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Computer Studies
For Class IX (2021) & X (2022 and onward)
(Arts / General Group)
Model Papers
Solution
BOARD OF SECONDARY EDUCATION KARACHI
MODEL QUESTION PAPER
S.S.C. (ANNUAL) EXAMINATIONS 2021 for IX, 2022 for X And ONWARDS
COMPUTER STUDIES (THEORY) Elective
(CLASS - IX) GENERAL GROUP
SECTION "B" (Short Answer/Questions)
Note: Answers any 10 questions from this section, all questions carry equal marks. Q.2. Draw a chart, with period, technology and major inventions of all generations of computer.
Ans: Computer Generation Table
Generation | Period | Technology | Example of Machine (Major Inventions) |
---|---|---|---|
First | 1940-1956 | Vacuum tubes | ENIAC, UNIVAC |
Second | 1956-1963 | Transistors | IBM 7094 and IBM 1401 |
Third | 1964-1971 | ICs | IBM 360 and IBM 370 |
Fourth | 1971 to Present | Microprocessors | Apple Macintosh, IBM PC. |
Fifth | Present and Beyond | Artificial Intelligence Technology. | Humanoid Robot |
Q.3: Draw a block diagram of CPU
Q.5: Enlist Input, Output and Storage devices?
Ans: INPUT DEVICES:
-
Text Entering Device
1. Key Board - Pointing device
2. Mouse
3. Track ball
4. Touch pad Or Track pad
5. joy stick - Image Scanners
6. Optical Mark Recognition (OMR)
7. Optical Barcode Reader (OBR)
8. Optical Character Recognition (OCR) - Other Types of Input devices:
9. Microphones
10. Touch Screen
11. Magnetic Ink
12. Digital Camera
13. Webcam
14. Bio-metric Devices
OUTPUT DEVICES:
-
Soft Copy Output Devices
1. Monitors
2. Data Projectors
3. Speakers - Hard Copy Output Devices
4. Printers
5. Plotters
STORAGE DEVICES
-
Primary Storage Devices
1. RAM
2. ROM - Secondary Storage Devices
3. Hard Disk
4. CD and DVD
5. SD Card and USB
Q.7: Define term software and mention their categories.
Ans: Software:
is a set of instructions that a computer uses to perform a task. It is a general term for a computer program.
Software is the programs and applications that run on computer and make the computer usable.
Types Of Software:
There are two main types of software:
- System Software and
- Application Software.
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