The document discusses computers, computer software, hardware, and their general operations. It defines a computer as an electronic device that manipulates data through input, storage, processing, and output. Computer software includes both application software like word processors and web browsers, as well as system software like operating systems. Computer hardware refers to the physical components like processors, memory, input devices like keyboards, and output devices like monitors. The general operations of a computer involve inputting data, processing and storing the data in memory, and then outputting the results.

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COMPUTER
• Computer is an electronic device that manupulates information
or data. It has the ability to store, retrieve and process data
• Computer is a programmable machine that receives input,
stores and manipulates data and provides output in a iseful
format
• Computer was used as an electronic device that allows inputting
data and having it stored,,processed or otherwise manipulated
quickly and efficiently
• A Computer System includes a computer , peripheral device
and software

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COMPUTER SOFTWARE
A set of instructions that enables physical components of a computer to work in a
synchronize way is known as Software
• This set of instructions is often called as program
• Computer cannot do any useful work without instruction from software
Examples
• MS word
• Excel and power point
• Spread sheet
Computer software als divided into two types
1. Application software
2. System software

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APPLICATION SYSTEM
 Enables the users to accomplish certain specific task. Following are the types
of application software
 WEB BROWSING SOFTWARE: It allows one to surf the Web
 WORD PROCESSING SOFTWARE: allow users to create, add a document
Examples
MS Word , Payroll system, invensory control
Manage students database
Spreadsheets and database Managements system etc

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SYSTEM SOFTWARE
 System software helps in running the computer hardware and the computer system
 The system software consist of the Operating system and all the utilities that enable the
computer to function
 System software actually controls the hardware
Examples Operating system
 Device drivers
 Utilities
 Language translator

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COMPUTER HARDWARE
The physical components of computer system which can be installed an operating
system and multitude of software to perform the operator’s designed functions
Hardware is the components that can be seen and touched
Hardware Components
Input devices
Input devices are things we use to put information into a computer
• Keyboard
• Mouse
• Joystick
• Scanner

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OUTPUT DEVICES
 Output devices are things we use to get information Out of computers
 Output devices: Output devices are used to supply processed data
Some output devices are
 Monitor
 Printers
 Speakers
 Processing devices

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ELEMENTS OF COMPUTER
 People:- They run operate the computer
 Procedure:- are commonly written in manuals of hardware and software manufacturers
 Software:- is to do process date into useful Information for people
 Hardware:- the physical equipment that you can feel and touch
 Data:- includes texts and numbers, sources, images and videos that you input into the
computer for processing
 Connectivity:- A computer must be connected to other computers especially through
the internet. Using the internet people can share and access data from all over the
world

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GENRAL
OPERATIONS
OF COMPUTER
Memory
Bank memory
Cash register
Handdisk
Memory
Central processing
unit (CPU)
Bank processor
Inputs
Mouse
Keyboard
Scanner
Output
Printer
Speakers
Pictures

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GENERAL OPERATIONS
PROGRAMS
PROCESS
STORAGE
OUTPUT
INPUT