DEFINITIONS OF OPERATING SYSTEM (OS) :-
An operating system consists of a set of programs, which controls, coordinates and supervises the activities of the various components of a computer system.
In other words “An operating system is a program which acts as an interface between a user and hardware”.
FUNCTIONS OF OPERATING SYSTEM
Operating system is a large and complicated software consisting of several components. It is responsible for managing all the resources attached to a computer system.MEMORY MANAGEMENT: Memory management of an operating system takes care of allocation and de-allocation of main memory to various processes.
FILE MANAGEMENT: File management module of operating system manages files held on various storage devices as well as transfers file from one storage device to another.
INPUT/OUTPUT MANAGEMENT: The input/output management module of the OS coordinates and assigns different input and output devices, namely terminals, printers, disk drives, tape drives etc. it hides the complexity of interfacing to devices from user program and the user.
- SPEED
- UNIT OF TRANSFER
- DATA REPRESENTATION
- SHARING
- BUFFERING
- SPOOLING
SOME COMPUTER ABBERVATION :-
TIME TO REVISE
(iii) database program (iv) database warehouse
(iii) Interpret instructions (iv) direct operations
(iii) cell address (iv) value
(iii) pagination (iv) grid
Answer: (ii)
(iii) A CD-RW can be written to, but s CD-ROM can only be read from
(iv) A CD-RW holds more information than a CD-RW
(iii) Stephen Hawkins (iv) Albert Brown
Answer: (i)
(iii) Motherboard (iv) RAM
Answer: (iii)
(iii) laptop (iv) server
Answer: (iv)
This entry passed through the Full-Text RSS service - if this is your content and you're reading it on someone else's site, please read the FAQ at http://ift.tt/jcXqJW.
No comments:
Post a Comment