Explanation

Charles Babbage is known as the Father of the Computer.

He was an inventor from the UK.

He was born in 1791.

He was died in 1871.

Explanation

Following are the functions of a operating system.

1. Allocates resources
2. Monitor Activities
3. Manages disks and files

Explanation

A firewall is a security system that monitors and controls incoming and outgoing network traffic.

Its primary function is to prevent unauthorized access to or from a private network by filtering data based on security rules.

Explanation

Explanation

• Spam is another name for junk Email
• junk email refers to unsolicited email messages, usually sent in bulk to a large list of recipients.
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Computer important Information:

• E-mail stands for: Electronic Mail
• Father of E-mail: Ray Tomlinson

• First E-mail sent: 1971

• @ is used to divide an email into: two parts

• SMTP helps to send: E-mails

• SMTP stands for: Simple Mail Transfer Protocol

• Received email is saved: inbox

• Sent email is saved in: sent box

• Maximum attachment size in Yahoo Email: 25 MB

• G-mail stands: Google Mail

• Email spam also called: junk email

• To close email account click: sign out

• To create new E-mail: Sign Up

• Email hacking means: Illegal access to open email accounts of others

• Junk email is also called: Spam 

•  At sign (@): always a part of email address

• Sending an E-mail is similar to: writing a letter

• A allows us to access our e-mail from anywhere: Webmail interface 

• Bookmark:  is associated with Internet E-mail

Explanation

Firewalls provide protection against outside cyber attackers by shielding your computer or network from malicious or unnecessary network traffic.

Firewalls can also prevent malicious software from accessing a computer or network via the internet.

Explanation

ROM (Read-Only Memory)

• Stores non-modifiable data and instructions permanently.
• Non-volatile memory used for essential computer instructions.

RAM (Random Access Memory)

• Volatile memory used for temporary data storage.
• Supports active processes and operations on a computer.

Explanation

A browser, such as Chrome or Firefox.

It is a software application used to access and display websites on the internet.

A web browser is application software for accessing the World Wide Web or a local website.

Explanation

The main electronic component used in first-generation counterparts was Vacuum Tubes and Valves

Leo is called the first-generation computer

First-generation (1940 - 1956)  vacuum tubes as a major piece of technology. 

The ENIAC is an example of 1st generation computer.

The time span of first-generation electronic computers was 1943 to 1959

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Second generation (1956 - 1963) use of transistors.

Third generation (1964 - 1971)  use of Integrated circuits.

Fourth generation (1972 - 2010) use of the microprocessor

The fifth generation (2010 to present) use Artificial intelligence

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ND7-5-2023

Explanation

• Attenuation refers to the decrease in strength or intensity of a signal as it travels through a medium or is processed by a system.
• This can occur due to various factors such as resistance, impedance, or absorption, and can affect the quality and fidelity of the signal.