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Simplifying SHA-1 Key Generation for Flutter Firebase: A Step-by-Step Guide If you're a Flutter developer looking to harness the power of Firebase in your project, you've likely encountered the need to generate a SHA-1 key. This key is pivotal for several Firebase services, including authentication and cloud messaging. However, generating the SHA-1 key can be a stumbling block for many developers. In this comprehensive guide, we aim to simplify the process, breaking down each step to help you generate your SHA-1 key with ease. The SHA-1 Key Challenge The process of generating a SHA-1 key can be challenging for Flutter developers, and common issues include: Selecting the Correct Keystore : The key generation process involves a keystore file. Using the wrong keystore can result in an incorrect SHA-1 key. It's essential to ensure that you're using the keystore associated with your app. Navigating to the Correct Directory : The key generation process requires you to open yo
Data and Information
Data and Information
What Is Data?
A collection of individual facts or statistics is referred to as data. Data is a
raw and unorganized so they must be processed to make it meaningful. The term
data can refer to either a single fact or a collection of facts. It is derived
from the Latin word datum, which means "something given.
Individual prices
weights
addresses
ages
names
temperatures
dates
distances
are examples
of data and data can come in the form of Text, observations, figures, images,
numbers, graphs, or symbols.
Data is a raw form of knowledge that has no meaning
or purpose on its own. In other words, data must be interpreted in order to have
meaning. Data can be simple—even ineffective—until it is analyzed, organized,
and interpreted.
Now let's see the characteristics of data.
Data usually Available
as row materials.
Reliability of data is low.
Data may Incomplete or informal and
data is Not suitable for decision making
Now we are going talk about types of
data There are two main types of data:
Quantitative data and Qualitative data
Quantitative data is provided in
numerical form, like the weight, volume, or cost of an item. For example, we can
take Revenue in dollars. Weight in grams. Age in years. Length in centimeters.
Distance in kilometers. Height in feet or inches. All of these are Quantitative
data because they are provided in numerical form.
Other data type is Qualitative
data is descriptive, but non-numerical, like the name, sex, or eye color of a
person. Things like Color Shape Smell Taste can put inside qualitative data.
For
example,
we can take the hair colors of players on a Cricket team,
the color of
cars in a parking lot
If a particular number is not assigned to the data, we can
say that is a qualitative data
So, as we discuss Data is an individual unit that
contains raw materials which do not carry any specific meaning or purpose on its
own. In other words, data must be interpreted in order to have meaning. We
talked about data
now it's time to know what is information What Is Information?
Knowledge gained through study, communication, research, or instruction is
referred to as information. In essence, information is the result of analyzing
and interpreting data. Whereas data refers to individual figures, numbers, or
graphs, information refers to how those pieces of knowledge are perceived.
For
example, a set of data could include temperature readings from a specific
location over the course of several years. Those temperatures have no meaning
without any additional context. However, by analyzing and organizing that data,
you may be able to determine seasonal temperature patterns or even broader
climate trends. Only when data is organized and compiled in a useful manner can
it provide useful information to others.
Information also has some
characteristics.
Subjectivity: The value and usefulness of information are highly
subjective, because what is information for one person may not be for another.
Relevance: Information is good only if it is relevant - that is, pertinent and
meaningful to the decision maker.
Timeliness: Information must be delivered at
the right time and the right place to the right person.
Accuracy: Information
must be free of errors, because erroneous information can result in poor
decisions and erode the confidence of users.
Correct information
format: Information must be in the right format to be useful to the decision
maker. Completeness: Information is said to be complete if the decision maker can
satisfactorily solve the problem at hand using that information.
Accessibility: Information is useless if it is not readily accessible to decision
makers, in the desired format, when it is needed.
So, as we discuss Information
is a set of data which is processed in a meaningful way according to the given
requirement.
let's understand
the differences between data and information
DATA
INFORMATION
unorganized
organized
Data points are individual and sometimes unrelated.
