FBISE, NCP & NBF-aligned resources for Classes 9–12

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Computer Chapter 1 : Test 2

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A university is comparing the impact of different technological developments on computing history. One innovation greatly improved reliability and reduced power consumption compared to vacuum tubes, while also making computers smaller and faster.

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A technology exhibition presents five computers from different generations. One system uses punched cards and machine language, another uses FORTRAN, a third uses ICs, a fourth uses microprocessors, and the last uses AI-driven voice recognition. Which sequence correctly represents the chronological evolution of computer generations?

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A person interacts with an ATM by touching options displayed on the screen. The same screen also shows transaction details and instructions.

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A customer support employee wears a headset during online meetings. The device allows the employee to hear participants and also speak to them through the same equipment.

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A business office uses a fax machine to receive printed contracts and send scanned copies to another office. Which classification best describes the fax machine?

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A sound engineer installs a device that records audio from a microphone and also sends processed sound to speakers. Which device performs both functions?

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A student uses a keyboard to enter text into a document. Which characteristic makes the keyboard an input device?

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A teacher projects a presentation onto a large screen for an entire classroom. The device receives processed data from the computer and displays it visually.

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A company uses Optical Mark Readers (OMRs) to process examination answer sheets. According to the given classification list, OMR belongs to:

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A computer suddenly stops responding to user commands. A technician explains that the component responsible for executing instructions and coordinating operations is malfunctioning.

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A student compares the CPU to the human brain because it manages and coordinates all activities occurring inside the computer system. Which statement best explains this comparison?

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During program execution, a component interprets instructions and sends control signals to memory, ALU, and input/output devices so that each performs the correct task at the right time.

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A programmer writes an instruction requiring two numbers to be compared. Which CPU component performs the comparison operation?

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A processor receives the instruction "Add two values and store the result." Which CPU component is directly responsible for carrying out the addition?

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A computer is fetching data from memory location 5000. Before retrieval occurs, a special register stores the address 5000 so the memory system knows where to access the data.

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A processor has already identified the memory location containing a value. The actual value is now being transferred between memory and CPU. Which register temporarily stores this transferred data?

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A complex arithmetic calculation requires temporary storage of intermediate results before the final answer is produced. Which register performs this role?

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A CPU has just completed executing one instruction and needs to know the memory location of the next instruction. Which register provides this information?

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During the fetch-decode-execute cycle, the processor is currently interpreting an instruction that was recently fetched from memory. Which register contains this instruction?

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A student states that registers are faster than RAM because they are located inside the CPU and provide immediate access during processing. Which statement best supports this claim?

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9th class objective books