Page 28 - Computer Science Class 11 Without Functions
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17. Which of the following has a command line user interface?
a. MS DOS b. MS Windows c. Mobile OS d. Touchscreen
B. State whether the following statements are True or False:
1. A microphone (or mic) is an input device that takes sound waves as input. __________
2. The result of an arithmetic operation in ALU is either TRUE or FALSE. __________
3. ROM is slower than RAM __________
4. The output that is printed on paper is known as soft copy. __________
5. Google Drive is an example of virtual storage. __________
6. Assembly language is a high-level language. __________
7. The object code is converted to source code by a language translator. __________
8. Once a program is compiled, its execution does not require the compiler. __________
9. MS PowerPoint is an example of application software. __________
C. Fill in the blanks.
1. A computer system is a combination of ____________ and ____________.
2. The data and instructions received from the user using the input devices are processed by the ____________.
3. The device used to convert a document or an image that is on paper into digital form is called ____________.
4. The ____________ sends instructions to ALU to perform the required arithmetic and/or logical operations.
5. A high-speed memory placed between CPU and primary memory is known as ____________.
6. A ____________ is the smallest unit of graphical information on the computer screen.
7. The data bus, control bus, and address bus in the CPU are collectively known as ____________.
8. ____________ level languages are machine-independent.
9. A ____________ acts as an interface between a device and the operating system.
10. An ____________ is a software that acts as an interface between the user and the computer system.
D. Answer the following questions:
1. Give two examples of the following:
(i) Input Devices
(ii) Output Devices
(iii) Secondary Storage Devices
(iv) Proprietary Software
(v) Open Source Software
(vi) Low-Level Languages
(vii) High-Level Languages
(viii) System Software
(ix) Utilities
(x) Language Processors
(xi) General Purpose Application Software
Ans: (i) Keyboard, Mouse
(ii) Printer, Monitor
(iii) Hard Disk, Flash Drive
(iv) MS Office, Adobe Photoshop
(v) Python, Gimp
(vi) Machine Language, Assembly Language
(vii) Python, Java
(viii) Operating System, Device Drivers
(ix) Antivirus, Backup Utility software
26 Touchpad Computer Science-XI

