class 9 computer system practice exercise
EXERCISE CBSE Class 9 Computer Applications Que 1. A collection of eight bits is called _____ (a) byte (c) record (b) word (d) file Que 2. Which of the following is an example of non-volatile memory? (a) ROM (b) RAM (c) LSI (d) VLSI Que 3. Which of the following is a unit of measurement used with a computer system? (a) byte (b) megabyte (c) gigabyte (d) All of the above Que 4. Which of the following statements is false? (a) secondary storage is non-volatile (b) primary storage is volatile (c) when the computer is turned off, data and instructions stored in primary storage are erased (d) None of the above Que 5. What does OCR stand for? (a) Optical Character Reader (b) Optical Character Recognition (c) Operational Character Reader (d) Only Character Reader Que 6. Dot Matrix is a type of (a) Tape (c) Printer (b) Disk (d) Bus Que 7. The secondary storage devices can only store data but they cannot perform (a) Arithmetic operations (b) Logic operations (c) Fetch operations...