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Computer Fundamentals | Kerala PSC LDC

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  1. Fact 1 of 8

    A byte is made of 8 bits

    One byte equals 8 bits, and a bit is the smallest unit of data, either 0 or 1. Exam questions on memory units often start from this basic conversion.

  2. Fact 2 of 8

    Kilobyte in computing: 1024 bytes

    In computing, 1 KB is conventionally 1024 bytes, since memory is addressed in powers of two. Keep this in mind, as many PSC questions test binary-based units.

  3. Fact 3 of 8

    Father of the computer

    Charles Babbage, a British mathematician, designed the Analytical Engine, a mechanical general-purpose computer, and is widely called the father of the computer. Ada Lovelace wrote notes on it that are often cited as the first computer program.

  4. Fact 4 of 8

    ENIAC: an early giant

    ENIAC, completed in 1945, is generally regarded as the first general-purpose electronic digital computer. It used vacuum tubes and filled a large room.

  5. Fact 5 of 8

    RAM forgets when power is off

    RAM is volatile memory, so the data stored in it is lost when the power is switched off. This is why unsaved work disappears after a sudden shutdown.

  6. Fact 6 of 8

    The brain of the computer

    The CPU carries out instructions and is made of the Arithmetic Logic Unit (ALU) and the Control Unit. It is often called the brain of the computer.

  7. Fact 7 of 8

    Stored-program concept

    The Von Neumann architecture keeps both program instructions and data in the same memory. Most modern computers still follow this design.

  8. Fact 8 of 8

    Linux began as a student project

    Linus Torvalds released the first version of the Linux kernel in 1991 while he was a student in Finland. Linux is now one of the most widely used open-source operating systems.

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