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Questions and Answers
What is the measure of data that equals one trillion bytes?
Which type of software is specifically designed to allow users to accomplish work-related tasks efficiently?
Which of the following binary prefixes represents one million bytes?
What functionality does an operating system provide?
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Which type of software is used to fix or modify a computer's performance?
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Which category of software helps programmers to code and test their applications?
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Which operating system is NOT commonly known as an example of an operating system?
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Enterprise Resource Planning (ERP) software is primarily used for what purpose?
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Which of the following is not considered a digital input device?
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What component is often referred to as the main circuit board in a computer?
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Which of the following best describes the role of the CPU?
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What type of memory is cleared when the computer is powered off?
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Which of the following attributes best differentiates a Solid State Drive (SSD) from a Hard Disk (HD)?
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What is a primary characteristic of cloud computing?
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Which type of software primarily manages business functions and workflows in organizations?
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What wireless technology allows devices to communicate within a short range?
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What is one of the primary functions of Customer Relationship Management (CRM) software?
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Which of the following is a major disadvantage of cloud computing?
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In what way does open-source software differ from closed-source software?
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What is the main focus of Supply Chain Management (SCM) software?
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Which of the following is an example of cloud computing?
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What trend is observed in mobile commerce as per the discussed content?
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Which of the following statements best describes a key advantage of cloud computing?
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What risk is associated with open-source software?
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Study Notes
Hardware Components
- Hardware are the physical parts of a computing device that you can touch.
- Examples include desktop computers, laptops, mobile phones, tablets, e-readers, storage devices, input devices, and output devices.
- Input devices take information into the computer, examples include keyboards, mice, scanners, and styluses.
- Output devices display or create information from the computer, examples include printers and speakers.
- Ports are used to connect input and output devices to the motherboard.
- Wireless technologies like Bluetooth connect devices within 10-100 meters, requiring each device to have a Bluetooth chip and be paired.
- WiFi connects devices to each other and the internet, using the local WiFi network.
Internal Components
- The motherboard is the main circuit board holding the CPU, memory, and storage components.
- The CPU (central processing unit) carries out commands from software, returning results. Speed is measured in hertz.
- Multi-core CPUs (quad-core, Core i9 with 16 cores) increase processing speed.
- Memory is temporary storage called RAM (random-access memory) that applications are loaded into for faster run times. RAM data is cleared when the computer is powered off.
- More RAM is faster.
Storage
- Hard disks (HD) provide longer, permanent storage of data.
- Solid state drives (SSD) are lighter and faster than HDs with no moving parts.
- Removable media like USB drives can be connected to different computers.
- More storage space and faster data transfer rates are ideal.
Storage Measurement
- Digital devices process electronic signals in 1's and 0's, called bits.
- Eight bits equal one byte.
- Kilobyte (KB) is one thousand bytes.
- Megabyte (MB) is one million bytes.
- Gigabyte (GB) is one billion bytes.
- Terabyte (TB) is one trillion bytes.
Software
- Software is a set of instructions telling hardware what to do.
- Two main types of software are operating systems and application software.
- Operating systems manage hardware, create a user interface, and provide a platform for software developers to write applications.
- Examples include Microsoft Windows, Apple Mac OS, and Linux.
Application Software
- Application software helps users accomplish goals and purposes.
- Productivity software allows employees to complete job duties efficiently, examples include Microsoft Office.
- Utility software assists in fixing or modifying a computer, examples include antivirus software.
- Programming software allows developers to code, test, and convert software into a computer-readable format, often free from the company that developed the language.
- Enterprise application software includes ERP (Enterprise Resource Applications), CRM (Customer Relationship Management), and SCM (Supply Chain Management).
Enterprise Application Software
- ERP provides a common application supporting functions across an entire enterprise.
- ERP may include aspects of general ledger and subsidiary accounts like accounts payable and receivables, building in best business practices.
- SAP is the most popular ERP.
- CRM manages an organization's customers and personalizes relationships with them. Salesforce is an example of a CRM.
- SCM manages relationships between suppliers, manufacturing, and distributors.
- ERP may encompass aspects of CRM and SCM.
Cloud Computing
- Cloud computing refers to internet-based applications, services, and data storage, examples include email and Google Drive.
- Advantages: No software installation or updates, access with internet connection, data accessibility even with a hard drive crash, quick access to new apps.
- Disadvantages: Information is stored on someone else's computer, internet access is required, reliance on a third-party provider.
Open Source Software
- Open-source software code is shared for everyone to use, modify, and add features.
- Large programmer groups can contribute to bug fixes and new features.
- Software is available for free.
- Users can review source code before installing.
- Open source can pose an increased risk of attack as everyone knows the software structure.
- Examples include Firefox browser and Linux operating system.
Closed Source Software
- Closed-source software's technical support is provided by the company that developed it.
- Companies employ large numbers of developers to continuously improve products.
Emerging Trends
- Smartphones and mobile use are increasing significantly, mobile commerce accounts for a large portion of e-commerce traffic.
- The Internet of Things (IoT) is a network of connected devices collecting data. Examples include fitness trackers, garage door openers, refrigerator grocery lists, thermostats, home security systems, and medical devices.
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Description
Test your knowledge on the physical components of computers with this quiz. Learn about hardware parts, including input and output devices, as well as internal components like the motherboard and CPU. Perfect for students and tech enthusiasts!
