Exam 1

true

A CPU converts the data entered through the keyboard into output displayed on the monitor.

true

A device driver is a program that controls a device attached to the computer.

false

A joystick is a pen-type input device usedto draw and tap on icons.

Use his webcam and speakers so that he and his mother can both see and hear each other.

Alessandro wants to use his desktop computer to video chat with his mother. What hardware does he need to accomplish this?

He should use a scanner, which would convert an image into an electronic file.

Alex needs to email his graduation certificate to a prospective employer. He has only physical copies of the certificate. What device could he use to perform the task?

- 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.

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?

false

All-in-one computers are easier to service and upgrade but occupy more space than desktop computers.

- RAM capacity: it provides temporary storage that applications use to run smoothly - Processor core: some applications, especially games, have greater processor requirements

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?

binary digits

In which format is data finally stored in computers?

Dynamic RAM (DRAM)

In which of the following storage device(s) does memory need to be constantly recharged to retain the contents?

true

It is advised to fully charge a laptop before using it for the first time.

tablet

Jack needs a convenient way to browse the Internet, read emails, and store basic data when he travels. Which of the following would be the best option for him?

cloud storage

Jason takes many photographs on his smartphone while on vacation in Italy.If Jason wants to access these pictures across multiple devices, including his computer, smartphone, and tablet, where should he store them?

Declining free space on the hard drive

Jennifer recently bought a new computer to type a new manuscript she's been working on. She also stored a lot of movies on it to watch during her free time. Though the performance was good at the beginning, it deteriorated quickly over a small period of time. Which of these is the most likely cause?

in the RAM

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?

false

Most computers can operate normally in extreme temperatures and withstand high humidity and power fluctuations.

true

Peripheral devices, like a USB flash drive, are generally connected to your computer through ports.

He should have periodic anti-virus scanning and software upgraded on all computers.

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 use an external hard drive to store the data because the amount of data he needs to store is quite large.

Ryan wants to install a new operating system on his laptop, but first he needs to safely store all his data - over 80 GB - so he doesn't lose any of his files. How should Ryan back up all his data?

faulty power or video cable

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?

Increase the RAM on her laptop so that more space for temporary storage of data is available, hence, increasing the performance

The hard disk drive on Joyce's laptop can store up to 500 GB of data. She usually only saves official documents and a few songs that she listens to while she works. However, when she uses more than three applications at the same time, her laptop responds more slowly. What should she do to optimize her storage?

Transfer contents to an external storage device.

To resolve major computer issues, computer professionals often suggest restoring the operating system. Which of the following should happen before this step?

true

We can use Unicode coding scheme to support a larger variety of characters including Chinese, Japanese, and Arabic.

control unit and the arithmetic logic unit

What are the two important components of CPU that help in processing the input into output?

faulty port

What could cause an external drive, like a USB flash drive, to not be recognized when plugged into a computer?

bus width

What determines the speed at which data travels?

voice synthesizer

What device do e-learning applications usually use to help users with visual impairment read digital content?

plug-and-play devices

What devices do not need device drivers to be manually installed, and start to function as soon as they are connected to a computer?

Fetch decode execute store

What is the correct sequence of processing instructions in a machine cycle?

Run the update within the OS or the latest software from the device manufacturer's website.

What is the correct way to update a device driver?

turn off the computer and remove its power source

What is the first step to performing hardware maintenance?

- uninstall programs and apps that are not needed - purchase additional RAM

What is the recommended solution if a computer performs slowly?

Speed at which the processor executes instructions

What performance specification does 2 GHz refer to?

plotter

What printer is commonly used to produce high-quality professional drawings such as architectural blueprints?

- when the programs or apps do not start properly - when the system slows down

When should a user consider restoring the operating system?

internal hard drive

Where on a computer is the operating system generally stored?

projector

Which is the most suitable device to use in a classroom or a conference room to deliver presentations?

- bus width - clock speed

Which of the following factors can affect processor performance of a CPU?

gamepad

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?

using a UPS or surge processor

Which of the following is a necessary step in maintaining computer hardware?

- mouse - webcam - touchpad

Which of the following is/are classified as input device(s)?

bottlenecking

Which of the following refers to a condition in which the CPU performs well but the bus speed is slow?

- software and apps you intend to use - storage capacity - platform or operating system - form factor

Which of the following should you take into consideration when purchasing a computer?

- optical media - external hard drive

Which of the following types of storage is/are used to transfer data from one computer to another?

hard drive

Which of these hardware components can you use to store videos?

blu-ray discs

Which of these is an optical medium of storage?

printer

Which of these is not an input device?

desktop computers

Which of these, though not equally portable, is most powerful and usually easier to upgrade than others?

desktop computer

Which type of a computer can be assembled using a monitor, a keyboard, a CPU, speakers, a printer and a mouse?

'A' is converted to its ASCII binary code and stored in the memory unit. Then it is converted back to 'A' for display.

While naming a file on the computer, if we press the key corresponding to letter A on the keyboard, what process is carried out inside the CPU to display the letter on the screen?