Module 3: Computer Hardware
Daniel wants to buy a desktop to use for playing games after work. He loves racing games and wants to make sure his laptop has all the specifications needed to run them smoothly and efficiently. Which of these factors should he consider?
- Processor core - some applications, especially games, have greater processor requirements - RAM capacity - it provides temporary storage that applications use to run smoothly
Alice stored a memory card in her wallet that had all the photographs of a recent trip she took. When she inserted the card into her laptop, her computer wasn't able to read it. Alice tried to access its contents on her other devices but could not. Based on this, which of the following is/are likely to be true?
- The memory card is damaged and storing it in a protective case could have avoided the damage - The memory card is damaged and its contents are permanently lost
When should a user consider restoring the operating system?
- When the programs or apps do not start properly - When the system slows down
In which format is data finally stored in computers?
Binary digits
Which of the following refers to a condition in which the CPU performs well but the bus speed is slow?
Bottlenecking
Manny copied a table from a MS Excel file, closed the file, and then pasted the table in an MS Word document. Where did the copied table get stored after he copied it?
In the RAM
What is the correct way to update a device driver?
Run the update within the OS or the latest software from the device manufacturer's website
What device do e-learning applications usually use to help users with visual impairment read digital content?
Voice synthesizer
Which of the following is a game controller that is held with both hands and used to control movement of on-screen objects by pressing buttons and moving hardware components?
gamepad
What is the correct sequence of processing instructions in a machine cycle?
1. fetch 2. decode 3. execute 4. store
What are the two important components of CPU that help in processing the input into output?
Control Unit and Arithmetic Logic Unit
Which of these, though not equally portable, is most powerful and usually easier to upgrade than others?
Desktop computers
T/F: All-in-one computers are easier to service and upgrade but occupy more space than desktop computers.
False
T/F: Most computers can operate normally in extreme temperatures and withstand high humidity and power fluctuations.
False
Surya's computer monitor display does not seem to work despite repeated attempts to fix the issue. Which of the following is most likely to be causing display problems?
Faulty power or video cable
Rocco runs a software firm that creates database management systems for other businesses. How can he ensure that his employees' computers remain protected from viruses and other malware?
He should have periodic anti-virus scanning and software upgraded on all computers
Where on a computer is the operating system generally stored?
Internal hard drive
What performance specification does 2 GHz refer to?
Speed at which the processor executes instructions
T/F: A CPU converts the data entered through the keyboard into output displayed on the monitor.
True
T/F: A device driver is a program that controls a device attached to the computer.
True
T/F: Peripheral devices, like a USB flash drive, are generally connected to your computer through ports.
True
T/F: We can use Unicode coding scheme to support a larger variety of characters including Chinese, Japanese, and Arabic.
True
Alessandro wants to use his desktop computer to video chat with his mother. What hardware does he need to accomplish this?
Use his webcam and speakers so that he and his mother can both see and hear each other
Which of the following factors can affect processor performance of a CPU?
clock speed & bus width
Which of the following is/are classified as input device(s)?
touchpad, webcam, mouse
