JAMB UTME - Computer Studies - 2022

__________________ is the conversion of computer data from one format to another.

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The correct answer is "data conversion." Data conversion refers to the process of changing the format of computer data from one type to another. This may involve converting data from one file format to another, such as converting a document from Microsoft Word format to PDF. It can also involve converting data from one data type to another, such as converting a string of text to a numerical value. Data conversion can be important for many reasons, such as ensuring compatibility between different software programs, preserving data in a usable format over time, and improving the efficiency of data processing. For example, converting data to a more efficient format can reduce the amount of storage space needed, which can be important when dealing with large amounts of data. In summary, data conversion is the process of changing the format or type of computer data to make it usable in different contexts or more efficient to process.

___________________ is a program meant to be sent from one computer to another across the world wide Web.

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Word processor, spreadsheets, database, graphics and presentation software are all examples of?

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Word processor, spreadsheets, database, graphics and presentation software are all examples of application packages. Application packages are software programs designed to perform specific tasks or functions for the user. They are also known as "applications" or "apps" for short. Each of the software examples mentioned - word processor, spreadsheets, database, graphics, and presentation software - have a specific function and are designed to make tasks related to those functions easier for the user. For instance, a word processor is designed to create, edit and format text documents, while a spreadsheet program is designed to perform calculations and data analysis. Database software is designed to store, organize and retrieve large amounts of data, while graphics software is designed to create and edit visual elements such as images and videos. Presentation software is designed to create slideshows and presentations. Overall, application packages are a type of software that provides users with specific tools to perform tasks more efficiently and effectively.

A word processor can be used to

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A word processor is a computer program that is used to create, edit, and print text documents. With a word processor, you can type in text, make changes to it, format it with different fonts and styles, and then print it out if you need a hard copy. In short, a word processor allows you to write, edit, and print text in a convenient and flexible way.

The acronym IP address has its full meaning to be _________

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The acronym "IP address" stands for "Internet Protocol address". An IP address is a unique numerical identifier assigned to each device connected to the internet. Think of it like a phone number for your computer or other device. When you visit a website, your device sends a request to the website's IP address and then the website responds by sending the requested information back to your device's IP address. This is how devices on the internet communicate with each other.

What tells the computer how to use its components?

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The operating system (OS) tells the computer how to use its components. An operating system is a software program that manages the computer hardware and software resources and provides common services for computer programs. The operating system acts as an intermediary between the computer's hardware and the programs or applications that run on the computer. It is responsible for controlling and allocating memory, prioritizing system requests, ensuring security, and managing input/output operations. In short, the operating system acts as the foundation for the computer to function and allows different applications and programs to communicate with the hardware and work together.

.......... provides total solutions to reduce data redundancy, inconsistency, dependence and unauthorized access of data

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A DBMS (Database Management System) provides comprehensive solutions to reduce data redundancy, inconsistency, dependence, and unauthorized access of data. Data redundancy refers to the duplication of data in a database, which can lead to inconsistencies and take up unnecessary storage space. A DBMS helps to eliminate data redundancy by ensuring that each piece of data is stored only once and is consistently maintained. Data inconsistency refers to the occurrence of conflicting data in a database, which can lead to problems when trying to make decisions based on the data. A DBMS helps to maintain data consistency by enforcing constraints and rules that ensure that data is entered consistently and accurately. Data dependence refers to the relationship between different pieces of data in a database. A DBMS helps to reduce data dependence by allowing data to be stored in separate tables and establishing relationships between those tables. This reduces the risk of changes in one table affecting the data in another table. Finally, a DBMS provides security features to prevent unauthorized access to the data stored in the database. This includes controlling access to the database through user authentication and authorization, as well as ensuring that sensitive data is encrypted to protect it from being accessed by unauthorized individuals. In short, a DBMS provides a centralized and organized way to store, manage, and secure data to ensure its accuracy, consistency, and security.

What does RAM and ROM have in common?

