next program from RAM

15) Choose the most accurate statement

A) If an application needs additional memory, it sends a request to Windows, which assigns available RAM to the application B) If an application needs additional memory, 9 sends a request to Windows, which saves oldest used RAM to hard disk and assigns the RAM to application C) If an application needs additional memory, it sends a request to Windows which saves oldest used RAM to virtual memory and assigns the RAM to application D) If an application needs additional memory, it sends a request to Windows, which starts swapping between memory and disk to free some RAM and assigns to the application

  • english -

    Once again, we HELP but do not DO the work for you. Let's see your answers first.

    Sra

  • english -

    sry sir my answers is
    11.d
    12.b
    13.c
    14.c
    15.c
    plz check these answers and give me reply sir

  • Programming Qs -

    Assistance needed.

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