Computer Science Previous Year Questions 2026 | SSC CGL

Computer Science - MOST IMPORTANT SSC CGL Previous Year Questions

Practice real questions from previous year exams of SSC CGL.

📘 Computer Architecture & Central Processing Unit📚 Basic Facts
Q1

Which of the following is also known as the brain of the computer?

🎯 SSC CGL (Tier-II) 02/03/2023
📘 Computer Architecture & Central Processing Unit📚 Basic Facts
Q2

C. P. U. consists of

🎯 SSC CGL (TIER-1) 09-09-2016, 4.15 pm
📘 Operating System📚 Core OS Functions (Process Management, Memory Allocation, etc.)
Q3

CPU Scheduler is also known as………….

🎯 SSC CGL (TIER-1) 09-09-2016, 1.15 pm
📘 Computer Generations📚 Third Generation Computers
Q4

1965 to 1975 was an era of :

🎯 SSC CGL (Tier-II) 02/03/2023
📘 Computer Architecture & Central Processing Unit📚 Registers
Q5

Which circuit is used to store one bit of data?

🎯 SSC CGL (TIER-1) 08-09-2016, 4.15 pm
📘 Memory Devices - Primary or Main Memory📚 Virtual Memory
Q6

When does the page fault occur?

🎯 SSC CGL (TIER-1) 27-10-2016, 10 am
📘 Database Management System📚 Database Keys (Primary Key, Foreign Key, Candidate Key)
Q7

Which of the following statement is true?

🎯 SSC CGL (TIER-1) 10-09-2016, 1.15 pm
📘 Memory Devices - Primary or Main Memory📚 Cache Memory
Q8

Cache memory acts between ___ and __.

🎯 SSC CGL (TIER-1) 27-10-2016, 1.15 pm
📘 Operating System - Command Line Type📚 Unix
Q9

Which of the following was the first operating system written in 'C' language?

🎯 SSC CGL (Tier-II) 02/03/2023
📘 Database Management System📚 Database Languages (DDL, DML, DCL, TCL)
Q10

_________ Provides the facility of searching for information and computing the obtained information.

🎯 SSC CGL (Tier-II) 02/03/2023
📘 Internet & Web Technology📚 Misc
Q11

Which country has the largest internet users?

🎯 SSC CGL (TIER-1) 03-09-2016, 4.15 pm
📘 Digital Payments & E-Banking📚 Immediate Payment Service (IMPS)
Q12

Money transfer through mobile is called..........

🎯 SSC CGL (TIER-1) 07-09-2016, 4.15 pm
📘 Internet & Web Technology📚 History and Evolution of Internet
Q13

Which of the following is the first working prototype of internet?

🎯 SSC CGL(Tier-I)-04/06/2019 (Shift- II)
📘 Internet & Web Technology📚 Social Media Platforms and Tools
Q14

____ is the founder of facebook.

🎯 SSC CGL(Tier-I)-04/06/2019 (Shift-I)
📘 Network Security Measures📚 Authentication & Authorization
Q15

Which of the following is used to protect in computer system, in the absence of more complete protection schemes?

🎯 SSC CGL (TIER-1) 11-09-2016, 10 am
📘 Memory Devices - Primary or Main Memory📚 Cache Memory
Q16

What is the name of memory buffer used to accommodate a speed differential?

🎯 SSC CGL (TIER-1) 28-08-2016, 4.15 pm
📘 Memory Devices - Primary or Main Memory📚 Cache Memory
Q17

In IT, the method for updating the main memory as soon as a word is removed from the cache is called

🎯 SSC CGL (TIER-1) 01-09-2016, 1.15 pm
📘 Memory Devices - Primary or Main Memory📚 Cache Memory
Q18

Cache memory works on the principle of .........

🎯 SSC CGL (TIER-1) 07-09-2016, 4.15 pm
📘 Operating System📚 Core OS Functions (Process Management, Memory Allocation, etc.)
Q19

In computer processing,……...selects processes from the pool and loads them into memory for execution.

🎯 SSC CGL (TIER-1) 02-09-2016, 10 am
📘 Memory Devices - Primary or Main Memory📚 Misc
Q20

In IT, associative memory is called as

🎯 SSC CGL (TIER-1) 04-09-2016, 10 am