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The first option, "They both deal with memory," is correct. RAM and ROM are both types of memory used in computers and other electronic devices. RAM (Random Access Memory) is a type of volatile memory that stores data temporarily and is used for running programs and applications. When the power is turned off, the data stored in RAM is lost. ROM (Read-Only Memory) is a type of non-volatile memory that stores data permanently and is used for storing the basic input/output system (BIOS) that helps to boot up the computer. The data stored in ROM cannot be easily altered or deleted. In summary, both RAM and ROM are types of memory used in electronic devices, and they both deal with storing and accessing data.

The super computers are mainly used for

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Supercomputers are high-performance computers designed for handling extremely complex and large-scale computational tasks. They are mainly used for mathematical intensive scientific applications, such as simulating complex physical phenomena, weather forecasting, and drug discovery. Supercomputers can perform a vast number of calculations in a short amount of time, which is essential for solving complex problems. These computers are designed to handle massive amounts of data and perform complex algorithms, making them ideal for handling input-output intensive processing tasks. Although they can retrieve data and manipulate records like any other computer, their true power lies in their ability to perform mathematical calculations and simulations that would be impossible for regular computers. Supercomputers are used in a wide range of fields, including aerospace, automotive, energy, finance, and healthcare, to name a few. Their use has led to breakthroughs in many fields and has contributed significantly to scientific and technological advancements.

The Internet is an example of which computer network?

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The Internet is an example of a wide area network (WAN). A WAN is a type of computer network that covers a large geographical area, such as a city, a country, or even the entire world. The Internet is a global network of interconnected computers, servers, and other devices that communicate with each other using standardized communication protocols. It allows users to access and exchange information and resources, such as email, websites, and online services, from anywhere in the world. WANs are typically composed of multiple smaller networks, such as local area networks (LANs) and metropolitan area networks (MANs), connected together using high-speed communication links, such as satellite, cable, or telephone lines. The Internet is an example of a WAN because it spans multiple countries and continents, connecting millions of devices and users in a single network.

Computers are used majorly at offices for ____________

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Computers are commonly used in offices for a variety of tasks, but some of the major purposes include: 1. Creating and editing documents: Computers are used to create and edit documents such as letters, reports, presentations, and spreadsheets. This is because computers offer a range of software applications that allow users to create and edit documents easily and quickly. 2. Communication: Computers are used to communicate with other employees, clients, and customers through email, video conferencing, and instant messaging. 3. Data management: Computers are used to store and manage data such as customer information, financial records, and inventory lists. This is because computers offer software that allows users to organize and track data efficiently. 4. Accounting: Computers are used for accounting purposes such as bookkeeping, payroll, and invoicing. This is because computers offer specialized software that allows users to manage financial data accurately and quickly. 5. Security: Computers are also used for security purposes such as monitoring and controlling access to sensitive data and systems. This is because computers offer software and hardware tools that can be used to safeguard against unauthorized access and cyber threats. Overall, computers have become an essential tool in the modern office environment, enabling employees to work more efficiently, communicate more effectively, and manage data and information more securely.

The illegal access to a network or computer system is___________

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The illegal access to a network or computer system is called hacking. Hacking refers to unauthorized access to a computer system or network with the intention of compromising its security and potentially causing harm. This can include stealing sensitive information, installing malicious software, or disrupting the normal functioning of the system. Hacking is illegal and can result in serious consequences for the hacker, such as fines and imprisonment. It is important for individuals and organizations to take steps to secure their networks and systems to prevent unauthorized access.

Internet explorer is used for

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Internet Explorer is a web browser that is used to view web pages on the internet. It allows users to access different websites and view the content on those sites, such as text, images, videos, and other media. Internet Explorer is designed to make it easy for users to navigate the internet by providing tools such as search bars, bookmarks, and tabs. While it may be possible to play movies or music within Internet Explorer, its primary purpose is to browse the internet and display web pages.

Computer software can be classified into how many parts?

