CHAPTER 3 MCQ

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Apr 3, 2024

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CHAPTER 3 MCQ 1. Which of the following is a characteristic of Random-Access Memory (RAM)? a. It stores data permanently even when the computer is turned off. b. It is non-volatile and retains data even when the computer is powered off. c. Adding more RAM has no impact on the computer's speed. d. It transfers data slower than the hard disk. Rationale: The passage explicitly mentions that RAM is "volatile," meaning it can store data if it is receiving power. When the computer is turned off, any data stored in RAM is lost. This distinguishes RAM from non-volatile storage devices like hard disks. Option B accurately reflects this characteristic of RAM. (Section 3.5) 2. What is the primary function of a 3-D printer? a. Building 2-D object models b. Layer by layer printing of items with a range of materials c. Building digital prototypes to conduct market research. d. Using computer simulations to assess the viability of a product. Rationale: The section describes how a 3-D printer creates a model layer by layer out of flexible elements like wax, metal, and various kinds of glass. The printer can print almost any 3-D object using this procedure, provided that the model was created using a computer. (Section 3.7) 3. What marketing tactic does Apple use to set its desktop computers above their competitors'? a. Cost leadership strategy

b. Standardization strategy c. Commoditization strategy d. Differentiation strategy Rationale: Apple sets itself above other computer manufacturers by not using the same open standards. Apple can create and produce a product that is distinctive and difficult to replicate because to its innovative strategy. Apple can raise the price of their computers because they have produced what many believe to be a better product. (Section 3.9) 4. What contributes to improving the speed of a computer? a. Extending the electrons' travel distance within a circuit. b. Using integrated circuits that are more widely spaced and larger. c. Circuits become smaller and being stacked on a single chip. d. Slowing down the processing speed of integrated circuits. Rationale: The section states that by reducing the distance that electrons must travel to complete a circuit, hardware for computers can operate faster. The speed of computing equipment has consistently increased thanks to engineers' efforts to shorten circuits and pack more circuits onto integrated circuits, which are chips. (Section 3.6) 5. What is the primary advantage of solid-state drives (SSDs) compared to hard disks? a. Lower cost b. Heavier weight c. Slower speed d. Absence of moving parts Rationale: The article emphasizes how SSDs employ flash memory rather than disks, which makes them significantly lighter and faster than hard drives. Because SSDs don't have any moving parts, they are also thought to be more dependable. 6. How were personal computers initially connected to digital networks? a. Through the motherboard's included Ethernet network ports.

b. Using CDs and other detachable media, such as USB drives. c. Through the motherboard's integrated wireless networking features. d. By adding an expansion card known as a Network Interface Card (NIC). Rationale: According to the article, network connections for personal computers were first made possible by installing an extension card on the machine. NICs, or network interface cards, were the name given to these cards. (Section 3.3) 7. What is the term for a set of eight bits in computing, and how is it often connected to a character? a. Word size: the equivalent of one keystroke from a keyboard. b. Binary size: shows a computerized smooth wave pattern. c. Byte: symbolizes a single keystroke character. d. Digit size: represents the absence of an electronic signal. Rationale: A byte is a collection of eight bits, which means that you should conceive of a byte as a single character that you can type on a keyboard. (Section 3.2) 8. What does the computing industry term "Moore's Law" refer to?

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a. The prediction is that every two years, computing power will halve. b. The observation that microprocessor transistor counts double annually . c. The idea that the cost of computers will drop linearly. d. It is recognized that Moore's Law has only been valid for ten years. e. The belief that processing power doesn't change over time. Rationale: Moore's Law describes the finding that the number of microprocessor transistors doubles annually, enabling the creation of processors with more power at lower costs. (Section 3.4) 9. Wireless technologies began to dominate in the early 1990’s. a. True b. False Rationale: Wireless technologies began to dominate in the early 2000’s (Section 3.3) 10. Which of the following is not included as an output device? a. Monitor b. Projector c. Keyboard d. Speakers e. Printers. Rationale: Keyboard is primarily an input device because it allows to input data right into the computer. (Section 3.7)

11. What is the main factor controlling the sale of factors computers? a. Technical Features b. Brand Recognition c. Manufacturing Methods d. Profit Margins e. Price Rationale: With minimal difference between models and makers, personal computers have become commodities. Price is the main element influencing the selling of personal computers. (Section 3.9) 12. Canada contributed 14.3 million tons of waste to the global e- waste problem in year 2012. a. True b. False Rationale: Canada is a large contributor to the e waste problem. It was released by Statistics Canada year 2012. (Section 3.9) 13. What type of storage is a hard disk? a. Volatile Storage b. Non-volatile Storage c. Temporary Storage d. Random Access Memory e. Cache Memory Rationale: Most of the personal computers used a hard disk for long term data storage. Hard drive is considered as non-volatile storage since the data on it is retained when the computer is powered down and accessible upon restart.

14. How can QuickPath Interconnect help multi-core processors run faster on the CPU? a. By increasing RAM capacity b. By directly communicating with the hard drive c. By minimizing communication with RAM and the hard drive d. By enlarging the CPU cache size e. By improving the algorithm for program data usage Rationale: CPU speeds are increased by QuickPath Interconnect because it reduces the requirement for the processor to interface directly with RAM or the hard drive. (Section 3.4) 15. Which wireless technology standard aside from USB is used to link input and output devices to computers? a. Ethernet b. Wi-Fi c. Bluetooth d. NFC e. HDMI Rationale: Bluetooth was invented 1994. Bluetooth exchanges data over short distances of 10 meter up too 100 meters using radio waves. (Section 3.7)

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