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Questions and Answers
What is a handheld computer primarily used for?
What is a handheld computer primarily used for?
Supercomputers are typically used for general office productivity tasks.
Supercomputers are typically used for general office productivity tasks.
False
What is one primary use of a mainframe computer?
What is one primary use of a mainframe computer?
Supporting hundreds or thousands of users simultaneously
A games console is primarily designed for __________.
A games console is primarily designed for __________.
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Which of the following is NOT a function of the Operating System?
Which of the following is NOT a function of the Operating System?
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Match the following types of software with their descriptions:
Match the following types of software with their descriptions:
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Embedded computers are designed for a wide range of applications.
Embedded computers are designed for a wide range of applications.
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Name one application of supercomputers.
Name one application of supercomputers.
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What is the main function of a CPU?
What is the main function of a CPU?
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Which device is used primarily for inputting images into a computer?
Which device is used primarily for inputting images into a computer?
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A netbook is larger and heavier than a laptop.
A netbook is larger and heavier than a laptop.
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The ______ is an output device that produces hard copies of documents.
The ______ is an output device that produces hard copies of documents.
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Which type of memory is non-volatile and stores firmware?
Which type of memory is non-volatile and stores firmware?
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Match the following types of storage devices with their characteristics:
Match the following types of storage devices with their characteristics:
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A digital camera is considered an input device.
A digital camera is considered an input device.
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Name one benefit of establishing a network.
Name one benefit of establishing a network.
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Which of the following is true about RAM?
Which of the following is true about RAM?
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ROM can be written to and read from.
ROM can be written to and read from.
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What is the main function of presentation software?
What is the main function of presentation software?
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1 Terabyte or 1 TB is equal to __________ Gigabytes.
1 Terabyte or 1 TB is equal to __________ Gigabytes.
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Match the type of memory with its description:
Match the type of memory with its description:
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Which statement is accurate about a Hard Disk Drive (HDD)?
Which statement is accurate about a Hard Disk Drive (HDD)?
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Data stored in RAM is cleared when the computer is switched off.
Data stored in RAM is cleared when the computer is switched off.
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What is the primary purpose of project management software?
What is the primary purpose of project management software?
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What is the main advantage of using RAID?
What is the main advantage of using RAID?
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Optical disks such as CDs and DVDs are primarily made from metal.
Optical disks such as CDs and DVDs are primarily made from metal.
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What is the typical storage capacity of a standard CD?
What is the typical storage capacity of a standard CD?
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A single-sided, single-layer DVD can typically store up to __________.
A single-sided, single-layer DVD can typically store up to __________.
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Match the following types of optical disks with their descriptions:
Match the following types of optical disks with their descriptions:
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Which of the following items is considered a type of flash memory?
Which of the following items is considered a type of flash memory?
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Magnetic tape allows for random access of data.
Magnetic tape allows for random access of data.
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What is the primary use of external hard disks?
What is the primary use of external hard disks?
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Which of the following is NOT a type of computer crime?
Which of the following is NOT a type of computer crime?
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Downloading music without the correct license is considered copyright violation.
Downloading music without the correct license is considered copyright violation.
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What should be ensured to reduce the risk of Repetitive Strain Injury (RSI)?
What should be ensured to reduce the risk of Repetitive Strain Injury (RSI)?
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Using emails to deceive individuals into providing personal information is known as __________.
Using emails to deceive individuals into providing personal information is known as __________.
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Match the following items with their corresponding risks or effects:
Match the following items with their corresponding risks or effects:
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When transferring data to another country, it is important to ensure that:
When transferring data to another country, it is important to ensure that:
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A computer program can only be protected by copyright law.
A computer program can only be protected by copyright law.
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What is one physical safeguard to protect data?
What is one physical safeguard to protect data?
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Study Notes
ICT System Types
- PCs: Desktop computers with monitor, keyboard, system unit, and mouse.
- Laptops: Larger and heavier than A4 file.
- Notebooks: Small laptop, about the size of an oversized book.
- Netbooks: Very small laptop, optimized for internet and email.
- Handheld: Pocket-sized devices like PDAs or smartphones, with touch screen.
- Mainframe: Large, expensive computer supporting hundreds to thousands of users simultaneously.
- Supercomputers: Fastest computers, used for high-performance tasks like weather forecasting.
- Embedded Computers: Specialized devices built into specific applications, like appliances or vehicles.
- Games Consoles: PCs designed for video gaming.