Information maps out that data to provide a big-picture view of how it all fits together.
Data is an individual unit that contains raw materials which do not carry any specific meaning.
Information is a group of data that collectively carries a logical meaning.
doesn’t depend on information.
depends on data.
data alone is insufficient for decision making
sufficient for decision making
Data is a collection of facts, while information puts those facts into context.
Data typically
comes in the form of graphs, numbers, figures, or statistics. Information is
typically presented through words, language, thoughts, and ideas.
In the world of computers, data is the input and Information is the output, or
how the computer interprets your data and shows you the requested action or
directive.
For better understanding let's see some examples.
So here are some
examples for data and information.
DATA
INFORMATION
Each student's test score is one piece of data.
The average score of a class or of the entire school is information that can be derived from the given data.
Each individual test grade of a student in one class
The student’s average grade for each class
0115156565
person’s phone number 0115156565
100, 212, 0, 32
The freezing and boiling points of water in Fahrenheit and Celsius
you can see this 10-digit number which does
not give you any idea, so that's a data. if we say that number is my mobile number
then we can take that as an information.
here also have set of numbers, which
has no meaning, so it's a data if we tell these numbers are the boiling points of
water in Fahrenheit and Celsius, it's an information
The history of temperature readings all
over the world for the past 100 years is data. If this data is organized and
analyzed to find that global temperature is rising, then that is information.
The number of visitors to a website by country is an example of data. Finding
out that traffic from the U.S. is increasing while that from Australia is
decreasing is meaningful information.
Data and information are both necessary for decision-making. Data is raw facts or statistics that may be meaningless on their own. However, information is data that has been processed and structured. Information is simple to understand and provides context for data. This is the primary distinction between data and information. Furthermore, information is always dependent on data.
Number representation Number representation is an essential aspect of computing, as computers work with numbers in various ways. There are several methods of representing numbers, each with its advantages and disadvantages. In this blog post, we will explore some of the most common number representation methods, including sign magnitude, complementation, and others, and explain them with examples. Sign-Magnitude Representation The sign-magnitude representation is a method used to represent signed numbers. In this method, the leftmost bit represents the sign of the number, with 0 representing a positive number and 1 representing a negative number. The remaining bits represent the magnitude or absolute value of the number. For example, in a 4-bit sign-magnitude representation, the number 6 would be represented as 0110, while -6 would be represented as 1110. One of the advantages of the sign-magnitude representation is that it is straightforward to implement and does not require any addit
Common Vulnerabilities and Threats: An Overview Introduction: In today's increasingly connected world, security is a critical concern for both individuals and organizations. The number of threats to computer systems and networks is increasing, and these threats can have a significant impact on the privacy, security, and reliability of information. To help protect against these threats, it is important to understand the most common vulnerabilities and threats. In this blog post, we will explore the most common vulnerabilities and threats, including spoofing, tampering, repudiation, information disclosure, denial of service, elevation of privilege, phishing, port scans, and others. Spoofing: Spoofing is the act of falsifying information in an attempt to trick a system or user into believing it is from a trusted source. Spoofing can take many forms, including IP address spoofing, email spoofing, and domain name spoofing. Threats posed by spoofing: Spoofing can be used to la
Types Of Computer Memory An essential component of the computer is its memory. An essential requirement for a computer is its capacity to remember, assess, and react correctly to user orders. Computer memory refers to any physical part that has the ability to store data either permanently, like ROM, or temporarily, like RAM. Don't think about RAM and ROM for now We will talk about them. Operating systems, software, and hardware all use memory devices that make use of integrated circuits. When we talk about computer memory devices, they can be classified into two categories. Types of memory Ok now think about the human brain, in the day to day life you connect with lots of things, but you don't remember everything you did after a few weeks so we can call it short-term memory, but some things you remember until you die we can say that is long term memory, Similar to the human brain, there are different types of memory storage available on the computer. With changing times and
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