HOW TO INCREASE MOBILE BATTERY LIFE

In this modern era we can see lots of mobile phone in the market phone having great camera, processor, battery, RAM, display, design, etc but we don't have a phone having everything also we don't have a budget to buy a best phone but we can choose a better phone for us on the basis of our daily life and uses which is a better phone.

But after sometime this big problem happens that is reducing battery life of our phone and we don't understand why our battery life gone so let me

OPERATING SYSTEM PROPERTIES MULTIPROGRAMMING

OPERATING SYSTEM PROPERTIES ???-\ EXPLAIN MULTIPROGRAMMING????
When two or more programs are residing in memory at the same time, then sharing the processor is referred to the multiprogramming. Multiprogramming assumes a single shared processor. Multiprogramming increases CPU utilization by organizing jobs so that the CPU always has one to execute.

Operating system does the following activities related to multiprogramming.
‪#‎The‬ operating system keeps several jobs in memory at a time.

explain CAPTCHA

CAPTCHA: Telling Humans and Computers Apart Automatically A CAPTCHA is a program that protects websites and other online service against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text, but current computer programs can't. The term CAPTCHA (for Completely Automated Public Turing Test To Tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel

EXPLAIN INTERACTIVITY OPERATING SYSTEM

EXPLAIN INTERACTIVITY????
Interactivity refers that a User is capable to interact with computer system. Operating system does the following activities related to interactivity.
‪#‎OS‬ provides user an interface to interact with system. 
#OS managers input devices to take inputs from the user. For example, keyboard. 
#OS manages output devices to show outputs to the user. For example, Monitor. 
#OS Response time needs to be short since the user submits and waits for the result.

Fundamental of computer Explain

Input-Aninput devicefor a computer allows you to enter information. The most fundamental pieces of information are keystrokes on a keyboard and clicks with a mouse. These two input devices are essential for you to interact with your computer. Many other input devices exist for entering other types of information, such as images, audio and video. Input devices represent one type of computer peripheral - the other two types are output devices and storage