System Software
-
Operating System (OS): Controls computer's hardware and interacts with application software.
- Performs functions like input/output control, error handling, resource allocation, user interface, and file handling.
Application Software
-
Office Productivity Tools:
- Word Processing: Creating and editing text documents.
- Desktop Publishing: Creating professional-looking documents.
- Spreadsheet: Manipulating data and calculations.
- Database: Storing and retrieving data efficiently.
- Web Authoring: Creating websites using HTML to combine text and graphics.
- Image and Sound Editing: Editing pictures, videos, and music.
- Presentation Software: Creating and delivering presentations with text and graphics.
- Project Management Software: Tracking and charting tasks and deadlines for projects.
Data Storage Capacity
- 1 Kilobyte (KB): 1024 bytes
- 1 Megabyte (MB): 1024 KB (1,048,576 bytes)
- 1 Gigabyte (GB): 1024 MB
- 1 Terabyte (TB): 1024 GB
Main Memory
- RAM (Random Access Memory): Volatile memory, can be written to, read from, and edited. Used for active program and data.
-
ROM (Read Only Memory): Non-volatile memory, data cannot be changed. Contains essential system instructions for the computer.
- PROM (Programmable Read Only Module): Can be programmed once by a company.
- EPROM (Erasable Programmable Read Only Module): Data can be erased using a special light.
Comparing RAM and ROM
| Feature | RAM | ROM |
|---|---|---|
| Data Access | Read and write | Read-only |
| Data Storage | Active programs and data | System instructions |
| Volatility | Data lost when power off | Data retained when power off |
| Location | Module plugged into motherboard | Installed on motherboard |
Storage Devices
- Hard Disk Drive (HDD): Magnetic disks that store information in concentric tracks. Used for long-term storage.
- RAID (Redundant Array of Inexpensive Drives): Stores copies of data on multiple hard drives for redundancy and data protection.
- External Hard Disks: Portable hard drives connected via USB.
-
Optical Disks: Plastic disks with etched data tracks. Read by lasers.
- CDs (Compact Discs): Store 700MB per side.
- DVDs (Digital Versatile Discs): Store 4.7GB (single-sided, single layer). Various types like DVD-R, DVD-RW, DVD-RAM, HD DVD, and Blu-ray.
- Flash Memory: EPROM with fast write/erase capabilities. Used in BIOS, memory cards (SD, Compact Flash), and flash drives.
- Magnetic Tape: Large storage capacity, but sequential access. Used for data backups.
Internet Connection
- Network Types: LAN (Local Area Network), WAN (Wide Area Network), MAN (Metropolitan Area Network), and WLAN (Wireless Local Area Network).
- Benefits of Networks: Sharing resources, collaboration, communication, cost reduction.
- Network Security: Protecting against unauthorized access, viruses, and data breaches.
- Internet Requirements: PC, Internet service provider, modem or router, network cabling, and web browser.
Impact of ICT
- Impact on Individuals: Provides access to information, communication, entertainment, and educational opportunities.
- Impact on Organizations: Improves efficiency, communication, and decision-making processes.
- Impact on Society: Global communication, e-commerce, digital literacy.
Legal Issues
- Copyright Violation: Illegal copying, distribution, or use of copyrighted material.
- Software Piracy: Unlicensed use or distribution of software.
- Hacking: Unauthorized access to computer systems.
- Identity Theft: Stealing personal information.
- Phishing: Deceptive emails or websites to obtain personal information.
Safety
- Ergonomics: Creating a safe and comfortable working environment for users.
- Repetitive Strain Injury (RSI): Injuries to tendons, muscles, and soft tissues caused by repetitive use of keyboard or mouse.
- Eye Problems: Eye strain from prolonged monitor use.
- Backache: Improper posture while sitting at computer.
- Fatigue and Headaches: Related to prolonged computer use.
- Trip Hazards: Untidy cables.
- Electric Shock: Risk associated with electrical devices.
-
Data Protection: Legal and ethical guidelines for storing and using personal data.
- Information Commissioner's Office (ICO) rules, data privacy laws (GDPR), and ethical guidelines for data use.
- Downloading Content: Legal and ethical considerations for downloading content from the internet, copyright laws, licenses, and permissions for specific types of downloads.
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Description
This quiz covers various types of ICT systems including PCs, laptops, notebooks, and more. Additionally, it explores the role of system software like operating systems and their functions. Test your knowledge on the characteristics and applications of these technologies.
