现已上线！2025 年 Telegram 研究 — 年度关键洞察 
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IN SUMMATION THE ABOVE ☝️ IS WHAT TOOK PLACE YESTERDAY , SUBSCRIBE WITH US IF YOU WANT THE BEST FOR YOUR EXAM , NOTHING GOOD IS FREE OF CHARGE , SO DO YOUR PAYMENT AND RECEIVE HELP FROM US AS SIMPLE AS THAT
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COMPUTER STUDIES
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*COMPUTER STUDIES*
(5a)
(TABULAR FORM)
(PICK ANY TWO)
-COMPUTER-
(i) A computer is a physical device that can execute instructions and perform various tasks
(ii) computer consists of hardware components such as processors, memory, and storage devices
(iii) A computer can execute a wide range of programs and applications
(iv) A computer can directly execute machine-level instructions
-INTERPRETER-
(i) interpreter is a software program that translates and executes high-level programming language instructions.
(ii) interpreter is a software component that runs on a computer.
(iii) interpreter is specifically designed to execute programs written in a particular programming language.
(iv) An interpreter must translate the high-level programming language instructions into machine-level instructions before they can be executed.
(5bi)
(PICK ANY ONE)
(i) Easier to read and understand, making the code more maintainable and less error-prone.
(ii) Abstraction from low-level hardware details, allowing the programmer to focus on the problem-solving logic.
(iii) Portability, as high-level language code can be executed on different computer architectures with the help of compilers or interpreters.
(5bii)
(PICK ANY ONE)
(i) Closer to the hardware, allowing for more control and optimization of system resources.
(ii) Faster execution time, as low-level instructions are directly executed by the computer's processor.
(iii) Better understanding of the underlying computer architecture and how it operates.
(5c)
(PICK ANY TWO)
(i) Efficiency: The program should be designed to use system resources (CPU, memory, storage) effectively and minimize computational overhead.
(ii) Reliability: The program should be able to handle unexpected inputs or errors gracefully, without crashing or producing incorrect results.
(iii) Maintainability: The program's code should be organized, well-documented, and easy to understand and modify by other programmers.
(iv) Modularity: The program should be divided into smaller, reusable components or modules that can be easily tested and integrated.
*COMPUTER STUDIES*
(3ai)
(PICK ANY ONE)
(i)File: File is a collection of data or information that is stored on a computer's storage device, such as a hard drive, SSD, or flash drive.
(ii)File: File serve as a fundamental unit for organizing and managing data on a computer, enabling users to store, retrieve, and manipulate information efficiently.
(3aii)
(PICK ANY ONE)
(i)Record: Record refers to a collection of related data items that are treated as a single unit.
(ii)Record: Record consists of multiple fields, each storing a specific piece of information about the entity
(3aiii)
(PICK ANY ONE)
(i)Field: field refers to a single piece of data or information within a record
(ii)Field: Fields represent the smallest units of data storage and are used to store specific attributes or properties of the entities represented by records.
(3bi)
(i)Student ID
(ii)Grade/Class
(iii)Guardian Contact
(3bii)
(i)Accessing the Student Record
(ii)Locating the Field
(iii)Editing the Field
(iv)Verifying Changes
(v)saving changes
(3biii)
(PICK ANY TWO)
(i)Microsoft Access
(ii)MySQL
(iii)Oracle Database
(iv)PostgreSQL
*(ANOTHER VERSION)*
*COMPUTER STUDIES*
(1a)
(i) Sign in: Sign in is the process of logging into a system or service using a username and password or other credentials to access personalized content or features. By signing in, users can access their accounts, settings, preferences, and other information that is specific to them.
(ii) Search engine: A search engine is a web-based tool or software program that allows users to search for information on the internet. Users can enter keywords or queries into the search engine, which then retrieves relevant results from its index of websites and web pages.
(1bi)
(i) Figure 1: Random File Access Method
(ii) Figure 2: Sequential File Access Method
(1bii)
(i) FIGURE 1:
ADVANTAGES:
(PICK ONE ONLY)
(i) Fast access to any record
(ii) Direct access to data
(iii) Efficient for reading and writing large amounts of data
(iv) Suitable for large databases
(v) Support for random access and sequential access operations
DISADVANTAGES:
(PICK ONE ONLY)
(i) Inefficient for large data sets
(ii) Prone to data corruption
(iii) Limited portability between systems
(iv) Difficulty in managing complex data structures
(v) Limited built-in search capabilities
(ii) FIGURE 2
ADVANTAGES:
(PICK ONE ONLY)
(i) Simple to implement
(ii) Cost-effective
(iii) Suitable for large amounts of data
(iv) Easy to maintain
(v) Can be read sequentially
DISADVANTAGES:
(PICK ONE ONLY)
(i) Slow access speed
(ii) Inefficient for frequent random access
(iii) Limited concurrent access
(iv) Difficulty in updating and inserting data
(v) Susceptible to data corruption
*COMPUTER STUDIES*
(2ai)
(PICK ANY ONE)
(i)Data cable is a type of cable used to transfer data between devices, such as computers, smartphones, printers, and other peripherals.
(ii)Data cable is a physical medium used to establish a connection between electronic devices for the purpose of transmitting data signals.
(2aii)
(PICK ANY TWO)
(i)USB (Universal Serial Bus) cable
(ii)HDMI (High-Definition Multimedia Interface) cable
(iii)Ethernet cable
(iv)VGA (Video Graphics Array) cable
(v)DisplayPort cable
(vi)Thunderbolt cable
(vii)SATA (Serial ATA) cable
(2aiii)
Bus speed affects data transfer within a computer system. A faster bus speed means data moves quickly between components, enhancing overall system performance, while a slower bus speed leads to delays and reduced performance.
(2bi)
Register: Register refers to a small, high-speed storage area within the CPU (Central Processing Unit) of a computer. registers play a crucial role in storing and manipulating data.
(2bii)
Address: Address refers to a unique identifier assigned to a specific memory location within a computer's memory hierarchy.
