SSC-Level Computer MCQs: Ace Your Exams with These 50 Must-Know Questions for 2025!
Preparing for SSC exams like CGL, CHSL, or MTS in 2025? Computer knowledge is a game-changer, testing your grasp of basics, hardware, software, and internet skills – all tailored to the Staff Selection Commission’s syllabus. With exams looming and AI-driven tech shaping the world, brushing up on these fundamentals can boost your score big time. We’ve crafted 50 SSC-level MCQs based on reliable sources like SSCAdda, Testbook, and Gradeup, focusing on beginner-friendly concepts relevant as of 6:09 PM IST on Monday, September 22, 2025. Each question comes with a concise explanation, and answers are at the end for self-assessment. Dive in, test your skills, and get exam-ready!
Section 1: Computer Fundamentals (15 MCQs)
Master the core concepts SSC loves to test.
- Who is known as the father of computers?
a) Bill Gates
b) Charles Babbage
c) Alan Turing
d) Steve Jobs - What is the full form of RAM?
a) Random Access Memory
b) Read Access Memory
c) Remote Access Memory
d) Rapid Access Memory - Which generation of computers used transistors?
a) First
b) Second
c) Third
d) Fourth - The binary equivalent of decimal 5 is:
a) 101
b) 110
c) 100
d) 111 - What does CPU stand for?
a) Central Processing Unit
b) Computer Power Unit
c) Central Program Unit
d) Control Processing Unit - Which is an output device?
a) Keyboard
b) Mouse
c) Printer
d) Scanner - The smallest unit of digital information is:
a) Byte
b) Bit
c) Nibble
d) Word - What does URL stand for?
a) Universal Resource Locator
b) Uniform Resource Locator
c) Unified Resource Link
d) Universal Record Link - Which memory is volatile?
a) ROM
b) RAM
c) Hard Disk
d) SSD - The first mechanical computer was:
a) ENIAC
b) Analytical Engine
c) UNIVAC
d) EDVAC - Which is an operating system?
a) MS Word
b) Windows
c) Adobe Photoshop
d) Notepad - What is not a computer language?
a) HTML
b) Java
c) Microsoft Paint
d) Python - How many bits are in a byte?
a) 4
b) 8
c) 16
d) 32 - Which device connects to the internet?
a) Monitor
b) Modem
c) Keyboard
d) Printer - What does GUI stand for?
a) Graphical User Interface
b) General User Interface
c) Graphical Utility Interface
d) General Utility Interface
Section 2: Hardware and Software (10 MCQs)
Focus on components and software types.
- Which is not a hardware component?
a) Motherboard
b) MS Excel
c) Hard Disk
d) CPU - BIOS is stored in:
a) RAM
b) ROM
c) Hard Disk
d) Cache - What powers the CMOS?
a) Main battery
b) CMOS battery
c) Power supply
d) CPU - Which is faster?
a) HDD
b) SSD
c) Both equal
d) Depends on usage - A device driver is:
a) Hardware
b) Software
c) Both
d) None - Cache memory is:
a) Slower than RAM
b) Faster than RAM
c) Equal to RAM
d) Not memory - Which connects a monitor?
a) USB
b) HDMI
c) Ethernet
d) Serial - Example of utility software:
a) Antivirus
b) Windows
c) MS Word
d) Chrome - Motherboard is:
a) Input device
b) Central circuit board
c) Output device
d) Storage - What is POST?
a) Power-On Self Test
b) Program Output System
c) Power Off System Test
d) None
Section 3: Internet and Networking (15 MCQs)
Key for SSC’s internet basics section.
- What does WWW stand for?
a) World Wide Web
b) World Web Wide
c) Wide World Web
d) Web World Wide - HTTP uses port:
a) 80
b) 443
c) 21
d) 25 - IP address version 4 is:
a) 32-bit
b) 64-bit
c) 128-bit
d) 16-bit - Router works at:
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4 - What is a firewall?
a) Hardware
b) Security software
c) Input device
d) Storage - DNS converts:
a) IP to Domain
b) Domain to IP
c) Both
d) None - LAN stands for:
a) Local Area Network
b) Large Area Network
c) Long Area Network
d) Local Access Network - SMTP is for:
a) Web browsing
b) Email sending
c) File transfer
d) Chat - VPN provides:
a) Speed
b) Security
c) Storage
d) None - MAC address is at:
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4 - Inventor of WWW:
a) Bill Gates
b) Tim Berners-Lee
c) Vint Cerf
d) None - HTTPS uses port:
a) 80
b) 443
c) 21
d) 25 - Bandwidth measures:
a) Speed
b) Data transfer rate
c) Delay
d) None - WiFi standard is:
a) 802.11
b) 802.3
c) 802.15
d) None - Hub operates at:
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4
Answers with Explanations
Check your score: 50-40 = Expert | 39-30 = Good | Below 30 = Revise!
- b) Charles Babbage – Designed the Analytical Engine (1837).
- a) Random Access Memory – Temporary storage.
- b) Second – 1950s, used transistors.
- a) 101 – Binary for 5 (4+1).
- a) Central Processing Unit – Brain of computer.
- c) Printer – Outputs data.
- b) Bit – Smallest unit (0 or 1).
- b) Uniform Resource Locator – Web address.
- b) RAM – Loses data on power off.
- b) Analytical Engine – First mechanical concept.
- b) Windows – Manages hardware/software.
- c) Microsoft Paint – Graphic tool, not language.
- b) 8 – Standard byte size.
- b) Modem – Connects to internet.
- a) Graphical User Interface – Visual OS interaction.
- b) MS Excel – Software, not hardware.
- b) ROM – Stores BIOS permanently.
- b) CMOS battery – Powers settings memory.
- b) SSD – Faster due to no moving parts.
- b) Software – Controls hardware.
- b) Faster than RAM – Closest to CPU.
- b) HDMI – High-definition video/audio.
- a) Antivirus – Maintains system health.
- b) Central circuit board – Connects components.
- a) Power-On Self Test – Checks hardware on boot.
- a) World Wide Web – Internet’s foundation.
- a) 80 – Standard HTTP port.
- a) 32-bit – IPv4 format.
- c) Layer 3 – Network layer.
- b) Security software – Blocks threats.
- b) Domain to IP – Resolves names.
- a) Local Area Network – Small area connectivity.
- b) Email sending – Simple Mail Transfer Protocol.
- b) Security – Encrypted connection.
- b) Layer 2 – Data Link layer.
- b) Tim Berners-Lee – Created WWW in 1989.
- b) 443 – Secure HTTP port.
- b) Data transfer rate – Measures capacity.
- a) 802.11 – Wireless LAN standard.
- a) Layer 1 – Physical layer, broadcasts data.
Prep Resources: Boost skills with SSCAdda Computer Notes, Testbook Free MCQs, or Gradeup’s SSC Computer Quiz. Practice daily – share your score below and let’s conquer SSC together! 🌟