Computer Fundamentals

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What is COMPUTER ?
The term "Computer" is derived from a Latin word “computare” which means to “to calculate” , “to count” , “to sum up” or “to think together”. So, more precisely the word computer means a "device that performs computation".

COMPUTER stands for Common Operating Machine Purposely Used for Technological and Educational Research.

OR

C = Common
O = Operating
M = Machine
P = Purposely
U = Used for
T = Technological and
E = Educational
R = Research

A computer is a fast electronic device that processes the input data according to the instructions given by the programmer/user and provides the desired information as output.

Computer is the combination of Hardware and Software which convert data into information.

Use a computer to type documents, send email, browse the internet, handle spreadsheets, accounting, database management, presentations, games etc.

 

Function of Computer : 
Computer is responsible for performing four basic function :
Input : Information or data that is entered into a computer is called input. It sends data and instructions to the Central Processing Unit (CPU).
Processing : It is the sequence of actions taken on data to convert it into information which is meaningful to the user. It can be calculations, comparisons or decisions taken by the computer.
Output : It makes processed data available to the user.
Storage : It stores data and programs permanently.

Terms and Meaning
Hardware : Hardware is the collection of physical elements that constitute a computer system. It is a comprehensive term for all the physical parts of a computer. e.g., display screens, disks, keyboards. mouse, printers, scanner, chips, etc.
Software : It is a set of programs and procedures. Software tells the hardware what to do and how to accomplish a task. e.g., web browsers, word processors, etc.
Data : Unprocessed raw facts and figures, like numbers, text on pieces of paper, are known as data
Information : Data which has some meaning or value, then it is called information.
Instruction : It is a command given to a computer in the computer language by the user, then it is called instruction.
Program : It is a set of instructions given to a computer in order to perform some task.
Process : Manipulation of data.

Question

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Question 1 :

Computer is the combination of

1. Hardware, Software and Program
2. Hardware and Software
3. Keyboard, Mouse, Monitor
4. All of these
Answer
3

Question 2 :

What does the COMPUTER stand for?

1. Commonly Operated Machines Used in Technical and Educational Research
2. Commonly Occupied Machines Used in Technical and Educational Research
3. Commonly Operated Machines Used in Technical and Environmental Research
4. Commonly Oriented Machines Used in Technical and Educational Research
Answer
5