Computer knowledge is an important part of the Odisha Police Constable recruitment examination. Being familiar with basic computer terminology, hardware, software, and operations is essential to score well in this section. Below are 30 multiple-choice questions (MCQs) designed to help candidates prepare for the computer knowledge section of the exam.
Top 30 Basic Computer Knowledge MCQs For Odisha Police Constable
- Which of the following is a volatile memory?
(a) ROM
(b) PROM
(c) RAM
(d) EEPROM
Ans. (c) RAM - What type of RAM needs frequent refreshing?
(a) S RAM
(b) D RAM
(c) PROM
(d) EPROM
Ans. (b) D RAM - Which type of RAM is faster?
(a) S RAM
(b) D RAM
(c) ROM
(d) EEPROM
Ans. (a) S RAM - Which of the following memory is non-volatile?
(a) D RAM
(b) ROM
(c) S RAM
(d) Cache memory
Ans. (b) ROM - Which memory stores data temporarily during execution of programs?
(a) ROM
(b) RAM
(c) PROM
(d) EEPROM
Ans. (b) RAM - Which of the following memory types uses transistors to retain data?
(a) D RAM
(b) S RAM
(c) EPROM
(d) MROM
Ans. (b) S RAM - The information stored in ROM is in which format?
(a) Hexadecimal
(b) Octal
(c) Binary
(d) Decimal
Ans. (c) Binary - What is the full form of EEPROM?
(a) Electrically Erasable Programmable Read Only Memory
(b) Enhanced Erasable Programmable Read Only Memory
(c) Extended Erasable Programmable Read Only Memory
(d) Electronic Erasable Programmable Read Only Memory
Ans. (a) Electrically Erasable Programmable Read Only Memory - Which type of ROM can be erased by exposing it to ultraviolet rays?
(a) PROM
(b) EEPROM
(c) EPROM
(d) MROM
Ans. (c) EPROM - Which memory requires a power supply to maintain its data?
(a) ROM
(b) PROM
(c) S RAM
(d) MROM
Ans. (c) S RAM - Which ROM is modifiable only once?
(a) PROM
(b) EEPROM
(c) EPROM
(d) D RAM
Ans. (a) PROM - Which of the following memory types is also known as permanent memory?
(a) RAM
(b) S RAM
(c) ROM
(d) Cache
Ans. (c) ROM - Which memory type stores data using capacitors?
(a) S RAM
(b) D RAM
(c) PROM
(d) EEPROM
Ans. (b) D RAM - Which of the following ROM types can be erased electrically?
(a) EPROM
(b) PROM
(c) EEPROM
(d) MROM
Ans. (c) EEPROM - What is the main advantage of S RAM over D RAM?
(a) Higher storage capacity
(b) Lower cost
(c) Faster access time
(d) Uses capacitors
Ans. (c) Faster access time - Which memory can be reprogrammed up to 10,000 times?
(a) S RAM
(b) PROM
(c) EEPROM
(d) D RAM
Ans. (c) EEPROM - The first ROMs were:
(a) MROM
(b) PROM
(c) EPROM
(d) EEPROM
Ans. (a) MROM - Which type of RAM is used to store data temporarily during system booting?
(a) ROM
(b) D RAM
(c) Cache memory
(d) PROM
Ans. (b) D RAM - What is the function of PROM?
(a) Stores data permanently
(b) Can be programmed once by the user
(c) Erases data electrically
(d) None of the above
Ans. (b) Can be programmed once by the user - Which of the following memories is the slowest?
(a) S RAM
(b) D RAM
(c) EEPROM
(d) ROM
Ans. (c) EEPROM - Which of the following is a pointing device?
(a) Keyboard
(b) Mouse
(c) Joystick
(d) Scanner
Ans: (b) Mouse - Which device is used to scan images or text and convert them into digital signals?
(a) Barcode Reader
(b) Joystick
(c) Scanner
(d) Light Pen
Ans: (c) Scanner - The touchpad in laptops is a replacement for which device?
(a) Keyboard
(b) Microphone
(c) Mouse
(d) Light Pen
Ans: (c) Mouse - Which device is used to record sound in its digital form?
(a) Microphone
(b) Light Pen
(c) Joystick
(d) Barcode Reader
Ans: (a) Microphone - Which device uses light sensitivity to interact directly with a computer screen?
(a) Mouse
(b) Barcode Reader
(c) Light Pen
(d) Scanner
Ans: (c) Light Pen - Which of the following devices can read bar codes?
(a) Scanner
(b) Light Pen
(c) Barcode Reader
(d) Joystick
Ans: (c) Barcode Reader - What is the main purpose of a joystick in a computer system?
(a) Typing commands
(b) Scanning documents
(c) Controlling movement in video games
(d) Recording sound
Ans: (c) Controlling movement in video games - Which device has a trackball at the bottom for movement?
(a) Mouse
(b) Keyboard
(c) Scanner
(d) Microphone
Ans: (a) Mouse - Which input device is often used in aeroplanes, cranes, and wheelchairs?
(a) Joystick
(b) Mouse
(c) Light Pen
(d) Keyboard
Ans: (a) Joystick - A keyboard is a modified version of which type of machine?
(a) Typewriter
(b) Joystick
(c) Mouse
(d) Scanner
Ans: (a) Typewriter
