Podcast
Questions and Answers
What is the appropriate action if someone suspects illegal activities such as pedophilia?
What is the appropriate action if someone suspects illegal activities such as pedophilia?
What does the Anti-Photo and Video Voyeurism Act of 2009 prohibit?
What does the Anti-Photo and Video Voyeurism Act of 2009 prohibit?
Which of the following is considered illegal under the Anti-Photo and Video Voyeurism Act?
Which of the following is considered illegal under the Anti-Photo and Video Voyeurism Act?
What should not be done regarding suspected illegal activities?
What should not be done regarding suspected illegal activities?
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Which of these acts is NOT permitted under the Anti-Photo and Video Voyeurism Act?
Which of these acts is NOT permitted under the Anti-Photo and Video Voyeurism Act?
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What type of software is generally designed and built for specific tasks?
What type of software is generally designed and built for specific tasks?
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Which statement correctly describes the programming complexity comparison between system and application software?
Which statement correctly describes the programming complexity comparison between system and application software?
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Which of the following is an example of system software?
Which of the following is an example of system software?
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What method is used to close the current window in a software application?
What method is used to close the current window in a software application?
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Which type of software interacts directly with the hardware?
Which type of software interacts directly with the hardware?
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Which key combination is used to switch between open windows?
Which key combination is used to switch between open windows?
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Which statement is true regarding the installation of system software versus application software?
Which statement is true regarding the installation of system software versus application software?
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What does the shortcut Ctrl + Y do in a software application?
What does the shortcut Ctrl + Y do in a software application?
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What was one of the main reasons for the development of ARPANET in the 1960s?
What was one of the main reasons for the development of ARPANET in the 1960s?
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What significant change occurred with the adoption of TCP/IP on January 1, 1983?
What significant change occurred with the adoption of TCP/IP on January 1, 1983?
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Which two individuals are known as the fathers of the Internet?
Which two individuals are known as the fathers of the Internet?
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When did the general public first gain access to the Internet?
When did the general public first gain access to the Internet?
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What significant development happened in 1993 that impacted the Internet?
What significant development happened in 1993 that impacted the Internet?
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What sparked the U.S. Defense Department's interest in developing ARPANET?
What sparked the U.S. Defense Department's interest in developing ARPANET?
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In which year was the World Wide Web (WWW) developed?
In which year was the World Wide Web (WWW) developed?
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Which of the following was NOT one of the first online services introduced in 1994?
Which of the following was NOT one of the first online services introduced in 1994?
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What is the primary function of a web server?
What is the primary function of a web server?
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Which type of server is responsible for managing email communications?
Which type of server is responsible for managing email communications?
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What role does the Domain Name System (DNS) serve in the internet?
What role does the Domain Name System (DNS) serve in the internet?
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Which type of Internet Service Provider (ISP) covers a specific geographic area?
Which type of Internet Service Provider (ISP) covers a specific geographic area?
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What does an IP address provide to a network device?
What does an IP address provide to a network device?
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Which of the following is NOT a use of the internet?
Which of the following is NOT a use of the internet?
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What is the purpose of a policy server in a network?
What is the purpose of a policy server in a network?
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Which of the following is an example of a regional ISP?
Which of the following is an example of a regional ISP?
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What is a key characteristic of dot matrix printers?
What is a key characteristic of dot matrix printers?
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Which type of printer produces low-quality outputs?
Which type of printer produces low-quality outputs?
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What is a disadvantage of daisy wheel printers compared to dot matrix printers?
What is a disadvantage of daisy wheel printers compared to dot matrix printers?
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What distinguishes RAM from ROM?
What distinguishes RAM from ROM?
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Which type of printer is capable of printing high-quality images on large paper?
Which type of printer is capable of printing high-quality images on large paper?
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What is a characteristic of laser printers?
What is a characteristic of laser printers?
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Which printer type is characterized by being automatically silent?
Which printer type is characterized by being automatically silent?
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What function does RAM primarily serve in a computer?
What function does RAM primarily serve in a computer?
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Study Notes
Types of Software
- System software is a general-purpose software that provides the foundation for other applications.
- Application software is a specific software designed for a particular task.
- System software uses low-level languages, making programming complex.
- Application software uses high-level languages, making programming simpler.
- System software interacts directly with the hardware.
- Application software does not interact with the hardware.
- System software is installed by manufacturers.
- Application software is installed by users.
- System software works in the background.
- Application software works in the foreground.
- System software examples include operating systems, programming languages, and communication software.
- Application software examples include word processing, spreadsheets, databases, and web browsers.
Keyboard Shortcuts
- Alt + E: Edits options in the current program.
- Alt + Tab: Switches between open windows.
- Alt + F: Shows file menu options in the current program.
- Ctrl + Y: Redoes the last action.
