The use of visual display unit was a major breakthrough in the.

here are the solutions to the questions: 1. The use of visual display unit was a major breakthrough in the. Visual Display Units (VDUs) became prominent with the development of integrated circuits, which characterized the third generation of computers. C. third generation 2. In hexadecimal system, D is equivalent to In the hexadecimal system, A=10, B=11, C=12, D=13, E=14, F=15. B. 13 3. A teacher computed the average score of students in a given test. The result of the computation describes When data (raw scores) are processed (averaged) to provide meaning, they become information. B. information 4. The sum of 1102 and 1012 is a Assuming these are decimal numbers: 1102 + 1012 = 2114. If they are binary numbers: 1102_binary & is not a valid binary number (contains '2') \\ 110_2 &= 4+2 = 6 \\ 101_2 &= 4+1 = 5 \\ 6+5 &= 11 Given the options, it's likely a typo and they are decimal numbers or the question is flawed. If it's a typo and meant to be binary, none of the options fit. Assuming it's a simple addition of numbers as they appear, the options are also not direct sums. Let's re-evaluate if they are in a different base. If they are base 10, 1102 + 1012 = 2114. None of the options match this. If they are meant to be binary numbers 110_2 and 101_2: 110_2 = 1 · 2^2 + 1 · 2^1 + 0 · 2^0 = 4 + 2 + 0 = 6 101_2 = 1 · 2^2 + 0 · 2^1 + 1 · 2^0 = 4 + 0 + 1 = 5 6 + 5 = 11. Converting 11 to binary: 1011_2. None of the options are 1011_2. Let's assume the numbers are meant to be 110_2 and 101_2 and the options are decimal. Then the sum is 11. If the numbers are 110_2 and 101_2 and the options are binary: 110_2 + 101_2 = 1011_2. Option A is 1101_2, B is 1100_2, C is 11002_2, D is 10112_2. None match. Given the context of data processing, it's possible these are meant to be numbers in a different base or there's a typo in the question or options. However, if we consider the options as decimal numbers, and the question is asking for a sum, it's highly ambiguous. Let's assume the question intended to ask for the sum of 110_2 and 101_2 and the answer should be in binary. The sum is 1011_2. None of the options are 1011_2. If we assume the numbers are 110_2 and 101_2 and the options are decimal, the sum is 11. None of the options are 11. Given the options, there might be a misunderstanding of the question or a typo. However, if we consider the options as potentially representing binary numbers, and the question is about adding two numbers, it's problematic. Let's re-examine the options: A. 11012 B. 11002 C. 11002 D. 10112. These look like binary numbers with a '2' at the end, which is incorrect notation for binary. If the '2' is a subscript for base 2, then options C and D are invalid as they contain '2'. If we ignore the '2' at the end and assume they are binary numbers: A. 1101_2 = 8+4+1 = 13 B. 1100_2 = 8+4 = 12 C. 1100_2 = 8+4 = 12 D. 1011_2 = 8+2+1 = 11 If the question meant to ask for the sum of 110_2 and 101_2, the sum is 1011_2, which is 11 in decimal. Option D, if interpreted as 1011_2, would be the correct binary representation of 11. The trailing '2' is likely a typo for the base subscript. D. 10112 (Interpreting 10112 as 1011_2) 5. One advantage of the first generation computer is First-generation computers were characterized by their use of vacuum tubes, which generated a lot of heat. They were not known for being portable or having efficient processing. C. heating effect (This is a disadvantage, not an advantage. The question might be flawed or asking for a characteristic. If it's asking for a characteristic, heating effect was prominent. If it's asking for an advantage, none of the options are correct. Given the options, it's likely asking for a characteristic or a trick question where the "advantage" is that it had* a heating effect, which is not an advantage. Let's assume it's asking for a characteristic.) 6. Which of the following does not support wireless communication? A GSM phone, mouse, and router all support wireless communication. A computer does not inherently support wireless communication without additional hardware (like a Wi-Fi card). However, among the options, a computer itself is a broad category. A mouse can be wired or wireless. A router is specifically for networking, often wireless. A GSM phone is wireless. Let's re-evaluate. A computer can support wireless communication. A mouse can be wireless. A router is often wireless. A GSM phone is wireless. The question is "does not support wireless communication". This is tricky. If we consider a basic computer without any wireless adapters, it wouldn't support wireless communication. However, a modern computer almost always has Wi-Fi. Let's look at the options again: A. GSM phone B. mouse C. router D. telephone. A GSM phone is wireless. A router is wireless. A mouse can be wireless. A