Introduction To Computer Science Intersemester Test June 2009

The correct answer is CPU. CPU stands for Central Processing Unit, which is the main component or "brain" of a computer. It is responsible for performing all of the information processing tasks in a computer system. The CPU executes instructions, performs calculations, and manages the flow of data within the computer. Without a CPU, a computer would not be able to function properly.

A keyboard is considered an input device because it allows the user to input data or commands into a computer system. It consists of a set of keys that are used to type letters, numbers, and symbols. When a key is pressed, it sends a signal to the computer, which then processes the input accordingly. Keyboards are commonly used in conjunction with monitors to interact with computer systems and perform various tasks such as typing documents, navigating through software, and executing commands.

The correct answer is ctrl+c. This shortcut is used for copying selected text or objects. When you press ctrl+c, the selected content is copied to the clipboard, allowing you to paste it elsewhere using the ctrl+v shortcut. This is a commonly used shortcut in various applications and operating systems for quickly duplicating content.

The correct answer is "world wide web". The term "world wide web" refers to a system of interconnected documents and other resources, linked by hyperlinks and URLs. It is a global information system that allows users to access and share information through the internet. The term "world wide web" is often abbreviated as "www" and is commonly used in website addresses.

Ctrl+P is the shortcut used for printing. This shortcut is commonly used in various applications and operating systems to quickly open the print dialog box or directly send the current document or file to the printer. By pressing Ctrl+P, users can easily access the necessary printing options and settings without having to navigate through the menu. It provides a convenient and efficient way to initiate the printing process.

HTML stands for Hyper Text Markup Language. It is the standard markup language used for creating and structuring the content on web pages. It is responsible for defining the structure, layout, and formatting of the elements within a webpage. HTML uses tags to define different types of content such as headings, paragraphs, links, images, and more. It is the foundation of the World Wide Web and is essential for creating and displaying web content.

The correct answer is CPU. The CPU, or Central Processing Unit, is the main component or "brain" of a computer. It is responsible for performing all of the information processing tasks in a computer system. The CPU executes instructions, performs calculations, and manages the flow of data within the computer. It is often referred to as the "brain" of the computer because it controls and coordinates all of the other hardware components.

The correct answer is "ctrl+v" because it is the shortcut used for pasting. When you have copied something, such as text or an image, using the "ctrl+c" shortcut, you can then use "ctrl+v" to paste it into a different location or document. This shortcut is widely used across different operating systems and applications to quickly and easily paste content.

LAN stands for local Area Network. It is a network that connects computers and other devices within a limited area such as a home, office, or building. LANs allow for the sharing of resources such as printers and files, and enable communication between devices. This acronym is commonly used in the field of networking to refer to a specific type of network.

A printer is considered an output device because it produces a physical copy or hard copy of digital information. It takes electronic data from a computer or other device and transfers it onto paper or other media. This makes it an example of an output device as it provides an output in the form of a printed document.

A disk drive is a hardware device that is used to read information from, or write information to, a disk. It is not used for printing sheets of paper, displaying information on a screen, or calculating numbers. Therefore, the correct answer is "to read from or write information to a disk."

The correct answer is ctrl+z. This keyboard shortcut is commonly used to undo the last action performed. By pressing ctrl+z, the user can revert any changes made and restore the previous state of the document or file. It is a convenient and widely recognized shortcut for undoing actions in various software applications.

The shortcut "ctrl+z" is used to undo the last action. By pressing these keys simultaneously, the user can revert the most recent action or command they performed. This shortcut is commonly used in various software applications and operating systems to quickly undo any unintended or incorrect changes made by the user.

Ram memory is measured in megabytes (mb), which is a unit of digital information storage. It represents the amount of data that can be stored in the random-access memory (RAM) of a computer. The other options, kbs, mhz, cms, and hz, are not used to measure memory but instead represent kilobits per second (kbs), megahertz (mhz), centimeters (cms), and hertz (hz) respectively.

Acrobat Reader is the correct answer because it is a widely used program specifically designed to open and view PDF files. It is developed by Adobe and provides various features such as zooming, searching, and printing PDF documents. Other options like PDFer, pdf opener, winzip, and winrar are not commonly used or specifically designed for opening PDF files, making them incorrect choices.

The given answer "keys" is correct because it accurately represents the letters, numbers, and symbols found on a keyboard. The other options mentioned, such as "numbers," "symbols," and "accessories," are all subsets of the main category "keys." The option "logs" is unrelated to the topic of letters, numbers, and symbols on a keyboard, making it an incorrect choice.