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Computer software can be classified into two main parts: system software and application software. 1. System software: This type of software includes the programs that control the hardware components of a computer system and provide a platform for running other software applications. Examples of system software include operating systems, device drivers, utility programs, and firmware. 2. Application software: This type of software is designed to perform specific tasks or functions for the user. Application software can be further classified into two subcategories: general-purpose applications and specialized applications. Examples of general-purpose applications include word processors, spreadsheets, and web browsers, while examples of specialized applications include graphics software, database software, and video editing software. In summary, computer software can be classified into two main parts: system software and application software. The system software controls the hardware and provides a platform for running other software applications, while application software is designed to perform specific tasks or functions for the user.

For what does WAN stand?

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WAN stands for Wide Area Network. A network is a collection of devices (like computers, printers, and servers) that are connected together to communicate and share resources. A WAN is a type of network that covers a large geographic area, such as a city, a country, or even the whole world. Unlike a Local Area Network (LAN), which is limited to a small area like a home or office building, a WAN connects devices over a larger distance using a variety of technologies such as telephone lines, fiber optic cables, and satellite links. WANs are used by organizations to connect their different offices and branches in different locations, and to provide access to the internet or cloud-based services. For example, a company with offices in New York and London might use a WAN to connect the two locations and allow employees to share data and resources.

The combination of the arithmetic and logic units, as well as the ______________ unit makes up the central processing unit.

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The combination of the arithmetic and logic units, as well as the control unit makes up the central processing unit (CPU). A CPU is the "brain" of a computer. It is responsible for executing instructions and performing calculations. The arithmetic and logic units (ALU) are the parts of the CPU that perform mathematical operations, such as addition, subtraction, multiplication, and division, as well as logical operations, such as AND, OR, and NOT. The control unit is responsible for controlling the flow of data and instructions within the CPU and between the CPU and other parts of the computer, such as memory and input/output devices. It fetches instructions from memory, decodes them to determine what operation to perform, and then directs the ALU to perform the operation. In summary, the combination of the ALU and control unit makes up the CPU, which is responsible for processing data and instructions and performing calculations in a computer.

________ is the process of dividing the disk into tracks and sectors

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The process of dividing a disk into tracks and sectors is called "formatting". Formatting prepares a new disk for use by creating a file system that can store and organize data. Tracks are circular paths on the disk, and sectors are small sections within each track. By dividing the disk into tracks and sectors, formatting allows the operating system to efficiently read and write data to the disk. Think of it like drawing lines on a blank piece of paper to create a grid. The grid allows you to organize your content and write in an orderly manner. Similarly, formatting divides the disk into a grid-like structure that the computer can use to organize and store data.

Computer files can be characterised by all but,

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Computer files can be characterized by their title, accessibility, ability to be modified, and where they are stored. The title of a file is simply its name, which can be used to help identify and organize it among other files. Accessibility refers to whether or not a file can be accessed or viewed by the user. Depending on the permissions set by the owner of the file, it may be accessible to everyone, only to specific users, or not accessible at all. The ability to be modified refers to whether or not the file can be edited or changed in some way. For example, a text file can be modified by adding, deleting, or changing the text within it. Where the file is stored refers to the location on a computer or network where the file is saved. This could be on the computer's hard drive, a USB drive, a cloud storage service, or a network server. Therefore, all four of these characteristics are applicable to computer files and are important to consider when working with them.

Which computer accessory is both an input and output device?

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Which of the following is a computer not used for?

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A computer can be used for entertainment, information, and social media, so the answer is "none of the above". Computers are versatile machines that can perform a wide variety of tasks, including playing games, streaming videos, accessing news and other information, and connecting with others on social media platforms. While some computers may be designed or optimized for certain types of tasks, such as gaming or video editing, all computers are capable of handling entertainment, information, and social media to some extent. Therefore, the answer to this question is that there is no option that describes something a computer cannot be used for among the given choices.

In SQL, which command is used to remove a stored function from the database?

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The command used to remove a stored function from the database in SQL is the "DROP FUNCTION" command.