traditional landline telephone does not support wireless communication. If "telephone" refers to a landline, then it's the answer. If it refers to a mobile phone, it's wireless. Given the context of other options, "telephone" likely refers to a landline. D. telephone 7. A saving document B. changing information detectable by an observer C. data upload to server D. transfer of information between devices This question seems incomplete or a continuation of a previous question. Based on the options, it looks like it's asking for a definition or an example of something. Without the full question, it's hard to answer definitively. However, option B "changing information detectable by an observer" is a common definition for information processing. B. changing information detectable by an observer (Assuming it's related to information processing) 8. A chart graphical representation of A chart is a graphical representation of data. A. data 9. The process of gathering facts and statistics from the different sources known as data The process of gathering facts and statistics is known as data collection. B. collection 10. By default numeric value in a worksheet are... By default, numeric values in a spreadsheet worksheet are right-aligned. C. right aligned 11. The diagram in figure depicts... The image for the diagram is not provided, so this question cannot be answered. 12. The mal-ware which appear as an harmless object but attack it victims at the lightest opportunity is called. Malware that appears harmless but contains malicious code is known as a Trojan horse. B. Trojan horse 13. Virus effect can be prevented by... Installing and updating anti-virus software is a primary method to prevent virus effects. A. installing and updating anti-virus 14. Which of the following sets are available when creating a table in "Design View" in micro-soft Access? In Access Design View for tables, you define the field name, data type, and field property. C. field name, data type and field property 15. Indiscriminate end in go fun solicited e-mail to many addresses is known as. Unsolicited bulk email sent to many addresses is known as spamming. D. spamming 16. In computer maintenance, the dampen material can be used on the following devices except... Damp material should not be used on electronic components like a DVD lens, keyboard, or mouse as it can cause damage. A screen can be cleaned with a slightly damp, lint-free cloth. The question asks for "except", implying which one can be used. This is poorly phrased. If it means "which of these should NOT be cleaned with damp material", then all except the screen are sensitive. If it means "which of these can be cleaned with damp material", then it's the screen. Let's assume it means "which of these is an exception to the rule of not using damp material", meaning it can be cleaned. D. screen 17. Another term for uniform resources locator (URL) is A URL is essentially a web address. B. IP address (This is incorrect. An IP address is a numerical label. A URL is a web address. However, among the given options, "web address" is the closest common term. "IP address" is a component that a URL might resolve to, but not another term for URL itself. Let's re-evaluate. A URL is a specific type of Uniform Resource Identifier (URI). It's commonly called a web address. None of the options are "web address". An IP address is a numerical label assigned to each device. A domain name is part of a URL. A data link is a network connection. Given the options, this is a poorly formulated question. If forced to choose the closest* related concept that is often confused, it might be IP address or domain name. However, neither is "another term". Let's assume it's looking for a related concept that is often associated with locating resources. A domain name is part of a URL. An IP address is what a domain name resolves to. Let's go with the most direct, though still imperfect, association.) C. domain name (A domain name is a human-readable part of a URL, e.g., google.com in www.google.com. It's not "another term" for URL, but it's a key component.) 18. The website"www.google.com" indicate that Goggle is A commercial organization. Websites like google.com are typically run by commercial entities. A. commercial organization 19. While typing, series of letter were highlighted and keyboard key combination "Ctrl + B" was executed. The highlighted letters would be Ctrl + B is the keyboard shortcut to apply bold formatting. D. bold 20. Which of the following formula would calculate the average score of the student in mathematic? To calculate the average, you sum the scores and divide by the count. The AVERAGE function does this. The options show cell ranges. AVERAGE(C2:C6) would average the values in cells C2 through C6. A. AVERAGE(C2:C6) 21. Which of the following formula would calculate the total score of DEBORAH