Spam refers to unsolicited and unwanted emails that are sent to a person's inbox, typically containing advertisements. These emails are considered trash because they clutter the inbox and can be annoying or potentially harmful. Unlike legitimate emails, spam emails are not requested or expected by the recipient. They often come from unknown senders and may contain misleading or fraudulent information. Therefore, the correct answer is spam.

Shauna would most likely use a desktop publishing program to design the invitation for the Home Economics Club's awards luncheon. Desktop publishing programs are specifically designed for creating and formatting documents with complex layouts, such as invitations, brochures, and flyers. These programs offer a wide range of tools and features to customize the design, including various fonts, images, and graphics. They also provide precise control over the placement of text and images, allowing Shauna to create an aesthetically pleasing and professional-looking invitation.

The correct answer is "Numeric Keyboard" because it accurately describes the keys on a keyboard that contain the numbers 0-9. This type of keyboard is specifically designed to input numerical data and is commonly used in various applications such as calculators, accounting software, and data entry tasks that require frequent number input.

The correct HTML code to insert a heading is "heading 1". This code is used to create the largest and most important heading in a webpage.

If the computer sorted the database records in ascending order by name, the cereal that would appear first in the sorted database is "Almond Delight". This is because "Almond Delight" comes before "Banana Nut Crunch", "Fruit Loops", and "Rice Krispies Treat" alphabetically.

A CRT (Cathode Ray Tube) is a display screen designed as an output device for a computer. It uses a vacuum tube with an electron gun to create images on a fluorescent screen. This technology was commonly used in older computer monitors and televisions.

A cursor is a highlighted or bright line or mark that indicates where the next letter or character will appear when inputting information. It helps the user to identify the position on the screen where they can type or make changes. The cursor can be a blinking line or any other visual indicator that shows the current location of input.

The given correct answer is "HARDWARE". Hardware refers to the physical components of a computer system, including the screen/monitor, keyboard, CPU, and storage devices. These components are tangible and can be physically touched or seen. Software, on the other hand, refers to the programs and instructions that run on the hardware. Accessories are additional items that can enhance the functionality of the computer system. Therefore, "HARDWARE" is the correct answer as it accurately describes the physical equipment of a computer.

HTML stands for Hyper Text Markup Language. It is a standard markup language used for creating and structuring the content on web pages. HTML uses tags to define and format the elements of a webpage, such as headings, paragraphs, images, links, and more. It is the backbone of the World Wide Web and is essential for creating and displaying web content.

The correct way to represent the number 30 in binary is 11110. In binary representation, each digit can have a value of either 0 or 1. Starting from the rightmost digit, each subsequent digit represents a power of 2. Adding up the values of each digit gives the decimal equivalent. In this case, the binary number 11110 translates to (1 * 2^4) + (1 * 2^3) + (1 * 2^2) + (1 * 2^1) + (0 * 2^0) = 30.

The given answer, Magnetic Tapes, is the correct answer because it is stated in the passage that one type of storing device could store as much data as 10,000 punch cards. This indicates that magnetic tapes had a much higher capacity compared to punch cards. Additionally, the passage mentions that the punch card was gradually replaced by better and more efficient devices, implying that magnetic tapes were one of those improved devices that gained instant success. Therefore, magnetic tapes became the most popular way of storing computer data until the mid-1980s.

The correct way to represent the number 17 in binary is 10001. In binary, each digit represents a power of 2, starting from the rightmost digit as 2^0. Therefore, the binary representation of 17 is obtained by adding the powers of 2 that sum up to 17, which are 16 (2^4) and 1 (2^0). The remaining digits are filled with zeros.

The correct answer is "lower case letters" because small letters refer to the lowercase letters on a keyboard. These are the letters that are not capitalized and are typically used for regular text input. Upper case letters, on the other hand, refer to the capitalized letters. Icons, special keys, and small letters are not relevant to the question and can be disregarded.

The correct extension to open a page that can be opened by a browser is .html. This extension is commonly used for web pages and stands for Hypertext Markup Language, which is the standard language for creating web pages. Browsers are specifically designed to interpret and display HTML content, so using the .html extension ensures that the page can be properly rendered and viewed in a browser.

A CRT (Cathode Ray Tube) is a display screen that is commonly used as an output device for a computer. It uses a cathode ray tube to produce images on the screen. This technology was widely used in older computer monitors and televisions.

The correct answer is "imp pnt" which stands for "Print Screen" or "PrtScn". This key is used to capture an image of the screen and save it to the clipboard. Once captured, the image can be pasted into an image editing program or document.

