Solved Exercise:
Unit-III
Chapter-1: ICT in Daily Life
Chapter-2: Component of computer system
A. Fill in the blanks.
1. ICT stands for _____________.
Answer: Information and communication technology.
2. _________ are digital devices that are used to communicate information with others.
Answer: Mobile, tablets, computer
3. _______ is the set of programs that runs on the computer hardware.
Answer: Software
4. Devices that help to send input to the computer are called__________.
Answer: Input devices
5. A___________ helps to select, point or open program icons on the monitor screen.
Answer: Mouse
6. _________are small software applications that can run on mobile devices.
Answer: Mobile App
7. __________ can show visual output in the form of text and images.
Answer: Monitor
8. __________ print characters by spraying the paper with electrically charged ink.
Answer: Inkjet printer
9. RAM stands for ______________________.
Answer: Random Access Memory
10. ROM stands for _________________________.
Answer: Read Only Memory
B. Write 'T' for true and 'F' for false against the following statements.
1. There is no use of ICTs in the field of education. F
2. The physical parts of the computer are called hardware. T
3. Monitor and printer are examples of input devices. F
4. Keyboard is used to type text on the computer. T
5. RAM is the secondary memory of the computer. F
6. Peripheral devices are used to expand the functionality of the computer. T
7. ROM contains the start-up instructions of the computer. T
8. Primary memory is used to store data permanently. F
9. Operating system is an example of application software. F
10. WhatsApp is a popular mobile app. T
11. Software help users to give instructions to the hardware. T
C. Multiple choice questions. Tick the correct option.
1. Which of the following is an ICT tool?
a. mobile phone b. tablet c. radio d. all of the above
Answer: all of the above
2. Which of the following is an input device?
a. monitor b. scanner c. printer d. hard disk
Answer: scanner
3. Which of the following is an output device?
a. printer b. MICR c. OMR d. scanner
Answer: printer
4. Which device is also known as the Visual Display Unit(VDU)?
a. keyboard b. CPU c. monitor d. printer
Answer: monitor
5. The ICT is used in which of the following fields?
a. education b. healthcare c. business d. all of the above
Answer: all of the above
6. ICT helps to connect you with your friends through:
a. voice call b. video call c. chatting d. all are correct
Answer: all are correct
7. Which of the following is an application software?
a. MS Windows b. MS Word c. Linux d. Ubuntu
Answer: MS Word
8. Which of the following is the primary memory of the computer?
a. hard disk b. pen drive c. RAM d. CD
Answer: RAM
9. CD stands for
a. Common disc b. complete disc c. costly disc d. compact disc
Answer: compact disc
10. Which is the main storage device of the computer?
a. pen drive b. hard disk c. CD d. DVD
Answer: hard disk
D. Short answer type questions.
1. What do you mean by ICTs?
Answer: ICTs an abbreviation of Information communication Technologies that includes set of technological tools and resources that can be used to create, analyze, store, manage, access and share or exchange information through electronic means to communicate with others. These tools are mobile, computer, tablet, internet etc.
2. What is the use of ICTs in the education field?
Answer: ICT gives learners the freedom to learn at their own pace. Quality material can be made available to learners anywhere in the world. It even makes available quality learning tools to students in the language that they are comfortable with. ICT tools and resources have, therefore, become essential in education.
3. How do ICTs help in the healthcare sector?
Answer: One field that has benefitted enormously from ICT is healthcare and medicines. Through the use of ICT the records of patients can be accessed easily by their healthcare providers. Information regarding various health problems is available on different websites. ICTs allow healthcare experts to share knowledge and their research work.
4. How can radio and television help students in their studies?
Answer: Radio is a technology that uses radio waves to carry information such as sound. Todays Radio is used to transmit programs related to government schemes, news, entertainment, education, healthcare etc. The programs are broadcast by different radio stations. This ICT tool can be used by students to listen to news, interviews, educational programs on various subjects.
5. What do you mean by hardware and software?
Answer:
Hardware: Hardware are the physical parts of a computer system. We can touch, hold or carry the hardware parts form one place to another place.
Examples: Keyboard, Mouse, Printer, Monitor, Scanner etc.
Software: Software is a collection of programs, procedures and documentation that performs different tasks on a computer system. Software are the set of programs that guide the computer hardware to perform different types of tasks.
Examples: MS Windows, Linux, MS Word, Excel, PowerPoint, Photoshop, CorelDraw etc.
6. What are input devices? Give examples of input devices.
Answer: Input devices are the devices that help us to enter data and instructions into the computer. Modern multimedia computers perform a variety of tasks. Examples : Keyboard, Mouse, Scanner, light pen, joystick, trackball, MICR, OCR, OMR, BCR etc.
7. What are output devices? Give examples of output devices.
Answer: Output devices are the devices that are used to display or communicate the output or results of the data processing done by the computer. Examples: Monitor, Printer, Speakers, Headphones, Plotter etc.
8. What are storage devices? Give examples of storage devices.
Answer: Devices that are used to store data permanently are called storage devices. There are a number of storage devices that provide long-term storage so that we can store safely and refer to it in the future at any time we want. Examples: Hard disk, CD, DVD, Pen drive etc.
9. What are the two main types of computer memory?
Answer: The computer memory is mainly of two types- Primary memory and Secondary memory.
Primary memory: RAM and ROM
Secondary memory: Hard disk, USB flash drives, CD, DVD etc.
10. What is the use of RAM and ROM?
Answer:
The memory that directly accessible to the CPU is called the primary memory. Primary memory is divided into two types: RAM and ROM.
RAM: Random Access Memory is the main storage unit in a computer system. RAM is also known as Read/Write memory as we can write into it as well as read it randomly. RAM is temporary or volatile memory since its contents are cleared or erased when the computer is turned off.
ROM: Read Only Memory is a non-volatile memory. It does not lose data even when the power is turned off. ROMs are used for storing programs that are essential for the working of a computer.
Some other links:
No comments:
Post a Comment