Lesson 3: What is Computer? (TAGALOG Version)

Summary

This video provides an in-depth explanation of what a computer is and its primary characteristics. It covers the computer’s definition as a programmable electronic device capable of storing, processing, and retrieving data. The video also explains programming languages, basic computer operations (like arithmetic and logical tasks), and how computers use input, processing, output, and storage functions. Additionally, it explores different types of computers, such as desktops, laptops, tablets, smartphones, servers, and wearables, and emphasizes the computer's essential role in various fields like education, medicine, and banking.

Takeaways

• 💻 A computer is a programmable machine that processes data based on instructions or programs created by programmers.
• 🖥️ Computers can store, retrieve, and process data using electronic power, performing tasks like calculations and data manipulation.
• 🧑‍💻 Programming languages such as Java, C++, and C are used to communicate with computers and provide them with instructions.
• ⚡ Computers operate at high speeds and with accuracy, allowing for rapid task completion, such as printing multiple copies of a document.
• 📊 Computers perform basic operations like arithmetic (addition, subtraction) and logic (comparisons) to produce results based on input.
• 🗂️ Computers work on the input-process-output-storage cycle, handling data input, processing it, and delivering output or storing it as needed.
• 🔢 The binary system (0 and 1) is the foundational language of computers, where '0' represents off and '1' represents on.
• 🖱️ Different input devices like keyboards, mice, cameras, and microphones feed data into a computer for processing.
• 📱 Various types of computers include desktops, laptops, tablets, servers, smartphones, wearables, and game consoles.
• 🖥️ Computers, like PCs and Macs, come in different forms, with Macs using a graphical user interface (GUI) and Windows PCs being the most common.

Q & A

What is a computer?

A computer is a programmable machine that manipulates information or data and operates through the use of electricity. It can store, retrieve, and process data based on a list of instructions or programs provided by humans.

What are examples of programming languages used to instruct a computer?

Examples of programming languages used to instruct a computer include Java, C++, and C. These languages are used by programmers to create programs that communicate with the computer.

Why is a computer referred to as an 'electronic device'?

A computer is called an 'electronic device' because it functions through electricity to manipulate data and execute tasks as per human instruction.

What are some basic operations a computer can perform?

A computer can perform basic operations such as arithmetic (addition, subtraction, multiplication) and logical operations (comparisons). It can also process data and provide output based on the given instructions.

What is the input-process-output cycle of a computer?

The input-process-output cycle refers to the sequence in which a computer takes in data (input), processes the data into meaningful information (process), and either stores the result or sends it out as output (output). Storage can also be part of this cycle to keep the processed data for later use.

What are the three principal characteristics of a computer?

The three principal characteristics of a computer are: (1) It responds to a specific set of instructions in a well-defined manner, (2) It can execute a pre-recorded list of instructions repeatedly without fatigue, and (3) It can quickly store and retrieve large amounts of data.

What does the term 'binary system' refer to in computing?

The binary system in computing refers to the use of two variables, 0 (off) and 1 (on), which are the fundamental language of computers. This system is used to complete tasks such as storing data, performing calculations, and displaying information.

What is the significance of the word 'compute' in relation to computers?

The word 'compute' means 'to calculate,' and this is where the term 'computer' originated. Initially, computers were developed to assist with complex calculations and computations, especially for tasks like tabulating census data.

What are the different types of computers mentioned in the video?

The video mentions several types of computers, including desktop computers, laptops, servers, game consoles, wearables, tablets, smartphones, and TVs. Each type serves a specific purpose and comes in different sizes and forms.

How does a smartphone compare to other types of computers?

A smartphone is a small, handheld version of a computer that can perform many tasks similar to a tablet or desktop, such as browsing the internet and playing games. It is more portable and has more functions than basic phones, making it a versatile computing device.