Encryption is important because it allows you to securely protect data that you don't want anyone else to have access to. Espionage uses encryption to securely protect folder contents, which could contain emails, chat histories, tax information, credit card numbers, or any other sensitive information.
What is encryption of data?
The translation of data into a secret code. Encryption is the most effective way to achieve data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Unencrypted data is called plain text ; encrypted data is referred to as cipher text.
What is encryption and what is it used for?
Encryption refers to any process used to make sensitive data more secure and less likely to be intercepted by those unauthorized to view it. There are several modern types of encryption used to protect sensitive electronic data, such as emails, files, folders and entire drives.
The Importance of having Firewalls! Firewall is a software or hardware device that protects your computer from being attacked over the internet by hackers, viruses, and worms. This may occur either at a large corporate network, or simply at a small home network; both have the same security issues.
Firewalls can be implemented as both hardware and software, or a combination of both. Network firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets.
A firewall is a system designed to prevent unauthorised access to or from a private computer network. Firewalls are frequently used to prevent unauthorised Internet users from accessing private networks connected to the Internet (often described as intranets).
For home use, firewalls work much more simply. The main goal of a personal firewall is to protect your personal computer and private network from malicious mischief. Malware, malicious software, is the primary threat to your home computer. Viruses are often the first type of malware that comes to mind.
Firewalls inspect data transmitted between a computer and external recipients to prevent unsolicited data exchanges. There is no way to track your smartphone once it is lost. A thief must physically steal your computer to gain access to its files and data.
A virus signature is also called a virus definition. A virus signature is a specific pattern of virus code. In other words, it is a pattern that uniquely identifies a specific virus. It is just like a fingerprint of a virus by which it can be specifically detected.
An embedded computer can automate security so you can lock and unlock doors remotely. An embedded computer can remotely turn on an antique fan found in your grandmother's attic. An embedded computer can reduce energy consumption in home appliances.
Embedded systems are designed to do some specific task, rather than be a general-purpose computer for multiple tasks. Embedded systems are not always standalone devices. Many embedded systems consist of small parts within a larger device that serves a more general purpose.
An embedded system is any electronic system that uses a CPU chip, but that is not a general-purpose workstation, desktop or laptop computer. An embedded system is a special-purpose computer system designed to perform a dedicated function.
- Keyboard. Keyboard is the most common and very popular input device which helps to input data to the computer.
- Mouse. Mouse is the most popular pointing device.
- Joystick. Joystick is also a pointing device, which is used to move the cursor position on a monitor screen.
- Light Pen.
- Track Ball.
- Image scanner.
- Pointing device. Graphics tablet. Joystick. Light pen. Mouse. Optical. Pointing stick. Touchpad. Touchscreen. Trackball.
- Webcam. Softcam.
- Refreshable braille display.
Input can take a variety of forms, from commands you enter from the keyboard to data from another computer or device. A device that feeds data into a computer, such as a keyboard or mouse, is called an input device. (v.)The act of entering data into a computer.
Input. Whenever you enter data into your computer, it is referred to as input. This can be text typed in a word processing document, keywords entered in a search engine's search box, or data entered into a spreadsheet. Devices such as the keyboard, mouse, scanner, and even a digital camera are considered input devices.
Input Device Defined. An input device for 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.
Types of input devices
- Audio conversion device.
- Barcode reader.
- Biometrics (e.g., fingerprint scanner)
- Business Card Reader.
- Digital camera and Digital Camcorder.
- Electroencephalography (EEG)
- Finger (with touchscreen or Windows Touch)
- Gamepad, Joystick, Paddle, Steering wheel, and Microsoft Kinect.
An output device is any device used to send data from a computer to another device or user. Most computer data output that is meant for humans is in the form of audio or video. Thus, most output devices used by humans are in these categories. Examples include monitors, projectors, speakers, headphones and printers.
Any information that has been processed by and sent out from a computer or similar device is considered output. A simple example of output is anything you view on your computer monitor. The bottom half of the image to the right shows data being sent from a computer to a printer, which is considered output.
Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data. The central processing unit (CPU) of a computer is what manipulates data by performing computations.
Encryption. In cryptography, encryption is the process of encoding a message or information in such a way that only authorized parties can access it and those who are not authorized cannot. Encryption does not itself prevent interference, but denies the intelligible content to a would-be interceptor.
A: A smart phone is encrypted when the data stored on it is encoded. The most common encryption standard for phones is AES, or Advanced Encryption Standard. The key to lock and unlock encrypted phones is typically the passcode necessary to unlock the phone on its home-screen.