Chapter 8 Computer

1. Computer is an electronic device that:  

   a) Only stores data  

   b) Manipulates, stores, retrieves and processes data ✅  

   c) Generates power  

   d) Amplifies sound  

2. A computer mainly consists of how many units?  

   a) 2  

   b) 3 ✅  

   c) 4  

   d) 5  

3. Which unit is called the brain of the computer?  

   a) Input unit  

   b) Output unit  

   c) Central Processing Unit (CPU) ✅  

   d) Memory unit  

4. ALU performs:  

   a) Storage operations  

   b) Arithmetic and logical operations ✅  

   c) Input operations  

   d) Output display  

5. Control Unit's main function is:  

   a) Arithmetic calculations  

   b) Manage and control processor activities ✅  

   c) Data storage  

   d) Display output  

6. Memory Unit handles:  

   a) All storage work ✅  

   b) Input processing  

   c) Output generation  

   d) Power supply  

7. Input devices include:  

   a) Monitor  

   b) Printer  

   c) Keyboard, Mouse, Scanner ✅  

   d) Speaker  

8. Output devices include:  

   a) Keyboard  

   b) Scanner  

   c) Monitor, Speaker, Printer ✅  

   d) Mouse  

9. Primary memory examples:  

   a) HDD, SSD  

   b) RAM, ROM, Cache ✅  

   c) Keyboard, Mouse  

   d) Monitor  

10. Secondary memory examples:  

    a) RAM, ROM  

    b) HDD, SSD ✅  

    c) CPU  

    d) ALU  

11. Microprocessor is:  

    a) Complete computer on chip  

    b) CPU chip with ALU for data processing ✅  

    c) Only memory  

    d) Input device  

12. Microprocessor is:  

    a) Low cost, single purpose  

    b) Standalone, general purpose, expensive ✅  

    c) Embedded only  

    d) Sensor  

13. Microcontroller consists of:  

    a) CPU, RAM, ROM, I/O, Timer ✅  

    b) Only CPU  

    c) Display only  

    d) Power supply  

14. Microcontroller examples:  

    a) AMD, Intel  

    b) ATMEGA32 ✅  

    c) HDD, SSD  

    d) Keyboard  

15. Microcontroller usage:  

    a) General purpose computing  

    b) Single specific purpose ✅  

    c) Large servers  

    d) Supercomputers  

16. Embedded system is:  

    a) General purpose computer  

    b) Hardware + software for specific function ✅  

    c) Only software  

    d) Power supply  

17. Embedded system examples:  

    a) Supercomputer  

    b) Smartwatch, Washing Machine, Robots ✅  

    c) Mainframe  

    d) Laptop only  

18. Types of computers include:  

    a) Only Desktop  

    b) Super, Mainframe, PC, Laptop, Tablet ✅  

    c) Sensors only  

    d) Amplifiers  

19. Microcontroller vs Microprocessor:  

    a) Microcontroller has I/O ports, single purpose ✅  

    b) Microprocessor cheaper  

    c) Both same  

    d) Microcontroller no CPU  

20. Computer memory classified into:  

    a) Primary and Secondary ✅  

    b) Input and Output  

    c) CPU and ALU  

    d) Analog and Digital