This command is used to permanently remove a stored function from the database. For example, if you have a stored function named "my_function", you can remove it with the following SQL statement:

DROP FUNCTION my_function;

It is important to note that once you drop a stored function, all references to it in your database will be lost and it cannot be recovered. So, it should be used with caution.

Which key deletes text?

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The key that deletes text is the backspace key. When you type, the characters you enter are added to the right of the cursor, which shows you where the next character will be inserted. If you want to delete a character, you can move the cursor to the left of that character using the arrow keys, and then press the backspace key. This will remove the character to the left of the cursor. You can also use the backspace key to delete a selection of text. To do this, you first need to highlight the text you want to delete by clicking and dragging the cursor over it. Once the text is highlighted, you can press the backspace key to delete it. In summary, the backspace key is used to delete characters to the left of the cursor or to delete a selected portion of text.

An inventory management program can assist with ________

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An inventory management program can assist with all of the above: distribution, purchasing, and planning. Inventory management involves keeping track of a company's stock of goods and materials, and making sure that there are enough items on hand to meet customer demand without having too much excess inventory that ties up capital. A good inventory management program can help with distribution by providing real-time updates on inventory levels and locations, allowing companies to quickly and accurately fulfill customer orders. It can also assist with purchasing by tracking inventory levels and alerting staff when it's time to reorder supplies, helping to ensure that stock is always available when needed. Additionally, an inventory management program can assist with planning by providing data and analytics on sales trends, inventory turnover, and other key performance indicators. This information can help companies make informed decisions about which products to stock, when to order supplies, and how much inventory to keep on hand. Overall, a well-designed inventory management program can help companies save time, reduce waste, and improve efficiency.

Which of the listed is not a type of computer application?

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"Joy stick" is not a type of computer application. A computer application, also known as an application or app, is a program that runs on a computer and provides a specific set of functions for the user to perform. Examples of computer applications include Microsoft Word for word processing, Firefox for web browsing, and VLC media player for playing audio and video files. A joy stick, on the other hand, is a device used to control movement in computer games or simulations. It typically consists of a stick that can be moved in different directions to control the movement of an object on the screen. Joy sticks are not considered applications because they do not provide specific functions like a word processor or media player, but rather serve as input devices for other applications.

What is the shortcut key to "undo" last action on a Microsoft word page?

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The shortcut key to "undo" the last action on a Microsoft Word page is "Ctrl + Z". When you perform an action on a Word page, such as typing, deleting, formatting or copying text, you can undo that action by using the "Ctrl + Z" keyboard shortcut. This will revert the page to the state it was in before the action was performed. For example, if you accidentally delete a sentence, you can press "Ctrl + Z" to undo the deletion and restore the sentence. The "Ctrl + Z" shortcut is a very useful and commonly used feature in Microsoft Word as it allows you to quickly correct mistakes without having to manually undo each action. It can be used multiple times to undo several actions in a row. If you want to redo an action that was previously undone, you can use the "Ctrl + Y" keyboard shortcut. In summary, the "Ctrl + Z" keyboard shortcut is used to undo the last action performed on a Microsoft Word page, allowing you to easily correct mistakes and restore the previous state of the page.

The delete permission allows one to ____________

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The delete permission allows someone to remove or delete files and directories. This means that if a user has the delete permission, they can get rid of files and folders that they have access to, and these files and folders will no longer be available on the system. This permission is typically used to allow users to clean up or manage their own files and directories, but it can also be used by system administrators to control access and prevent unwanted modifications or deletions.

Typically, an ATM is used for

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An ATM, or Automated Teller Machine, is typically used for withdrawing cash. It is a machine that allows customers of a financial institution to perform financial transactions, such as withdrawing cash, checking their account balance, or depositing money, without the need to visit a bank branch. ATMs are widely available and can be found in many public places such as shopping centers, airports, and gas stations. They provide customers with convenient access to their money 24 hours a day, seven days a week.

