Page 31 - Computer Science Class 11 Without Functions
P. 31

4.  Murugan wants to assemble a computer. Help him to identify the peripheral devices to perform the following tasks:
                    Input sound
                    Input textual data
                    To generate a hard copy of the output
                    To convert an image on paper into digital form
             Ans:   Input sound                                        Microphone
                   Input textual data                                  Keyboard
                   To generate a hard copy of the output               Printer
                   To convert an image on paper into digital form      Scanner
               5.  Asma is learning about different types of memories. Help her in understanding the key differences between various types
                  of memories by naming the following types of memories:
                  (i)  Although this type of memory is slower than the registers in the CPU,   it is faster than  primary memory.
                  (ii) This is the memory that stores programs currently being executed and is also known as read/write memory.
                  (iii)  This is a non-volatile memory that is often fitted inside a CPU cabinet of a personal computer,   although it can also be
                    connected externally through a USB port.
                  (iv) This type of non-volatile memory stores the boot loader program.
                  (v) Data and instructions in this type of memory are generally stored at the time of manufacturing.
             Ans:  (i)  Cache memory
                  (ii) RAM
                  (iii) Hard Disk
                  (iv) ROM
                  (v) ROM



                                                      Assessment


            A.  Multiple Choice Questions
               1.  Which of the following types of memories cannot store data permanently?
                  a. RAM                   b. ROM                 c. Hard disk          d. Pen drive
               2.  Which of the following components is part of the CPU?
                  a. Cache Memory                                 b. Arithmetic and Logic Unit (ALU)
                  c. Secondary Memory                             d. Solid State Drive (SSD)
               3.  Which of the following devices enables you to listen to songs saved on your computer?
                  a.  Microphone           b. Headphones          c. Scanner            d. Projector
               4.  Which of the following is open-source software?
                  a.  Mozilla Firefox      b. Microsoft Edge      c. Adobe Photoshop    d. Quickheal Antivirus
               5.  Which of the following is not a language processor?
                  a. Assembler             b. Compiler            c. Device Driver      d. Interpreter
               6.  Which of the following components of the CPU can be used to perform the task of comparing two data values?
                  a. Control unit          b. Memory registers    c. Output devices     d. Arithmetic and Logic Unit (ALU)
               7.  Which of the following is equivalent to 1 TB?
                  a. 1024 GB               b. 1024 KB             c. 1024 PB            d. 1024 MB
               8.  Which of the following terms refers to the physical components of a computer?
                  a. Device Driver         b. Hardware            c. Firmware           d. Operating System





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