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Introduction to Operating System (2. Basic Function of Operating System (…
Introduction to Operating System
6. Describe the following concept in relation of OS.
Multitasking
Multitasking is the concurrent or inserted execution of two or more jobs by a single CPU
Multi programming
Multi programming allows more processes to be available for execution at one time.
Time Sharing
Time-sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time.
Buffering
Buffer : a buffer is a region of memory used to temporarily hold data while it is being moved from one place to another.
Spooling
Spool is an acronym for simultaneous peripheral operation on-line.
Caching
A cache is a temporary storage area
7.Describe the component of OS.
Kernel
program that runs at all the time on the computer where all else being application program
Shell
Program that reads and interprets control statements is executed automatically. The function of a shell is quite simple: get the command statement and execute it.
File System
The OS system imposes a file system to allow the data to be stored, located and retrieved easily.
8. Identify the different interfaces of OS and example.
Voice Actuated
Microsoft Voice Command for PDAs
Graphical User Interface (GUI)
Command Line
MS-DOS and UNIX
Web Form
HTML, Perl, PHP, Java and .NET
5. Identify 2 various product of OS and give the suitable example.
CLOSED SOURCE SYSTEM
Mac OS, iOS
OPEN SOURCE SYSTEM
Linux, Unix
1. Definition of Operating System
Spooling
Buffering
Time Sharing
Multitasking
Multiprogramming
2. Basic Function of Operating System
-managing the various peripheral device
--booting the computer
-handles system resources
-provides file management
-make sure all the user tasks can be done properly
-provides user interface
-translate user command
-conduct the errors if occurred
-conduct input/output
-conduct interruption
-organize the storage
-I/O Operations
-communication
3. Explain 4 various type of OS structure,
MONOLITHIC
this system considered as "the big mess" because this structure is no structure
LAYERED
this approach breaks up the operating system into different layers.
MICROKERNEL
component in microkernel communicate directly with one an other
NETWORK AND DISTRIBUTED
a network operating system (NOS) is a software program that controls other software and hardware that runs on a network
4. Describe 3 various architecture of OS
single processor system
multiprocessor system
clustered system