The correct answer is "imp pnt". This is short for "Print Screen", which is a key on the keyboard that allows users to capture an image of the screen. When the Print Screen key is pressed, it takes a screenshot of the entire screen and saves it to the clipboard. Users can then paste the screenshot into an image editing program or document.

The correct HTML tag to format text is the text tag. This tag is used to indicate that the enclosed text should be displayed as bold.

The correct HTML tag to insert an image is the "img" tag. This tag is a self-closing tag that does not require a closing tag. It is used to embed an image into a webpage by specifying the source of the image using the "src" attribute. Additionally, the "alt" attribute can be used to provide alternative text for the image, which is displayed if the image cannot be loaded.

The acronym "LOL" stands for "laughing out loud." This term is commonly used in online communication to indicate that something is funny or amusing. It is often used in response to a joke or humorous situation.

Paint is a program that can open files with the .jpg extension.

A wireless router is a device that allows multiple devices to connect to a network wirelessly. It acts as a central hub, transmitting data between the devices and the internet. Unlike a network adapter or wireless adapter, which are used to connect a single device to a network, a wireless router enables multiple devices to connect simultaneously. A transmitter is a generic term that can refer to various devices used to transmit signals, but it does not specifically describe a wireless router. A hard drive is a storage device and not related to networking.

The correct way to represent the number 9 in binary is 01001. In binary representation, each digit represents a power of 2 starting from the rightmost digit. The rightmost digit is 1, representing 2^0, and the second rightmost digit is 0, representing 2^1. The third rightmost digit is 0, representing 2^2. The fourth rightmost digit is 1, representing 2^3. Finally, the leftmost digit is 0, representing 2^4. Adding the values of the digits that are 1, we get 2^0 + 2^3 = 1 + 8 = 9.

The correct answer is "bus." In computer networking, a bus is a type of network connection method where all devices are connected to a single cable or line. This cable acts as a shared communication medium, allowing data to be transmitted between devices. This method is commonly used in local area networks (LANs) as it is simple and cost-effective.

The given correct answer, "Third Generation - 1964-1971," is supported by the information provided in the explanation. It states that the development of the integrated circuit, which happened during this time period, was a significant advancement in computer technology. The use of miniaturized transistors on silicon chips greatly improved the speed and efficiency of computers. Therefore, it can be inferred that this development marked the third generation of computers.

A network adapter is a device that allows a computer to connect to a network. It enables the computer to send and receive data over the network. This device is commonly used in both wired and wireless networks to provide network connectivity to the computer. It can be in the form of a physical card that is inserted into the computer's motherboard or a USB device that is plugged into the computer. The network adapter is responsible for translating data between the computer and the network, allowing the computer to access the internet or other devices on the network.

The given answer "column" is the correct one because it is the only word that relates to the vertical arrangement of letters in Excel. The other words, "book," "cell," "rows," and "spreadsheets," do not specifically pertain to the vertical orientation of letters.

Creating a word processing document can be used for various purposes such as developing a table of historical events, typing a letter to a friend, and writing an essay for history class. However, calculating the expenditures for a candy sale would typically require a spreadsheet or accounting software rather than a word processing document. Therefore, this task would not be accomplished by creating a word processing document.

The most ethical response would be "I can't copy it because it will break copyright laws." This response shows a commitment to following legal and ethical guidelines regarding the copying of programs. It acknowledges the potential consequences of copyright infringement and prioritizes adherence to the law over personal favors or promises.

The correct answer is punch cards. In the early days of computing, punch cards were commonly used as a form of input and external storage for data. These cards contained holes punched in specific positions to represent different characters or data. The UNIVAC I, being a first-generation computer, utilized punch cards as one of the primary means of interacting with the machine and storing data externally.

The correct HTML tag to format text is the "font" tag. This tag allows you to specify various formatting options such as font face, size, and color. In the given options, the first and second lines do not include any HTML tags, so they do not format the text. The third line includes the "font" tag with the specified attributes, making it the correct answer.

Processor speed is measured in MHz (megahertz). MHz is a unit of frequency that represents one million cycles per second. It is used to measure the clock speed of a computer processor, indicating how many instructions the processor can execute per second. A higher MHz value indicates a faster processor and generally results in better performance and faster processing of tasks.

A standard CD can hold up to 650MB of disk space. This is the most common capacity for CDs and is sufficient for storing audio files, software programs, and other data. CDs with this capacity are widely used for music albums, software installations, and data backups.

Vint Cerf is considered one of the fathers of the internet and is currently the vice president of Google. He played a crucial role in the development of the internet, co-designing the TCP/IP protocols that form the foundation of modern internet communication. His contributions have been instrumental in shaping the internet into what it is today.