Chapter 1 of 29
Concept Maps
Computer Fundamentals — Concept Maps
NIOS · Class 12 · Computer Science
3 concept maps of Computer Fundamentals for NIOS Class 12 Computer Science, each also written out as a text outline.
45 questions30 flashcards5 concepts
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3 Concept Maps
Computer Fundamentals - Complete Chapter Overview
The map in words
- Computer Fundamentals
- Input Devices
- Keyboard
- 104 keys QWERTY
- Mouse
- Pointing Device
- Electro-mechanical
- Scanner
- Creates Bitmap
- OCR
- Converts to ASCII
- Digitizes Books
- MICR
- Magnetic Ink
- Used in Banking
- OMR
- Senses Marks
- Used in Exams
- Bar Code Reader
- Supermarkets
- Keyboard
- CPU
- Control Unit CU
- Fetches Instructions
- Decodes and Directs
- ALU
- Arithmetic Operations
- Logical Operations
- Memory Registers
- Temporary Storage
- Inside CPU
- Control Unit CU
- Output Devices
- Monitor VDU
- Soft Copy
- CRT older type
- TFT-LCD modern
- Printers
- Dot Matrix
- Ink-jet Line Printer
- Laser Page Printer
- Thermal
- Plotter
- CAD and CAM
- Speakers
- Monitor VDU
- Memory
- Primary Memory
- RAM
- Volatile
- Read Write
- ROM
- Non-volatile
- Stores BIOS
- PROM EPROM EEPROM
- Cache Memory
- CPU Memory
- Between CPU and RAM
- RAM
- Secondary Memory
- Hard Disk
- CD-ROM 600 MB
- DVD 4.7 GB
- Pen Drive USB
- Flash Memory
- Primary Memory
- Ports
- Serial Port
- One bit at a time
- COM Port RS232C
- Parallel Port
- 8 bits at a time
- USB
- Universal Serial Bus
- InfraRed
- Wireless Light
- Bluetooth
- 10 meter range
- Serial Port
- Classification
- Analog
- Continuous Quantities
- Blood Pressure Monitor
- Digital
- Binary 0 and 1
- Microcomputer
- Minicomputer
- Mainframe
- Supercomputer
- Hybrid
- Weather Forecasting
- Analog
- Input Devices
Computer Processing Flow - Step by Step Execution
The map in words
- Input: User enters data
- Control Unit: Receives signal
- What operation?
- Arithmetic: ALU: Performs calculation
- Result stored in memory
- Output: Display on monitor
- End
- Output: Display on monitor
- Result stored in memory
- Logical: ALU: Compares values
- Storage: Memory: Stores in address
- Arithmetic: ALU: Performs calculation
- What operation?
- Control Unit: Receives signal
The flowchart shows the four basic functions of a computer in a sequential cycle: Input → Processing → Storage → Output.
The map in words
- Input
- Processing
- Storage
- Output
- User receives result
- Output
- Storage
- Processing
Explore these maps interactively
Explore DiagramsFrequently Asked Questions
What are the important topics in Computer Fundamentals for NIOS Class 12 Computer Science?
Key topics in Computer Fundamentals include Working of a Computer - The Four Basic Functions, Input Devices, Central Processing Unit (CPU), Output Devices. Study these first, then practise questions on each for the NIOS Class 12 board exam.
What do the concept maps for Computer Fundamentals show?
The 3 maps show how the ideas in Computer Fundamentals connect: Computer Fundamentals - Complete Chapter Overview; Computer Processing Flow - Step by Step Execution. Each map is also written out as an outline on this page.
How should I revise Computer Fundamentals for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Computer Fundamentals. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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