What is the purpose of a firewall in a computer network? [#1485]

A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.

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A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.

Computers fundamentally understand machine language, which is composed of binary code (sequences of 0s and 1s). Every instruction and piece of data that a computer processes must ultimately be converted into this binary format. While programmers write in high-level languages (like Python or Java) or even assembly language, these languages must be translated (compiled or interpreted) into machine language before the computer's Central Processing Unit (CPU) can execute them. Natural languages are too complex and ambiguous for direct computer understanding without sophisticated artificial intelligence processing.

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Computers fundamentally understand machine language, which is composed of binary code (sequences of 0s and 1s). Every instruction and piece of data that a computer processes must ultimately be converted into this binary format. While programmers write in high-level languages (like Python or Java) or even assembly language, these languages must be translated (compiled or interpreted) into machine language before the computer's Central Processing Unit (CPU) can execute them. Natural languages are too complex and ambiguous for direct computer understanding without sophisticated artificial intelligence processing.

A byte is the smallest unit of data storage in a computer. It consists of 8 bits. Bits are the individual units of data (either 0 or 1) that make up a byte.

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A byte is the smallest unit of data storage in a computer. It consists of 8 bits. Bits are the individual units of data (either 0 or 1) that make up a byte.

RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).

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RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).

The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.

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The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.

The Hindu Dharma Sangrakshini Sabha was founded in 1893 by the Chapekar brothers, Damodar Hari Chapekar and Balkrishna Hari Chapekar. This organization aimed to protect and promote Hindu religious traditions and address social and political issues of the time from a Hindu perspective.

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The Hindu Dharma Sangrakshini Sabha was founded in 1893 by the Chapekar brothers, Damodar Hari Chapekar and Balkrishna Hari Chapekar. This organization aimed to protect and promote Hindu religious traditions and address social and political issues of the time from a Hindu perspective.

The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.

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The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.

The Central Processing Unit (CPU) is widely known as the "brain" of the computer because it is responsible for executing instructions, performing arithmetic and logical operations, and controlling the overall flow of data and instructions within the computer system. It processes all the instructions from the software and hardware and manages the basic operations of the computer.

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The Central Processing Unit (CPU) is widely known as the "brain" of the computer because it is responsible for executing instructions, performing arithmetic and logical operations, and controlling the overall flow of data and instructions within the computer system. It processes all the instructions from the software and hardware and manages the basic operations of the computer.

Charles Babbage was an English mathematician, philosopher, inventor, and mechanical engineer who designed the Difference Engine and, more importantly, the Analytical Engine. The Analytical Engine is considered the conceptual forerunner of the modern digital computer, incorporating features like an Arithmetic Logic Unit (ALU), basic flow control, and integrated memory, which are fundamental to today's computers. Although it was never fully built in his lifetime, his detailed designs and theoretical work laid the foundational principles for future computer development.

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Charles Babbage was an English mathematician, philosopher, inventor, and mechanical engineer who designed the Difference Engine and, more importantly, the Analytical Engine. The Analytical Engine is considered the conceptual forerunner of the modern digital computer, incorporating features like an Arithmetic Logic Unit (ALU), basic flow control, and integrated memory, which are fundamental to today's computers. Although it was never fully built in his lifetime, his detailed designs and theoretical work laid the foundational principles for future computer development.

The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.

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The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.

Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.

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Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.