1. Name the software required to make a computer functional. Write down its two primary services.
2. How does the computer understand a program written in high level language?
3. Why is the execution time of the machine code less than that of source code?
4. What is the need of RAM? How does it differ from ROM?
5. What is the need for secondary memory?
6. How do different components of the computer communicate with each other?
7. Draw the block diagram of a computer system. Briefly
write about the functionality of each component.
8. What is the primary role of system bus? Why is data bus is bidirectional while address bus is unidirectional?
9. Differentiate between proprietary software and freeware software. Name two software for each type.
10. Write the main difference between microcontroller and microprocessor. Why do smart home appliances have a microcontroller instead of microprocessor embedded in them?
11. Mention the different types of data that you deal with while browsing the Internet.
12. Categorise the following data as structured, semi- structured and unstructured:
• Newspaper
• Cricket Match Score
• HTML Page
• Patient records in a hospital
13. Name the input or output device used to do the following:
a) To output audio
b) To enter textual data
c) To make hard copy of a text file
d) To display the data or information
e) To enter audio-based command
f) To build 3D models
g) To assist a visually-impaired individual in entering data
14. Identify the category (system, application, programming tool) of the following software:
a) Compiler
b) Assembler
c) Ubuntu
d) Text editor
Answers
Answer:
1 Operating System
2 It is converted to machine language by assembler
3 because machine code is in binary form and directly executed by the computer.
4.RAM is the memory used by the computer for temporary storing data needed for execution since it is faster than secondary storage.
ROM is a non volatile memory whereas RAM is volatile
5. It is used to store large volumes of data for a long period of time it is cheaper than ROM and is non volatile.
6. All components communicate over BUS
8. It connects all parts of the computer. Since address is mapped from source to destination it is unidirectional while data is transferred from both source to destination and destination to source.
9. proprietary software is licensed and there are restrictions on its usage. whereas freeware is easily downloadable and there are no restriction whatsoever
10. microcontroller is a chip with preprogrammed controlling features whereas microprocessor is just a processor and requires other component and program for usage.
microcontroller is sufficient to power and control all the functions of the small appliances.
11. html,xml,text,graphical etc
12. structured- html page,
unstructured- newspaper, cricket score
semi-structured- hospital records.
13.speaker, keyboard,printer, monitor/ screen, mic, touch display
14.abd- prog tool
c- application
Explanation: