1. What is a computer?
A computer is an electronic device that processes data, performing tasks according to programmed instructions.
2. What are the main components of a computer?
The main components are hardware (physical parts) and software (programs or applications).
3. What is hardware in a computer?
Hardware refers to the physical parts of a computer, like the monitor, keyboard, and motherboard.
4. What is software in a computer?
Software is a set of instructions that tells the computer how to perform tasks. Examples include operating systems and applications.
5. What is an operating system (OS)?
An operating system is software that manages computer hardware and software resources, like Windows, macOS, or Linux.
6. What is the function of the CPU?
The CPU (Central Processing Unit) is the brain of the computer, executing instructions from programs.
7. What is RAM in a computer?
RAM (Random Access Memory) is temporary memory used to store data that is being processed.
8. What is ROM in a computer?
ROM (Read-Only Memory) stores critical boot instructions and is non-volatile, meaning it retains data even when powered off.
9. What is the difference between RAM and ROM?
RAM is temporary and volatile, while ROM is permanent and non-volatile memory.
10. What is a motherboard?
The motherboard is the main circuit board that connects all components of the computer, like the CPU, RAM, and storage devices.
11. What are input devices?
Input devices are hardware used to provide data to the computer, such as keyboards, mice, and scanners.
12. What are output devices?
Output devices are hardware that receive data from the computer, such as monitors and printers.
13. What is a hard drive?
A hard drive is a storage device used to store data permanently.
14. What is the difference between SSD and HDD?
SSDs (Solid-State Drives) are faster and more durable than HDDs (Hard Disk Drives), which use mechanical parts to read/write data.
15. What is a computer network?
A computer network is a group of interconnected computers that can share data and resources.
16. What is the Internet?
The Internet is a global network of interconnected computers, allowing users to share information and communicate.
17. What is a browser?
A browser is software used to access and view websites, such as Google Chrome or Firefox.
18. What is cloud computing?
Cloud computing is the delivery of computing services over the internet, allowing users to access data and applications remotely.
19. What is an IP address?
An IP address is a unique numerical label assigned to each device connected to a network.
20. What is a firewall?
A firewall is a security system that monitors and controls incoming and outgoing network traffic.
21. What is the function of an antivirus?
Antivirus software protects computers from malware, viruses, and other security threats.
22. What is multitasking in computers?
Multitasking is the ability of a computer to run multiple programs simultaneously.
23. What is virtual memory?
Virtual memory is a technique that uses hard disk space as additional RAM when the physical RAM is full.
24. What is a byte?
A byte is a unit of data, typically 8 bits, representing a single character in the computer.
25. What are bits?
Bits (binary digits) are the smallest units of data in a computer, representing 0s and 1s.
26. What is the difference between kilobyte and megabyte?
1 kilobyte (KB) is 1,024 bytes, while 1 megabyte (MB) is 1,024 kilobytes.
27. What is the function of a GPU?
A GPU (Graphics Processing Unit) handles rendering images and video, especially in gaming and graphic design.
28. What is a peripheral device?
Peripheral devices are external devices connected to the computer, such as printers, scanners, and external drives.
29. What is open-source software?
Open-source software is software whose source code is publicly available for modification and distribution.
30. What is proprietary software?
Proprietary software is owned by a company and its source code is not made publicly available.
31. What is a server?
A server is a computer that provides data or services to other computers in a network.
32. What is a client in a network?
A client is a computer that requests services or resources from a server.
33. What is encryption?
Encryption is the process of converting data into a secure code to prevent unauthorized access.
34. What is a URL?
A URL (Uniform Resource Locator) is the address used to access websites and resources on the internet.
35. What is a database?
A database is an organized collection of data, stored electronically for easy access and management.
36. What is an algorithm?
An algorithm is a step-by-step procedure used to solve a problem or perform a task in computing.
37. What is machine learning?
Machine learning is a type of artificial intelligence that allows computers to learn from data without being explicitly programmed.
38. What is artificial intelligence (AI)?
AI is the simulation of human intelligence in computers, enabling them to perform tasks like decision-making and problem-solving.
39. What is a compiler?
A compiler translates high-level programming code into machine code that can be executed by a computer.
40. What is a file system?
A file system organizes and manages how data is stored and retrieved on storage devices.
41. What is a pixel?
A pixel is the smallest unit of a digital image, typically displayed on a screen.
42. What is the binary system in computing?
The binary system uses two symbols, 0 and 1, to represent data in computers.
43. What is the difference between hardware and software?
Hardware refers to the physical parts of a computer, while software refers to the programs and data.
44. What is a protocol in networking?
A protocol is a set of rules that govern data communication between devices in a network.
45. What is a LAN?
A LAN (Local Area Network) is a network of computers in a limited area, like an office or building.
46. What is a WAN?
A WAN (Wide Area Network) is a network that covers a large geographic area, such as the internet.
47. What is DNS?
DNS (Domain Name System) translates domain names into IP addresses to access websites.
48. What is HTTP?
HTTP (Hypertext Transfer Protocol) is the protocol used to transfer web pages over the internet.
49. What is HTTPS?
HTTPS is a secure version of HTTP, encrypting data transferred between the browser and server.
50. What is a cookie in computing?
A cookie is a small file stored on a user's computer by a website to track user activity.
51. What is malware?
Malware is malicious software designed to harm or exploit computers.
52. What is a Trojan horse in computing?
A Trojan horse is malware disguised as legitimate software, tricking users into installing it.
53. What is phishing?
Phishing is a cyberattack where hackers try to obtain sensitive information by impersonating legitimate entities.
54. What is a VPN?
A VPN (Virtual Private Network) encrypts your internet connection to provide privacy and security online.
55. What is a backup?
A backup is a copy of data stored separately to prevent data loss in case of failure.
57. What is an email client?
An email client is software that allows users to send, receive, and manage emails, like Outlook.
58. What is cybercrime?
Cybercrime is illegal activities conducted over the internet, like hacking and identity theft.
59. What is a virus in computing?
A virus is a type of malware that can replicate itself and spread to other files or programs.
60. What is data encryption?
Data encryption is the process of converting data into a code to prevent unauthorized access.
61. What is a database management system (DBMS)?
A DBMS is software that manages and organizes databases, allowing users to create, retrieve, update, and delete data.
62. What is the difference between data and information?
Data is raw, unprocessed facts, while information is data that has been processed to be meaningful.
63. What is an API?
An API (Application Programming Interface) allows different software applications to communicate and share data.
64. What is cache memory?
Cache memory is high-speed storage located close to the CPU, used to store frequently accessed data for quick retrieval.
65. What is a spreadsheet?
A spreadsheet is a software application (like Microsoft Excel) used for organizing, analyzing, and storing data in tables.
66. What is virtualization in computing?
Virtualization is the process of creating a virtual version of something, like virtual hardware platforms, storage devices, or networks.
67. What is cybersecurity?
Cybersecurity is the practice of protecting computers, networks, and data from unauthorized access and cyberattacks.
68. What is the function of a router?
A router directs data traffic between different networks, such as the internet and local networks.
69. What is a computer virus?
A computer virus is a type of malware that spreads by attaching itself to other programs and files.
70. What is system software?
System software manages the hardware and provides services for other software. Examples include operating systems and utilities.
71. What is application software?
Application software is designed to perform specific tasks, such as word processing, web browsing, or photo editing.
72. What is the function of a modem?
A modem converts digital data into signals that can be transmitted over phone lines or other mediums.
73. What is open-source software?
Open-source software is software that allows anyone to view, modify, and distribute its code.
74. What is proprietary software?
Proprietary software is owned by a company or individual and does not allow users to access or modify its source code.
75. What is the command line?
The command line is a text-based interface used to interact with the computer by typing commands.
76. What is the difference between the command line and GUI?
The command line is text-based, while a GUI (Graphical User Interface) uses visual elements like icons and buttons for interaction.
77. What is a device driver?
A device driver is software that allows the operating system to communicate with hardware devices.
78. What is firmware?
Firmware is software embedded in hardware devices, controlling their basic functions.
79. What is a QR code?
A QR code is a two-dimensional barcode that can store information and be scanned by devices like smartphones.
80. What is Bluetooth?
Bluetooth is a wireless technology that allows devices to communicate and transfer data over short distances.
81. What is Wi-Fi?
Wi-Fi is a wireless technology that allows devices to connect to the internet and communicate within a local area network.
82. What is Ethernet?
Ethernet is a wired network technology used to connect devices in a local area network (LAN).
83. What is a phishing attack?
A phishing attack is a cybercrime where attackers trick individuals into providing sensitive information, often through fraudulent emails.
84. What is a hyperlink?
A hyperlink is a link in a document or webpage that redirects to another webpage or resource when clicked.
85. What is 2FA (Two-Factor Authentication)?
2FA adds an extra layer of security by requiring two forms of identification, such as a password and a code sent to your phone.
86. What is a CAPTCHA?
A CAPTCHA is a test used to distinguish between humans and bots, often by identifying objects in images.
87. What is cloud storage?
Cloud storage allows users to store data online on remote servers rather than on local devices.
88. What is a VPN (Virtual Private Network)?
A VPN provides a secure connection to another network over the internet, protecting data and privacy.
89. What is a web server?
A web server hosts websites and delivers web pages to users through their browsers.
90. What is a database query?
A database query is a request to retrieve specific data from a database.
91. What is an algorithm?
An algorithm is a series of steps or rules used to solve a problem or perform a task.
92. What is big data?
Big data refers to extremely large data sets that can be analyzed to reveal patterns, trends, and associations.
93. What is artificial intelligence?
Artificial intelligence (AI) refers to the simulation of human intelligence in machines that can perform tasks like problem-solving and decision-making.
94. What is a chatbot?
A chatbot is a software program designed to simulate conversation with users, often used in customer service or information retrieval.
95. What is virtual reality (VR)?
Virtual reality is a technology that immerses users in a simulated 3D environment using special devices like VR headsets.
96. What is augmented reality (AR)?
Augmented reality overlays digital information onto the real world, often through smartphones or AR glasses.
97. What is a kernel in operating systems?
A kernel is the core part of an operating system, managing hardware resources and system operations.
98. What is a peer-to-peer network?
A peer-to-peer (P2P) network allows computers to connect and share resources directly without a central server.
99. What is a virtual machine (VM)?
A virtual machine is a software-based emulation of a physical computer, allowing you to run multiple operating systems on one device.
100. What is blockchain technology?
Blockchain is a decentralized digital ledger technology used to securely record transactions across multiple computers in a network.
A computer is an electronic device that processes data, performing tasks according to programmed instructions.
2. What are the main components of a computer?
The main components are hardware (physical parts) and software (programs or applications).
3. What is hardware in a computer?
Hardware refers to the physical parts of a computer, like the monitor, keyboard, and motherboard.
4. What is software in a computer?
Software is a set of instructions that tells the computer how to perform tasks. Examples include operating systems and applications.
5. What is an operating system (OS)?
An operating system is software that manages computer hardware and software resources, like Windows, macOS, or Linux.
6. What is the function of the CPU?
The CPU (Central Processing Unit) is the brain of the computer, executing instructions from programs.
7. What is RAM in a computer?
RAM (Random Access Memory) is temporary memory used to store data that is being processed.
8. What is ROM in a computer?
ROM (Read-Only Memory) stores critical boot instructions and is non-volatile, meaning it retains data even when powered off.
9. What is the difference between RAM and ROM?
RAM is temporary and volatile, while ROM is permanent and non-volatile memory.
10. What is a motherboard?
The motherboard is the main circuit board that connects all components of the computer, like the CPU, RAM, and storage devices.
11. What are input devices?
Input devices are hardware used to provide data to the computer, such as keyboards, mice, and scanners.
12. What are output devices?
Output devices are hardware that receive data from the computer, such as monitors and printers.
13. What is a hard drive?
A hard drive is a storage device used to store data permanently.
14. What is the difference between SSD and HDD?
SSDs (Solid-State Drives) are faster and more durable than HDDs (Hard Disk Drives), which use mechanical parts to read/write data.
15. What is a computer network?
A computer network is a group of interconnected computers that can share data and resources.
16. What is the Internet?
The Internet is a global network of interconnected computers, allowing users to share information and communicate.
17. What is a browser?
A browser is software used to access and view websites, such as Google Chrome or Firefox.
18. What is cloud computing?
Cloud computing is the delivery of computing services over the internet, allowing users to access data and applications remotely.
19. What is an IP address?
An IP address is a unique numerical label assigned to each device connected to a network.
20. What is a firewall?
A firewall is a security system that monitors and controls incoming and outgoing network traffic.
21. What is the function of an antivirus?
Antivirus software protects computers from malware, viruses, and other security threats.
22. What is multitasking in computers?
Multitasking is the ability of a computer to run multiple programs simultaneously.
23. What is virtual memory?
Virtual memory is a technique that uses hard disk space as additional RAM when the physical RAM is full.
24. What is a byte?
A byte is a unit of data, typically 8 bits, representing a single character in the computer.
25. What are bits?
Bits (binary digits) are the smallest units of data in a computer, representing 0s and 1s.
26. What is the difference between kilobyte and megabyte?
1 kilobyte (KB) is 1,024 bytes, while 1 megabyte (MB) is 1,024 kilobytes.
27. What is the function of a GPU?
A GPU (Graphics Processing Unit) handles rendering images and video, especially in gaming and graphic design.
28. What is a peripheral device?
Peripheral devices are external devices connected to the computer, such as printers, scanners, and external drives.
29. What is open-source software?
Open-source software is software whose source code is publicly available for modification and distribution.
30. What is proprietary software?
Proprietary software is owned by a company and its source code is not made publicly available.
31. What is a server?
A server is a computer that provides data or services to other computers in a network.
32. What is a client in a network?
A client is a computer that requests services or resources from a server.
33. What is encryption?
Encryption is the process of converting data into a secure code to prevent unauthorized access.
34. What is a URL?
A URL (Uniform Resource Locator) is the address used to access websites and resources on the internet.
35. What is a database?
A database is an organized collection of data, stored electronically for easy access and management.
36. What is an algorithm?
An algorithm is a step-by-step procedure used to solve a problem or perform a task in computing.
37. What is machine learning?
Machine learning is a type of artificial intelligence that allows computers to learn from data without being explicitly programmed.
38. What is artificial intelligence (AI)?
AI is the simulation of human intelligence in computers, enabling them to perform tasks like decision-making and problem-solving.
39. What is a compiler?
A compiler translates high-level programming code into machine code that can be executed by a computer.
40. What is a file system?
A file system organizes and manages how data is stored and retrieved on storage devices.
41. What is a pixel?
A pixel is the smallest unit of a digital image, typically displayed on a screen.
42. What is the binary system in computing?
The binary system uses two symbols, 0 and 1, to represent data in computers.
43. What is the difference between hardware and software?
Hardware refers to the physical parts of a computer, while software refers to the programs and data.
44. What is a protocol in networking?
A protocol is a set of rules that govern data communication between devices in a network.
45. What is a LAN?
A LAN (Local Area Network) is a network of computers in a limited area, like an office or building.
46. What is a WAN?
A WAN (Wide Area Network) is a network that covers a large geographic area, such as the internet.
47. What is DNS?
DNS (Domain Name System) translates domain names into IP addresses to access websites.
48. What is HTTP?
HTTP (Hypertext Transfer Protocol) is the protocol used to transfer web pages over the internet.
49. What is HTTPS?
HTTPS is a secure version of HTTP, encrypting data transferred between the browser and server.
50. What is a cookie in computing?
A cookie is a small file stored on a user's computer by a website to track user activity.
51. What is malware?
Malware is malicious software designed to harm or exploit computers.
52. What is a Trojan horse in computing?
A Trojan horse is malware disguised as legitimate software, tricking users into installing it.
53. What is phishing?
Phishing is a cyberattack where hackers try to obtain sensitive information by impersonating legitimate entities.
54. What is a VPN?
A VPN (Virtual Private Network) encrypts your internet connection to provide privacy and security online.
55. What is a backup?
A backup is a copy of data stored separately to prevent data loss in case of failure.
56. What is cloud storage?
Cloud storage is the process of storing data on remote servers accessed via the internet.
Cloud storage is the process of storing data on remote servers accessed via the internet.
57. What is an email client?
An email client is software that allows users to send, receive, and manage emails, like Outlook.
58. What is cybercrime?
Cybercrime is illegal activities conducted over the internet, like hacking and identity theft.
59. What is a virus in computing?
A virus is a type of malware that can replicate itself and spread to other files or programs.
60. What is data encryption?
Data encryption is the process of converting data into a code to prevent unauthorized access.
61. What is a database management system (DBMS)?
A DBMS is software that manages and organizes databases, allowing users to create, retrieve, update, and delete data.
62. What is the difference between data and information?
Data is raw, unprocessed facts, while information is data that has been processed to be meaningful.
63. What is an API?
An API (Application Programming Interface) allows different software applications to communicate and share data.
64. What is cache memory?
Cache memory is high-speed storage located close to the CPU, used to store frequently accessed data for quick retrieval.
65. What is a spreadsheet?
A spreadsheet is a software application (like Microsoft Excel) used for organizing, analyzing, and storing data in tables.
66. What is virtualization in computing?
Virtualization is the process of creating a virtual version of something, like virtual hardware platforms, storage devices, or networks.
67. What is cybersecurity?
Cybersecurity is the practice of protecting computers, networks, and data from unauthorized access and cyberattacks.
68. What is the function of a router?
A router directs data traffic between different networks, such as the internet and local networks.
69. What is a computer virus?
A computer virus is a type of malware that spreads by attaching itself to other programs and files.
70. What is system software?
System software manages the hardware and provides services for other software. Examples include operating systems and utilities.
71. What is application software?
Application software is designed to perform specific tasks, such as word processing, web browsing, or photo editing.
72. What is the function of a modem?
A modem converts digital data into signals that can be transmitted over phone lines or other mediums.
73. What is open-source software?
Open-source software is software that allows anyone to view, modify, and distribute its code.
74. What is proprietary software?
Proprietary software is owned by a company or individual and does not allow users to access or modify its source code.
75. What is the command line?
The command line is a text-based interface used to interact with the computer by typing commands.
76. What is the difference between the command line and GUI?
The command line is text-based, while a GUI (Graphical User Interface) uses visual elements like icons and buttons for interaction.
77. What is a device driver?
A device driver is software that allows the operating system to communicate with hardware devices.
78. What is firmware?
Firmware is software embedded in hardware devices, controlling their basic functions.
79. What is a QR code?
A QR code is a two-dimensional barcode that can store information and be scanned by devices like smartphones.
80. What is Bluetooth?
Bluetooth is a wireless technology that allows devices to communicate and transfer data over short distances.
81. What is Wi-Fi?
Wi-Fi is a wireless technology that allows devices to connect to the internet and communicate within a local area network.
82. What is Ethernet?
Ethernet is a wired network technology used to connect devices in a local area network (LAN).
83. What is a phishing attack?
A phishing attack is a cybercrime where attackers trick individuals into providing sensitive information, often through fraudulent emails.
84. What is a hyperlink?
A hyperlink is a link in a document or webpage that redirects to another webpage or resource when clicked.
85. What is 2FA (Two-Factor Authentication)?
2FA adds an extra layer of security by requiring two forms of identification, such as a password and a code sent to your phone.
86. What is a CAPTCHA?
A CAPTCHA is a test used to distinguish between humans and bots, often by identifying objects in images.
87. What is cloud storage?
Cloud storage allows users to store data online on remote servers rather than on local devices.
88. What is a VPN (Virtual Private Network)?
A VPN provides a secure connection to another network over the internet, protecting data and privacy.
89. What is a web server?
A web server hosts websites and delivers web pages to users through their browsers.
90. What is a database query?
A database query is a request to retrieve specific data from a database.
91. What is an algorithm?
An algorithm is a series of steps or rules used to solve a problem or perform a task.
92. What is big data?
Big data refers to extremely large data sets that can be analyzed to reveal patterns, trends, and associations.
93. What is artificial intelligence?
Artificial intelligence (AI) refers to the simulation of human intelligence in machines that can perform tasks like problem-solving and decision-making.
94. What is a chatbot?
A chatbot is a software program designed to simulate conversation with users, often used in customer service or information retrieval.
95. What is virtual reality (VR)?
Virtual reality is a technology that immerses users in a simulated 3D environment using special devices like VR headsets.
96. What is augmented reality (AR)?
Augmented reality overlays digital information onto the real world, often through smartphones or AR glasses.
97. What is a kernel in operating systems?
A kernel is the core part of an operating system, managing hardware resources and system operations.
98. What is a peer-to-peer network?
A peer-to-peer (P2P) network allows computers to connect and share resources directly without a central server.
99. What is a virtual machine (VM)?
A virtual machine is a software-based emulation of a physical computer, allowing you to run multiple operating systems on one device.
100. What is blockchain technology?
Blockchain is a decentralized digital ledger technology used to securely record transactions across multiple computers in a network.
