Archive for Naresh Manandhar

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Nepal Oil Corporation Ltd., Senior Computer Assistant Questions (Solved)

Nepal Oil Corporation Limited, Technical/Miscellaneous,
Senior Computer Assistant (5th Level)

Competitive Written Examination
Date: 2073-07-28

 Key [C]
Time: 2 hr 30 mins
Full Marks: 100

Section “A”: Multiple Choice 25 x 2 = 50

1. Objects on the slide that hold text are called

a) Placeholders

b) Object holders

c) Auto layout

d) Text holder

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Solved Question Paper of PSC Assistant Computer Operator Exam 2073

Solved Question Paper of PSC Assistant Computer Operator Exam 2073
Exam Date: 2073-02-32

Time: 45 minutes FM: 50

Objective Questions (50 x 1 = 50 marks)

1. Which command is used to display all the files having (.exe) extension but the different file name?

A) dir *.ext

B) dir filename.*

C) dir filename.ext

D) dir *.sys

 

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Solved Question Paper of PSC Computer Operator Exam 2073

Solved Question Paper of PSC Computer Operator Exam 2073
Exam Date: 2073-01-29

Time: 45 minutes FM: 50

Objective Questions (50 x 1 = 50 marks)

1)      IBM 1401 was brought to prepare the census report of …

a)      2018 BS

b)      2028 BS

c)      2038 BS

d)     2048 BS

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Solved Question Paper of PSC Assistant Computer Operator Exam 2072

Solved Question Paper of PSC Assistant Computer Operator Exam 2072

Exam Date: 2072-03-29

Time: 45 minutes FM: 50

Objective Questions (50 x 1 = 50 marks)

1. What happens when you click on insert >> picture>> clip art?

A. It inserts a clipart picture into document
B. It lets you choose clipart to insert into document
C. It opens clip art task bar
D. None of the above

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Solved PSC Computer Operator Exam 2072

Solved PSC Computer Operator Exam 2072

Exam Date: 2072-03-05

Time: 45 minutes FM: 50

Objective Questions (50 x 1 = 50 marks)

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Solved questions – PSC Computer Operator

लोक सेवा आयोग

राजपत्र अनंकित प्रथम श्रेणी, विविध सेवा

Computer Operator

KEY ‘C’

time :45 minute

Full Mark: 50

Date: 2071/02/15

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os-function

Operating System

An operating System (OS) is an intermediary between users and computer hardware. It provides users an environment in which a user can execute programs conveniently and efficiently.

In technical terms, It is a software which manages hardware. An operating System controls the allocation of resources and services such as memory, processors, devices and information.

Definition

An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.

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ram

Computer Memory

A memory is just like a human brain. It is used to store data and instruction. Computer memory is the storage space in computer where data is to be processed and instructions required for processing are stored.

The memory is divided into large number of small parts. Each part is called cell. Each location or cell has a unique address which varies from zero to memory size minus one.

For example if computer has 64k words, then this memory unit has 64 * 1024=65536 memory location. The address of these locations varies from 0 to 65535.

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binary-number

Number System

When we type some letters or words, the computer translates them in numbers as computers can understand only numbers.

A computer can understand positional number system where there are only a few symbols called digits and these symbols represent different values depending on the position they occupy in the number.

A value of each digit in a number can be determined using

  • The digit
  • The position of the digit in the number
  • The base of the number system (where base is defined as the total number of digits available in the number system).

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computer-ports

Computer Port

What is a Port?

  • A computer port is a physical docking point using which an extenal device can be connected to the computer.
  • A computer port can also be programmatic docking point through which information flows from a program to computer or over the internet.

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