BOARD OF SECONDARY EDUCATION KARACHI ANNUAL EXAMINATION 2025 XI COMPUTER MIDNIGHT SHORT ANSWER QUESTIONS Q1. Why a RAM should be a temporary storage and how cache memory is different from it? Q2. Differentiate the following: i. Router and Gateway ii. Analogue Computer and Digital Computer iii. Soft Copy and Hard Copy iv. Analogue Signal and Digital Signal Q3. Why system software is necessary for any computer system? Q4. Why address bus is called unidirectional and why ROM is called non-volatile memory? Q5. Define bus and its types? Define Port. Enlist its types? Define IoT. Name any three IoT devices. Q6. Define Network Protocols. Name any three. Q7. Define the following: i. Modem ii. Half Duplex Mode iii. Full Duplex Mode iv. Compiler and Interpreter v. RAM and ROM Q8. Explain Synchronous and Asynchronous. Draw a diagram of the following: (A + B) . (A + B) = C Q9. Name any three magnetic storage medium. Q10. Define Metropolitan Area Network and Broadcasting. Q11. Write the full form of: EEPROM, DPI, TCP/IP, HTTPS, HTML, ASCII, GUI Q12. Convert the following number system: (1011)₂ = (?)₁₀ (144)₈ = (?)₁₀ (AB3)₁₆ = (?)₁₀ (263)₈ = (?)₁₀ (640)₈ = (?)₁₀ (784)₁₀ = (?)₈