The document discusses the need for operating systems. It states that operating systems control overall computer operations, coordinate devices and programs, and allow computers to work with users. Operating systems execute programs, allocate memory, and schedule jobs. They also provide a user interface to computing resources, prevent interference between users in multi-user systems, and handle any faults that occur in the computer.

1. Need for Operating Systems
 It controls overall operations of a computer
 It coordinates among various devices and programs
 It makes computer machines to work with users
 It executes programs, allocates memory space, and
schedules jobs
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2. Need for Operating Systems (contd)
 It provides user an interface to computing resources
 It prevents interface between different users in a
multi user system
 It takes users commands and reports to them
suitably
 It deals with any faults that may occur in the
computer
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3. Summary
In this class, we have learnt about
Operating system and types
Functions and need of an operating
system
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4. Frequently Asked Questions
1. Define Operating Systems?
2. Write the types of Operating Systems?
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5. Quiz
1. MS DOS is a
a. single user operating system
b. multi user operating system
Answer: a
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6. Quiz
2. WINDOWS NT is a
a. single user operating system
b. multi user operating system
Answer: b
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7. Quiz
3. WINDOWS XP is a
a. single user operating system
b. multi user operating system
Answer: a
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