_______ is the process of finding errors and fixing them within a program.

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The process of finding errors and fixing them within a program is called debugging. When a program is being developed, it may contain errors, also known as bugs, that prevent it from functioning properly. Debugging is the process of identifying and fixing these errors. Debugging can involve a number of techniques, such as analyzing error messages, reviewing code, and stepping through the program line by line to find where errors occur. Once an error is identified, the programmer can make changes to the code to correct the issue. Compiling is the process of translating source code into machine code, which can then be executed. Execution is the process of running a program. Scanning, in the context of programming, typically refers to the process of analyzing code for security vulnerabilities rather than identifying and fixing errors. In summary, debugging is the process of identifying and fixing errors in a program, whereas compiling, executing, and scanning are different processes that serve different purposes in the development and operation of a program.

What is the full form of CU?

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The term "CU" can have different meanings depending on the context. Here are some possibilities: 1. Compound Unit: This term does not have a widely recognized meaning in the field of computing or technology in general. However, "compound" can refer to something that is made up of multiple parts, so in some cases, "CU" could be used to refer to a unit that is composed of several components. 2. Communication Unit: In some contexts, "CU" may refer to a Communication Unit. This could be a device or module that is responsible for handling communication between different components or systems, such as transmitting data between a computer and a peripheral device like a printer or scanner. 3. Computer Unit: "CU" could also refer to a Computer Unit, which may be a standalone computer or a component within a larger computer system. In this case, "CU" would generally refer to the main processing unit that is responsible for executing instructions and performing calculations. 4. Control Unit: In the context of computer architecture, "CU" most commonly stands for Control Unit. The Control Unit is a component within the CPU (Central Processing Unit) of a computer that is responsible for coordinating the flow of data between different parts of the CPU and executing instructions. The Control Unit is sometimes referred to as the "brain" of the CPU, as it is responsible for coordinating and directing the operations of the computer. So, to answer the question of what the full form of "CU" is, we would need to know the specific context in which the term is being used.

Which number base system is used by low level languages

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Low level languages, such as Assembly, C, and C++, use binary as the number base system. In a binary system, numbers are represented using only two digits: 0 and 1. This is in contrast to decimal, which uses 10 digits (0-9), or hexadecimal, which uses 16 digits (0-9 and A-F). Binary is used in low level languages because computers use binary internally to store and process data. At the lowest level, computer hardware operates using two states, on and off, which can be represented by binary digits. This makes binary a natural choice for low level programming languages that interact directly with the computer's hardware.

Files that maintain the hierarchical structure of the file system.

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The correct answer is "Directories." Directories are special files that organize the hierarchical structure of the file system by grouping related files together into named collections. They act like folders, allowing users to easily locate and access the files they need. Each directory can contain other directories (sub-directories) and files. For example, in a Windows system, the "C:\Users" directory contains a sub-directory for each user account on the computer, and each user account directory contains sub-directories for documents, pictures, music, etc. In short, directories allow us to maintain a structured and organized file system.

The function of an assembler is to _________

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The function of an assembler is to convert assembly language to machine language. Assembly language is a low-level programming language that is used to program computers and microprocessors. It consists of a series of instructions and operations that are written in human-readable text, and the assembler converts these instructions into machine code that the computer can understand and execute. The machine code is a series of binary digits (0s and 1s) that represent the instructions and operations in a form that the computer can process. In this way, the assembler acts as a bridge between the human-readable assembly language and the machine-readable machine code, allowing programmers to write code in a form that is easier for them to understand and debug, while still allowing the computer to execute the code efficiently.

Fire fox is an example of __________

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Firefox is an example of application software. Application software is a type of software that is designed to perform specific tasks for the user, such as creating documents, browsing the web, sending emails, etc. In other words, it is a program that is used to accomplish specific tasks and is meant to be used by the end-user, as opposed to system software, which is designed to run the computer itself and support the application software. Firefox is a web browser, which is a type of application software that allows users to access, browse and interact with websites on the Internet.

