Federal Government2079 BSQuestion 1 of 16

What is computer? Differentiate Analog and Digital computer.

5 marks

Exam year: 2079 BS / 2023 AD
Level: Gazetted First Class (Computer Operator – Prabidhik)
Paper: Paper II – Sewa Sambandhit Karya Gyan
Section: Section A

Model answer

A computer is an electronic device that accepts raw data as input, processes it according to instructions, and produces useful information as output.

Differentiate Analog and Digital computer:

Basis	Analog Computer	Digital Computer
Meaning	Measures continuous physical quantities (voltage, temperature, pressure)	Works on discrete digits (0s and 1s)
Data	Continuous signals, e.g. needle movement	Binary data, exact values
Accuracy	Approximate, less precise	Highly accurate and repeatable
Example	Speedometer, thermometer, old flight simulators	Desktop PC, laptop, smartphone
Use today	Special measurement/control systems	General purpose — offices, banks, schools

In short: analog = measures, digital = counts. All modern office computers in Nepal are digital computers.

Question source

Model answer

Question source

Model answer