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COMPUTER SYSTEM FOR BUSINESS

INFORMATION AND COMMUNICATION TECHNOLOGY
ICT LEVEL ONE & TWO

SUBJECT: COMPUTER SYSTEM FOR BUSINESS
MAY/JUNE 2022

INSTRUCTIONS: Answer all question in SECTION A and SECTION B You
Are advised not to spend more than 1 hour on SECTION A.

SECTION A

Answer All Question

Hardware is any element of a computer that's physical. This includes things like monitors, keyboards, and also the insides of devices, like microchips and hard drives.

Software is anything that tells hardware what to do and how to do it, including computer programs and apps on your phone.

RAM stands for random access memory, is volatile memory that temporarily stores the files you are working on.

ROM stands for read-only memory, is non-volatile memory that permanently stores instructions for your computer.

A typical motherboard contains the CPU, memory, storage, ROM BIOS, Southbridge and Northbridge chipsets, cooling fans, peripheral connector slots, connectors for peripheral devices, the battery backup and the power connector.

  1. USB: Universal Serial Bus
  2. WYSIWYG: What You See Is What You Get

Data backup means creating a copy of the data on your system that you use for recovery in case your original data is lost or corrupted.

To convert the decimal number 25 to binary,
Divide 25 by 2:
Quotient: 12
Remainder: 1
Divide the quotient (12) by 2:
Quotient: 6
Remainder: 0
Divide the new quotient (6) by 2:
Quotient: 3
Remainder: 0
Divide the new quotient (3) by 2:
Quotient: 1
Remainder: 1
Divide the final quotient (1) by 2:
Quotient: 0
Remainder: 1
Now, read the remainders in reverse order (bottom to top): 11001 So, the decimal number 25 is equal to the binary number 11001.

Features of fifth-generation computers are :
  1. Use of Artificial Intelligence.
  2. Use of optical fiber in circuits.
  3. Development of the elements of programs.
  4. Use of Natural language.
  5. Magnetic enabled bio-chips.

Computer Literate refers to possessing the knowledge and skills necessary to use computers and related technology effectively. A computer-literate individual understands basic computer concepts, can navigate software and operating systems, and is familiar with common applications and tools.

Internet Connectivity refers to the way people are hooked up to the Internet, and may include dial-up telephone lines, always-on broadband connections, and wireless devices.

A spelling checker may highlight words in certain contexts even if they are spelled correctly. This occurs when the word doesn't fit the context or if there's a potential issue that the spelling checker detects.

  • Colour
  • They're
  • Effect
  • Affect
  • You're


  • SECTION B

    Answer all Questions

    A computer system is a complex combination of hardware, software, peripherals, and data that work together to perform various functions, process information, and execute tasks.
    1. Processing Data
    2. Storing Data
    3. Retrieving and Displaying Information
    4. Executing Programs
    5. Storing and Retrieving Files
    6. Processing and Analyzing Information

    System Software
    System software is a type of software that manages and controls the hardware components of a computer system. It provides a platform for running application software and acts as an intermediary between the user and the computer hardware.


    Application Software
    Application software is a type of software designed to perform specific tasks or functions for end-users.

    1. Business Computers play a vital role in managing and organizing vast amounts of business data. Database systems enable efficient storage, retrieval, and analysis of information, supporting decision-making processes.
    2. Healthcare Computers facilitate the creation and maintenance of electronic health records, improving the accuracy and accessibility of patient information for healthcare providers.
    3. CommunicationComputers are central to email communication, facilitating efficient and instant messaging. They support various email clients and messaging applications for personal and professional communication.

    Theinternet is a global network of interconnected computers and computer networks. It is a vast and decentralized infrastructure that allows communication, information sharing, and the transfer of data between devices worldwide.

    AnIntranetis a private, internal network within an organization that uses internet technologies to share information, resources, and collaboration tools among its employees, and Extranetis a controlled private network that extends beyond an organization's internal network to include external users, such as customers, suppliers, or partners.

    Database Management System. It is software that enables users to manage databases, including creating, modifying, organizing, and retrieving data. DBMS provides a centralized platform for storing and manipulating data efficiently and securely.
    (2) advantages of DBMS software
    1. Improved Data Integrity and Consistency.
    2. Enhanced Data Security.
    3. Improved Data Accessibility and Control.
    4. Better Data Backup and Recovery.
    5. Data Abstraction.
    The document lifecycle describes the various processing phases of a document - from generation and processing to legally compliant archiving and deletion. There is an analog document lifecycle, a digital document lifecycle, and a mixed form. However, the individual phases hardly differ from each other.
    Indexing would create an index file that contains only the logical order of rows along with their physical position in the table whereas with sorting, a copy of the sorted table has to be stored. Usually, the index file requires lesser space than storing a sorted table.
    Analog Computers
    Analog Computers Work on continuous values. Analog Computers have low memory.
    Digital computers Work on discrete values. Digital computers have a very large memory Digital computers have fast speed.
    In Word, you can automate frequently used tasks by creating and running macros. A macro is a series of commands and instructions that you group together as a single command to accomplish a task automatically.

    create a Macro in Word

    Step 1: Open the new or an existing Word document.
    Step 2: Click on the View tab on the Ribbon and click on the drop-down icon associated with the Macros in the Macros section.
    Step 3: Click on the Record Macro from the drop-down menu.