UPSC  >  Famous Books for UPSC Exam (Summary & Tests)  >  Elements of Computer - Computer Fundamentals, Computer Awareness

Elements of Computer - Computer Fundamentals, Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC

Document Description: Elements of Computer - Computer Fundamentals, Computer Awareness for UPSC 2022 is part of Computer Fundamentals /Terminologies for Famous Books for UPSC Exam (Summary & Tests) preparation. The notes and questions for Elements of Computer - Computer Fundamentals, Computer Awareness have been prepared according to the UPSC exam syllabus. Information about Elements of Computer - Computer Fundamentals, Computer Awareness covers topics like and Elements of Computer - Computer Fundamentals, Computer Awareness Example, for UPSC 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Elements of Computer - Computer Fundamentals, Computer Awareness.

Introduction of Elements of Computer - Computer Fundamentals, Computer Awareness in English is available as part of our Famous Books for UPSC Exam (Summary & Tests) for UPSC & Elements of Computer - Computer Fundamentals, Computer Awareness in Hindi for Famous Books for UPSC Exam (Summary & Tests) course. Download more important topics related with Computer Fundamentals /Terminologies, notes, lectures and mock test series for UPSC Exam by signing up for free. UPSC: Elements of Computer - Computer Fundamentals, Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC
1 Crore+ students have signed up on EduRev. Have you?

Elements of Computer

The core elements of a computer include ALU (Arithmetic & Logic Unit), Memory or Storage Unit, Control Unit and I/O devices (Input & Output Devices). The memory unit, control unit and ALU is clubbed as a CPU (Central Processing Unit).

CPU (Central Processing Unit)

The CPU is considered the brain of the computer. It controls all parts of the computer including data processing (like storing data, retrieving data, executing data).

Control Unit

It performs all tasks except the data processing acts. It obtains the instructions from the memory, intercepts it and directs the following operation. It also communicates with the input and output devices. It is regulates the transfer of data.

ALU 

The Arithmetic and Logic Unit is a circuit that performs arithmetic and logical functions.

The arithmetic function involves mathematical functions like subtraction, addition, division, multiplication, etc.,

The logical function involves functions like selecting, matching, sorting, etc.,

I/O Unit

The Input and output devices are the interface for the user and the computer to access the data from the user and provide the processed data to the user. The input devices like keyboard, mouse, joystick, barcode scanner, etc., is used to input the data into the computer. The computer processes the data and provides the data back to user through output devices like monitor, printer, graphic plotter, etc.,

Memory Unit

The computer’s memory unit consists of RAM (Random Access Memory) and ROM (read Only Memory). The RAM first gets instructions which then passes to the processor which processes and sends back. The Random access memory is also called as Read/Write memory, which is the temporary memory of a computer. The ROM is a special memory which is read only memory, writing and erasing is not possible by user without specialised equipment.Read only memory can be manufacturer-programmed or user-programmed only.

Memory unit is the amount of data that can be stored in the storage unit. The data storage is in binary digits 0 & 1 (Passive and active state component of circuitry).

1 Bit  means 0 or 1

Group of 4 bits means 1 Nibble

Group of 8 Bits means 1 Byte

1024 Byte = 1 Kilobyte (KB)

1024 Kilobyte = 1 Megabyte (MB)

1024 Megabyte = 1 Gigabyte (GB)

1024 Gigabyte = 1 Terabyte (TB)

1024 Terabyte = 1 Petabyte (PB)

1024 Petabyte = 1 Exabyte (EB)

1024 Exabyte = 1 Zettabyte (ZB)

1024 Zettabyte = 1 Yottabyte (YB)

The document Elements of Computer - Computer Fundamentals, Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC is a part of the UPSC Course Famous Books for UPSC Exam (Summary & Tests).
All you need of UPSC at this link: UPSC

Related Searches

Semester Notes

,

shortcuts and tricks

,

Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC

,

Important questions

,

Summary

,

study material

,

past year papers

,

Exam

,

MCQs

,

Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC

,

Computer Awareness Notes | Study Famous Books for UPSC Exam (Summary & Tests) - UPSC

,

Elements of Computer - Computer Fundamentals

,

Elements of Computer - Computer Fundamentals

,

Objective type Questions

,

pdf

,

Previous Year Questions with Solutions

,

practice quizzes

,

Elements of Computer - Computer Fundamentals

,

Extra Questions

,

Viva Questions

,

Free

,

mock tests for examination

,

Sample Paper

,

ppt

,

video lectures

;