in five subject. To calculate the total score, you use the SUM function. Assuming Deborah's scores are in a range, SUM(B2:B6) would sum cells B2 to B6. SUM(A2:A6) would sum A2 to A6. SUM(B6:F6) would sum across row 6 from B to F. Without knowing the exact layout, SUM(B2:B6) is a plausible option if her scores are in a column. Let's look at the previous question 1(B) and 1(D) from the previous image, which mentioned Deborah's scores. In that context, her scores were in a row (B2:E2). If this question refers to a similar setup but for "five subjects", and the options are column-based, it's inconsistent. However, if we assume a standard layout where a student's scores are in a row, and the options are column-based, it's problematic. Let's assume the options are referring to a different table or a general case. SUM(B2:B6) sums a column. SUM(A2:A6) sums another column. SUM(B6:F6) sums a row. If Deborah's scores are in a row, SUM(B6:F6) is the most likely format for summing five subjects in a row. C. SUM(B6:F6) 22. A computer professional who studies who studies an existing system with a view to evolving a computer-based system from it is called? This describes the role of a Systems Analyst. D. system analyst 23. A computer professional who is a person responsible for the installation, configuring, upgrade, administration, monitoring and maintenance of a database is called? This describes a Database Administrator (DBA). C. Database Administrator 24. One advantage of information processing is that... Information processing helps in decision-making by providing organized and meaningful data. A. face-to-face interaction among staff may be reduced (This is not a primary advantage. Information processing aims to make information useful. Option D "It encourages the training/retraining of staff" is also not a primary advantage. Option B "Initial investment cost can be high" is a disadvantage. This question is poorly phrased. Let's assume it's looking for a benefit, even if indirect. Information processing can streamline operations, potentially reducing the need for some face-to-face interactions for data sharing.) A. face-to-face interaction among staff may be reduced (This is a weak answer, but the others are either disadvantages or not direct advantages.) 25. When information is conveyed from one space to another, it is referred to as information. When information is conveyed from one space to another, it is referred to as transmission. C. transmission 26. Is a mode of receiving information through print alone with out sound or voice. This describes visual information, specifically through print. B. Visual 27. Which of the following is an example of a soft-ware A. operating system B. keyboard C. joy-stick D. mouse An operating system is a type of software. Keyboard, joystick, and mouse are hardware. A. operating system 28. Computer software is classified into parts. A. 7B.5 C.2 D.4 Computer software is broadly classified into two main types: system software and application software. C. 2 29. Word processing, spreadsheet, database, graphics and presentation soft-ware are all examples of? These are all types of application software, designed for specific user tasks. A. Application software 30. The two mean of transmitting information are... The two main means of transmitting information are ancient and modern. This is a very broad classification. Other common classifications are wired/wireless, analog/digital, etc. Given the options, "ancient and modern" is presented as a pair. C. Ancient and Modern 31. Which of the following source if information is received by the user in visual mode only. A television, radio, and computer can all provide visual information. However, a radio is primarily audio. A television and computer are visual. The question asks for "visual mode only". This is tricky. A photograph is purely visual. A television and computer can be visual, but also audio. C. photograph 32. A major function of system soft-ware. A major function of system software is to manage files and resources, including file organization. C. file organization 33. The operation of a computer and peripheral is attached to it controller by A. application B. hardware C. live ware D. system software The operation of a computer and its peripherals is controlled by hardware (e.g., device drivers, which are software but interact directly with hardware). The question is phrased "attached to it controller by". This is ambiguous. If it means "controlled by", then it's software (drivers) interacting with hardware. If it means the physical connection, it's hardware. Given the options, "hardware" is the most direct answer for the physical control. B. hardware 34. Is an example of an operating system. MS Excel is a spreadsheet. RAM is memory. CMS is Content Management System. MS-DOS is an operating system. D. MS-DOS Send me the next one 📸