A light sensitive device that converts drawing, printed text or other images into digital form is

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The device that converts drawing, printed text or other images into digital form is called a scanner. A scanner works by using a light-sensitive sensor that captures the image of the document or picture being scanned. The image is then converted into a digital format, which can be saved to a computer or other digital storage device. Scanners are commonly used for a variety of purposes, such as scanning important documents, digitizing old family photos, and creating digital copies of artwork or other visual media. They are particularly useful for situations where a physical copy of a document or image is not practical or convenient, such as when sharing information over long distances or storing large amounts of data. Overall, a scanner is a valuable tool for anyone who needs to convert physical documents or images into digital form for easy access and storage.

The device primarily used to provide hardcopy is the?

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The device primarily used to provide hardcopy is the "printer". A printer is a device that produces a physical or hardcopy of electronic documents or images, typically on paper. It can be connected to a computer or other device through a cable or wireless connection, and it can print text, graphics, or images in black and white or color. Printers come in many different types, including inkjet, laser, and thermal, and they can be used in homes, offices, and other settings. Card readers, computer consoles, and CRTs (cathode ray tubes) are not primarily used to provide hardcopy. A card reader is a device used to read information from a magnetic stripe or chip on a plastic card, such as a credit card. A computer console is the part of a computer system that contains the keyboard, monitor, and other components used to interact with the computer. A CRT is an older type of display technology that was used in older computer monitors and televisions, but has largely been replaced by newer technologies such as LCD and LED displays.

Microsoft PowerPoint is a ________________ application

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Microsoft PowerPoint is a presentation software application. This means that it is a program used to create visual aids or slideshows that are intended to enhance a live presentation. It allows users to create and design professional-looking slides that can contain text, images, videos, charts, and graphs. These slides can be used to convey information, ideas, or messages in a clear and visually appealing way. PowerPoint is often used in business, education, and other settings where presentations are a common means of communication. It is not a graphing or gaming software, nor is it considered a productivity software in the same sense as a word processor or spreadsheet program.

The process of feeding instructions into the computer system is called

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The process of feeding instructions into a computer system is called "inputting." It involves providing data, commands, or other types of information to a computer system so that it can process and execute the instructions. When you input data or commands into a computer system, you typically use an input device such as a keyboard, mouse, or microphone to provide the information. The computer then processes the input data using its internal logic and algorithms, and generates an output based on the instructions it received. For example, when you type a document using a keyboard and input the data into a word processing software, the computer processes the text and generates an output in the form of a document that you can save, print, or share. In summary, inputting is the process of providing information or instructions to a computer system, which is then processed and executed by the computer to generate an output.

How many different values can a bit have?

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A bit is the smallest unit of digital information in computing, and it can have two possible values: 0 or 1. This is because a bit is used to represent a binary digit, which can be either on or off, true or false, or high or low. So, the answer is 2. To give an example, imagine a light switch that can either be turned on or off. We can use a bit to represent the state of the switch, where 0 represents the switch being off, and 1 represents the switch being on. In this case, a single bit is enough to represent the two possible states of the switch. Similarly, in computing, a single bit is enough to represent two possible states of any digital information.

What is a website main page called?

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The main page of a website is called the "Home page." It's the first page that you see when you visit a website, and it often contains an overview of the website's content, as well as links to other pages on the site. The Home page is like the front door of a house, welcoming visitors and guiding them to different parts of the website. You can think of it as the main hub for a website, where you can start exploring the site's content and find what you're looking for. So, when you're visiting a website and you want to get back to the main page, just look for the "Home" button or link.

Total types of data that can be read by document reader are

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Document readers are devices or software programs that can analyze and interpret written or printed text on a document. These devices can read different types of data from documents such as marks, handwritten and printed characters, and printed lines. Marks can include things like checkmarks or ticks that people might use to indicate a selection on a form or questionnaire. Handwritten characters are any letters, numbers or symbols that are written by hand, whereas printed characters are those that are produced by a printer. Printed lines refer to the lines of text that are printed on a page. Therefore, the correct answer is "all of the above" as document readers can read all of these types of data from documents.