2023 NECO Computer Studies Questions and Answers
(Essay and Objectives)
2023 NECO Computer Studies Answers: Get the NECO 2023 Computer Studies Questions and answers for 2023 Paper 2 and 3 (Essay and Objectives).
We have the 2023 NECO Computer Studies Questions and Answers Expo, so count yourself lucky to be here on our website, where we provide real and verified answers.
We are best EXAM runs website, so subscribe with us today for your NECO Examination Questions and Answers Now.
Note: Our Exam Answers come 3hours before the exam time (2023 NECO Questions and Answers Expo and Runs ). Click here to Subscribe Now!
NECO 2023 Computer Studies Objectives Solutions
NECO 2023 Computer Studies Essay Solutions
(3ai)
The instruction cycle, also known as the machine cycle, is the basic operation performed by a computer’s central processing unit (CPU) to execute each instruction. It consists of the following steps ; Fetch, decode and execute.
(3aii)
(i) Efficient transaction processing: POS machines streamline transactions, reducing processing time and improving customer experience.
(ii) Accurate sales tracking: POS machines provide real-time sales data, helping businesses track inventory, sales trends, and revenue.
(3aiii)
(i) Complexity: Flowcharts can become cluttered and difficult to read as the process becomes more complex.
(ii) Limited scalability: Flowcharts are not ideal for representing large, intricate systems or processes.
(3bi)
35F₁₀ = 3 × 16² + 5 × 16¹ + 15 × 16⁰
= 3 × 256 + 5 × 16 + 15
= 768 + 80 + 15
= 863₁₀
(3bii)
(i) Adobe Dreamweaver
(ii) WordPress
(5ai)
Primary data is data collected directly from first-hand experience. This data is original and has not been previously published. In the other hand, Secondary data is data that has been previously collected and published by others. This data is not original but rather a summary or analysis of existing information.
(5aii)
(PICK ANY FOUR)
(i) Word Processing Software: Used for creating, editing, formatting, and printing documents. Examples include Microsoft Word and Google Docs.
(ii) Spreadsheet Software: Used for organizing, analyzing, and storing data in tabular form. Examples include Microsoft Excel and Google Sheets.
(iii) Database Management Software: Used for creating and managing databases. Examples include Oracle, MySQL, and Microsoft Access.
(iv) Presentation Software: Used for creating and displaying slideshows and presentations. Examples include Microsoft PowerPoint and Google Slides.
(v) Graphics and Design Software: Used for creating and editing visual content, including images, illustrations, and designs. Examples include Adobe Photoshop and CorelDRAW.
(vi) Web Browsers: Used for accessing and navigating the internet. Examples include Google Chrome, Mozilla Firefox, and Microsoft Edge.
(vii) Email Clients: Used for sending, receiving, and organizing emails. Examples include Microsoft Outlook and Mozilla Thunderbird
(5bi)
| A | B | C | D | Output (NAND) |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 1 |
| 0 | 0 | 0 | 1 | 1 |
| 0 | 0 | 1 | 0 | 1 |
| 0 | 0 | 1 | 1 | 1 |
| 0 | 1 | 0 | 0 | 1 |
| 0 | 1 | 0 | 1 | 1 |
| 0 | 1 | 1 | 0 | 1 |
| 0 | 1 | 1 | 1 | 1 |
| 1 | 0 | 0 | 0 | 1 |
| 1 | 0 | 0 | 1 | 1 |
| 1 | 0 | 1 | 0 | 1 |
| 1 | 0 | 1 | 1 | 1 |
| 1 | 1 | 0 | 0 | 1 |
| 1 | 1 | 0 | 1 | 1 |
| 1 | 1 | 1 | 0 | 1 |
| 1 | 1 | 1 | 1 | 0 |
(5bii)
(PICK ANY TWO)
(i) The Arithmetic and Logic Unit (ALU) performs all arithmetic operations such as addition, subtraction, multiplication, and division.
(ii) The ALU also performs logical operations such as AND, OR, NOT, XOR, and comparison operations (like equal to, greater than, and less than).
(iii) The ALU performs bitwise operations, which are operations that directly manipulate individual bits of binary numbers. These operations include bitwise AND, OR, XOR, and NOT.
(iv) The ALU can perform shift operations, which involve moving bits to the left or right within a binary number.
2024 NECO DATA PROCESSING ANSWERS
(3bii)
(a)A hierarchical database is a type of database that organizes data in a tree-like structure, with each record having a single parent record and multiple child records. This structure is similar to a file system, where directories and subdirectories are organized in a hierarchical manner.
KEY FEATURES OF HIERARCHICAL DATABASES:
(i)Data is organized in a tree-like structure
(ii)Each record has a single parent record and multiple child records
(iii)Relationships between records are represented as links between nodes
(iv)Data is stored in a series of segments, each containing a group of related records
(v)Supports fast data retrieval and efficient data storage
EXAMPLES OF HIERARCHICAL
(i)IBM’s IMS (Information Management System)
(ii) Windows Registry
(iii) XML (Extensible Markup Language) documents
(B) A network database is a type of database that organizes data as a network of interconnected records, allowing for multiple relationships between records. This model was developed to overcome the limitations of hierarchical databases.
IN A NETWORK DATABASE:
(i)Data is stored as a collection of records, called nodes or segments
(ii)Each record has multiple parents and children, forming a web-like structure
(iii)Relationships between records are represented as links or pointers
(iv)Each record can have multiple owners and multiple members.
FEATURES OF NETWORK DATABASES
(i)Multiple relationships between records
(ii)Flexible data modeling
(iii)Efficient data storage and retrieval
(iv)Support for large-scale applications
EXAMPLES OF NETWORK DATABASES
(i)IDS (Integrated Data Store)
(ii)IDMS (Integrated Database Management System)
(iii)Network models like the CODASYL (Conference on Data Systems Languages) model
(C) A relational database is a type of database that organizes data into one or more tables, with each table having rows and columns, similar to an Excel spreadsheet. Each row represents a single record, and each column represents a field or attribute of that record.
IN A RELATIONAL DATABASE:
(i)Data is stored in tables, with each table having a unique name
(ii)Each table has rows (records) and columns (fields)
(ii)Data is manipulated using SQL (Structured Query Language)
Also Relational databases follow the relational model, which was introduced by Edgar F. Codd in 1970. The model is based on the concept of relational algebra, which uses mathematical operations to manipulate data.
FEATURES OF RELATIONAL DATABASES ARE:
(i)Data normalization
(ii)Data integrity
(iii)Data consistency
(iv)Support for querying using SQL
EXAMPLES OF RELATIONAL DATABASES
(i)MySQL
(ii)PostgreSQL
(iii)Microsoft SQL Server
(iv)Oracle
.
If you want to get the 2023 WAEC, NECO or NABTEB Questions and Answers 3Hours before the Exam Date and time, Click here. and Subscribe to our NECO Exam answers.
TO SUBSCRIBE FOR 2023 WAEC, NECO & NABTEB EXAM ANSWERS VIA WHATSAPP JOIN OUR GROUP
We are the Top Examination Expo Website for WAEC, NECO and NABTEB Exams Runs and Verified Exam Answers provider in Nigeria, Ghana, Gambia, Sierra Leone, Liberia, Cameron, etc.
We have Questions and Answers in all Subjects for WAEC, NECO and NABTEB.
Join Our Whatsapp Group Now to gain access, Click Here To Join.
Note: Our WAEC/NECO/NABTEB Exam Expo and RUNZ Answers come 3hours before the exam time (Verified Answers).