- Ctrl + K: Inserts a hyperlink for the selected text.
- Windows key + L: Locks the computer, requiring a password to access again.
- Alt + F4: Closes the current window.
- Windows key + X: Accesses the Power User Tasks Menu.
- Alt + Page Up: Scrolls up the entire screen.
- Windows key + Down arrow: Minimizes the active program window.
Internet
- The Internet, also known as the 'net,' is the largest computer network in the world, connecting billions of computer users.
- The word "internet" comes from "interconnection" and "network."
- A network is a collection of devices connected through communication channels, enabling resource sharing.
Brief History of the Internet
- The Internet began in the 1960s as a way for government researchers to share information.
- The Cold War fueled the Internet's development.
- The Soviet Union's launch of Sputnik inspired the US Defense Department to find ways to transmit information even after a nuclear attack.
- This led to the creation of ARPANET (Advanced Research Projects Agency Network), the network that evolved into the Internet.
- ARPANET was initially limited to academic and research organizations with contracts with the Defense Department.
- In the 1970s, TCP/IP (Transfer Control Protocol/Internet Protocol) was established.
- TCP/IP allowed different computer types and networks to communicate.
- It became the standard protocol for ARPANET on January 1, 1983, marking the official birth of the Internet.
- Vinton Gray Cerf and Bob Kahn, often called the "fathers of the Internet," designed the TCP/IP protocol suite.
- The internet became accessible to the public in 1986.
- The World Wide Web (WWW) developed in 1991, accelerating the Internet's growth.
- The first graphical web browser software was released in 1993.
- The first online shopping mall, internet radio station, and cyber bank appeared in 1994.
- The Internet continued to grow, offering advanced and developed services.
Major Components of the Internet
-
Server: A computer program providing services to other programs and users.
- Application Server: Provides business logic for applications.
- Web Server: Serves requested web pages and files.
- Proxy Server: Acts as an intermediary between devices and servers.
- Mail Server: Handles incoming and outgoing emails.
- File Server: Manages storage and access to data files on a network.
- Policy Server: Provides security and authorization services.
- IP Address: A unique numerical label assigned to each device on a network.
-
Browser: An application program for accessing information on the web.
- Examples: Google Chrome, Safari, Internet Explorer.
-
Domain Name System (DNS): Acts as the "phonebook" of the internet; allowing users to access information using domain names.
- Example: www.facebook.com.
-
Internet Service Provider (ISP): An organization that provides internet access and services.
- National ISP: Offers access within a specific geographic area.
- Regional ISP: Provides access within cities and towns nationwide.
- Examples: Sky Broadband, PTLT, Converge.
Uses of the Internet
- Information retrieval
- School work, jobs, and home purposes
- Email correspondence
- Video teleconferencing (video calls, video chats)
- E-commerce (buying and selling products)
- Social networking
- Video sharing and posting
- Online gaming
- Online education
- Home security monitoring
- Financial transactions
- Downloading music and movies
Important Terms & Definitions
- Internet: A global network connecting thousands of computer networks through data lines and wireless systems.
Types of Printers
-
Dot Matrix Printers:
- Produce low-quality output.
- Noisy due to pins striking the paper.
- Faster than Daisy Wheel printers.
- Support multiple fonts and styles.
- Affordable.
-
Daisy Wheel Printers:
- Produce high-quality output.
- Silent or quieter.
- Slower than Dot Matrix printers.
- Limited to the characters on the wheel.
- Supports only English characters.
- Expensive.
-
Line Printers: Print only one line at a time.
- Drum Printer: Drum-like shape with track divisions equal to paper size.
- Chain Printer: Uses a character chain to print, typically with 48, 64, or 96 characters.
-
Non-Impact Printers:
- Don’t use a ribbon to print.
- Print an entire page at once.
- Laser Printers: Produce high-quality output using dots to form characters. Can’t print multiple copies at once.
- Inkjet Printers: Utilize spray technology for printing. Produce high-quality characters with detail.
-
Plotter Printers: Specialize in drawing high-quality images on large paper sizes (e.g., 3 ft. wide by 10 ft. long).
- Flatbed Plotters: Hold the paper still while pens move.
- Drum Plotters: Roll paper over a cylinder.
- Pinch-Roller Plotters: Combine elements of flatbed and drum plotters.
RAM (Random Access Memory)
- Provides temporary storage for the operating system and software in use.
- Allows quick access to the processor.
- Volatile, meaning data is lost when power is off.
ROM (Read-Only Memory)
- Also known as firmware.
- An integrated circuit programmed with data during manufacturing.
- Provides permanent storage.
- Non-volatile, meaning data is retained even when power is off.
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Description
Test your knowledge on the differences between system software and application software. Learn how each type of software functions, their interactions with hardware, and the examples associated with them. This quiz will challenge your understanding of their characteristics and usage.
