What is an Operating System ??
1 answer:
Hi Pupil Here's Your Answer :::
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An operating system is a system software, that after being initially loaded into the computer by a good program, manages all the other programs in a computer.
The application programs make use of the operating system by making request for services through a different Application Program Interface (API). In addition, users can interact directly with operating systems through a user interface such as command language or Graphical User Interface(GUI).
Functions Performed by the OS :
♤ The operating system acts as an interface between the computer hardware and the user.
♤ It manages computer's memory.
♤ It handles interrupts.
♤ It schedules the jobs.
♤ It manages Input/Output devices.
All major computer platforms (hardware and software) required and sometimes include an Operating System. Linux, Windows, Mac, VMS, OS/400 X, and z/OS are examples of operating systems.
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Answer:
This is your answer please check this ✔
Answer:
z = a.c' + a.b.d' + b.c'.d'
Explanation:
The truth table for this question is provided in the attachment to this question.
N.B - a' = not a!
The rows with output of 1 come from the following relations: 01 > 00, 10 > 00, 10 > 01, 11 > 00, 11 > 01, 11 > 10
This means that the Boolean expression is a sum of all the rows with output of 1.
z = a'bc'd' + ab'c'd' + ab'c'd + abc'd' + abc'd + abcd'
On simplification,
z = bc'd' + ab'c' + ac'd' + ac'd + abc' + abd'
z = ac' + abd' + bc'd'
Hope this helps!
