CPU
CPU stands for Central Processing Unit
What is RAM?
RAM (Random Access Memory) is a type of volatile memory that provides temporary storage for data that the CPU is actively using.
Differentiate between hard disk drives (HDDs) and solid-state drives (SSDs) in terms of their technology and advantages.
HDDs use spinning disks and mechanical read/write heads to store and retrieve data. They are less expensive per gigabyte and have larger capacities but are slower and less durable.
What are input devices, and why are they essential in computing?
Input devices are hardware components that allow users to provide data or commands to a computer. They are essential in computing because they enable interaction and communication between users and machines, allowing users to input information, control software, and perform tasks.
What is a port in the context of computers?
A port in the context of computers is a physical or virtual interface that allows for the connection of external devices.
What is its primary function in a computer?
Its primary function in a computer is to execute instructions and perform calculations. It acts as the "brain" of the computer, processing data and controlling the operation of all other hardware components.
Explain the purpose of ROM in a computer system.
ROM (Read-Only Memory) is a type of non-volatile memory that stores firmware and essential system instructions. It contains data that cannot be modified or erased by typical computer operations.
What is the role of optical drives like DVD and Blu-ray in modern computing?
Optical drives like DVD and Blu-ray drives are used to read and write optical discs.
What are output devices, and how do they differ from input devices?
Output devices present information generated by the computer to the user. They differ from input devices, which provide data to the computer.
Explain the key distinction between physical ports and virtual ports (software ports) in computing.
Physical ports are tangible connectors on a computer or device where you can physically plug in cables and peripherals. Virtual ports, on the other hand, are software-based and are used for communication between software applications on the same or different devices.
What is the difference between a CPU and a GPU?
A CPU (Central Processing Unit) is the primary processor in a computer responsible for general-purpose computing tasks, while a GPU (Graphics Processing Unit) is specialized for rendering graphics and performing parallel processing tasks.
Describe the concept of virtual memory.
Virtual memory is a memory management technique that uses a combination of physical RAM and space on the storage device (usually a hard drive or SSD) to simulate more RAM than is physically available.
What is the purpose of a file system, and how does it organize and manage data on storage devices?
A file system organizes and manages data on storage devices, providing a structured way to store, access, and manage files and directories.
Provide examples of basic input devices commonly found in a computer setup.
Common basic input devices include keyboards, mice, touchpads, webcams, and microphones.
Discuss the role of a DisplayPort (DP) and its capabilities, especially in video and audio transmission in high-resolution displays.
DisplayPort is a high-performance interface for transmitting video and audio. It supports high-resolution displays, and multiple monitors, and is capable of daisy-chaining displays.
How does multi-core technology improve the performance of modern computers?
Multi-core technology improves modern computer performance by allowing the CPU to handle multiple tasks simultaneously. Each core can execute its own set of instructions, so tasks can be distributed among the cores, leading to faster and more efficient multitasking and improved performance for software that can take advantage of multiple cores.
Differentiate between volatile and non-volatile memory?
Volatile memory, like RAM, is temporary and loses data when the power is turned off. Non-volatile memory, like SSDs and ROM, retains data even when the power is off.
What does the term "formatting" mean in the context of storage devices?
Formatting refers to the process of preparing a storage device for data storage.
Describe the operation of a traditional computer mouse, and contrast it with the functioning of an advanced laser or optical mouse in terms of precision and surface compatibility.
A traditional mouse uses a rubber ball or optical sensor to detect movement. Laser and optical mice use advanced sensors for increased precision and compatibility with various surfaces.
What is the purpose of a USB (Universal Serial Bus) port, and what are some common devices that connect to USB ports?
USB ports are versatile and used for connecting a wide range of devices, including external hard drives, flash drives, keyboards, mice, printers, smartphones, cameras, and other peripherals. They facilitate data transfer and power delivery.
What is CPU cache memory?
CPU cache memory is a small, high-speed memory unit located on the CPU chip. It serves as a buffer between the CPU and the main memory (RAM).
Explain the concept of memory hierarchy in computing.
Memory hierarchy in computing refers to the organization of different types of memory with varying capacities, speeds, and costs, designed to optimize the overall performance of a computer system.
Describe the concept of data backup and its importance in data storage.
Data backup is the practice of creating copies of important data to protect against data loss. Common backup methods include external hard drives, cloud storage, network-attached storage (NAS)
What are some drawbacks of converting DVI to VGA?
Loss of quality in:
- Colour
-Clarity
-Audio
How does an eSATA (external Serial Advanced Technology Attachment) port differ from USB or other external storage connections, and when might it be preferred for external hard drives or SSDs?
eSATA provides a faster and more direct connection for external hard drives and SSDs compared to USB. It's often preferred for large data transfers, backups, and high-performance storage solutions. However, it requires an eSATA-compatible port on the computer, which is less common than USB ports.