#2 | CPU, Hardware & I/O Devices for JKSSB | Concept Through Questions EP 2 |

Who checks your JKSSB answer sheet? A machine: an input device called OMR. 🧾 In EP 2 we open the computer: the CPU, the generations, hardware, drivers, and every input/output device JKSSB keeps asking about, through 19 real questions. 📘 CONCEPT THROUGH QUESTIONS: every concept is taught by solving real JKSSB questions, locked in with "Points to Remember", and finished with NEW questions that could be asked next. In EP 2, CPU, Hardware & I/O Devices: ✅ Inside the CPU: ALU, Control Unit, registers (Program Counter vs Instruction Register) ✅ Generations of computers: vacuum tubes → transistors → ICs → microprocessors → AI; PARAM 8000 ✅ Hardware vs software, device drivers, firmware ✅ Inside the cabinet: motherboard, expansion boards, "no display, no beep" ✅ Input & output devices: OCR vs OMR vs MICR, graphics tablet, braille display, touchscreen ✅ 📌 Points-to-remember after every concept + one-screen recap ✅ ★ 6 new questions that could be asked next 📝 Real JKSSB previous-year questions, asked across JKSSB exams. Useful for every JKSSB exam with a computer section: Junior Assistant, Naib Tehsildar, Patwari, Accounts Assistant, Panchayat Secretary, Supervisor, Police SI & Constable, and more. ✔ Every answer is verified, not copied from a key. ⏱️ CHAPTERS (added after the final render) 📚 Series: EP 1 Memory & Storage · EP 2 CPU, Hardware & I/O · EP 3 Software & OS · EP 4 MS Office · EP 5 Internet & Networking · EP 6 Cyber Security & Number Systems 🔔 Subscribe, and tell me your score on the new questions in the comments! #JKSSB #ConceptThroughQuestions #JKSSBComputer #ComputerAwareness #JKSSBJuniorAssistant #NaibTehsildar #JKSSB2026 #DrAafaq