Tarea operativos
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Transcript of Tarea operativos
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7/30/2019 Tarea operativos
1/2
Luis Enrique Reyes Rodrguez A01167995
1. Investiga los siguientes conceptos:
1
Kernel: The kernel is the essential center of a computeroperating system, the core that provides
basic services for all other parts of the operating system. A synonym is nucleus. A kernel can be
contrasted with a shell, the outermost part of an operating system that interacts with user
commands.
2Microkernel: Its the model of the kernel in the OS that distribute portions of code in simple
modular operations required to build a virtual machine on the hardware of a computer system
3
Risc: (reduced instruction set computer) is a microprocessor that is designed to perform asmaller number of types of computer instructions so that it can operate at a higher speed
meaning that can perform more millions of instructions per second, or MIPS. Since each
instruction type that a computer must perform requires additional transistors and circuitry, a
larger list or set of computer instructions tends to make the microprocessor more complicatedand slower in operation.
4Cuanto:(Quantum) The period of time for which a process is allowed to run in a preemptive
multitasking system
5
Multiprogramacin: Multiprogramming is a rudimentary form of parallel processing in whichseveral programs are run at the same time on a uniprocessor. Since there is only one processor ,
there can be no true simultaneous execution of different programs. Instead, the operating system
executes part of one program, then part of another, and so on. To the user it appears that all
programs are executing at the same time.
6
Exokernel: Exokernel is an operating system developed at the Massachusetts Institute of
Technology that seeks to provide application-level management of hardware resources. Theexokernel architecture is designed to separate resource protection from management to facilitate
application-specific customization.
7 Interrupcin: An interrupt is a signal from a device attached to a computer or from a programwithin the computer that causes the main program that operates the computer OS to stop and
figure out what to do next.
8
Buffer: A buffer is a data area shared by hardware devices or program processes that operate at
different speeds or with different sets of priorities. The buffer allows each device or process to
operate without being held up by the other. In order for a buffer to be effective, the size of thebuffer and the algorithms for moving data into and out of the buffer need to be considered by the
buffer designer. Like a cache, a buffer is a "midpoint holding place" but exists not so much to
accelerate the speed of an activity as to support the coordination of separate activities.
9Despachador: A job scheduler is a program that enables an enterprise to schedule and, in some
cases, monitor computer "batch" jobs
10 operacin en lnea : Using peripherals that are connected to the processor.
11vector de interrupciones: is the memory location of an interrupt handler, which prioritizes
interrupts and saves them in a queue if more than one interrupt is waiting to be handled.
12
Polling: is the continuous checking of other programs or devices by one program or device to
see what state they are in, usually to see whether they are still connected or want to
communicate.
http://searchcio-midmarket.techtarget.com/definition/operating-systemhttp://searchenterpriselinux.techtarget.com/definition/shellhttp://searchenterpriselinux.techtarget.com/definition/shellhttp://searchcio-midmarket.techtarget.com/definition/operating-system -
7/30/2019 Tarea operativos
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Luis Enrique Reyes Rodrguez A01167995
13
Spool: To spool (which stands for "simultaneous peripheral operations online") a computerdocument or task list is to read it in and store it, usually on a hard disk or larger storage medium
so that it can be printed or otherwise processed at a more convenient time. One can envision
spooling as reeling a document or task list onto a spool of thread so that it can be unreeled at amore convenient time.
14cdigo transitorio : These are programs that are not loaded into memory, but are stored in thedisk drive or hard disk, for later use, they can be executed at any time from the command
prompt, as long as you keep in mind where located,
15
cdigo residente:These are programs that are transferred from the operating system to reside inmemory (RAM) and are located in the Command.com, which can be executed at any time from
the command prompt
16
cdigo re-entrante: Basically, write code so that it can be interrupted during a task to be
executed (reentered) again to perform another task, and then continue with your original task.
This normally includes the state information saved in local variables, instead of using static
variables or global variables.
17 cdigo relocalizable: Its the object code that run correctly regardless of the position where load.
18Proceso: is an instance of a program running in a computer. It is close in meaning to task, a termused in some operating systems.
18 Cache: is a place to store something temporarily.
20Hilo: a thread is placeholder information associated with a single use of a program that can
handle multiple concurrent users.
All information was obtained from:
Rouse, M. (2012, September 10). Computer dictionary. Retrieved fromhttp://whatis.techtarget.com/