Module 2 Chapter 3

If you 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?

'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?

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

When should a user consider restoring the operating system?

(a) when the programs or apps do not start properly (c) when the system slows down

In which format is data finally stored in computers?

Binary digits

Which of these is an optical medium of storage?

Blu-ray discs

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

Bottlenecking

Which of the following types of RAM needs to be constantly recharged to retain the contents?

DRAM (dynamic)

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 time

Declining free space on the hard drive

Which of the following devices is the easiest to upgrade, such as by adding RAM?

Desktop computers

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

False

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

False

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

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.

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?

He should make sure to bring a tablet.

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?

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

Manny copied a table from an MS Excel file, closed the file, and then pasted the table in an MS Word document. Where was the table stored after he copied it?

In the RAM

What is the recommended solution if a computer performs slowly?

Install additional RAM.

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

Plotter

Daniel wants to buy a computer to use for playing games after work. He loves racing games and wants to make sure his device 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

Which type of memory is permanently installed on your computer and attached to the motherboard?

ROM (read only memory)

Jennifer turns on her laptop and hears a series of beeps. What do they probably indicate?

Refer to your computer's documentation to determine what the beeps indicate, computer hardware may be experiencing a problem.

What performance specification does 2 GHz refer to?

Speed at which the processor executes instructions

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

Transfer contents to an external storage device.

The Unicode coding scheme supports a variety of characters including those for Chinese, Japanese, and Arabic languages.

True

What is the first step to performing hardware maintenance?

Turn off the computer and remove its power source.

What is the most common type of storage device for transferring files from one computer to another?

USB flash drive

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 is a necessary step in maintaining computer hardware?

Using a UPS or a surge processor

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

Voice synthesizer

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

a desktop computer

What determines the speed at which data travels?

bus width

A joystick is a pen-type input device used to draw and tap icons.

false

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

fetch decode execute store

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

hard drive

Where on a computer is the operating system generally stored?

internal harddrive

When considering a computer to purchase, which of the following factors involves the operating system of the computer?

platform

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

plug-and-play devices

Which of these is not an input device?

printer

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

projector

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 create an electronic copy of the certificate?

scanner

What type of hard drive has no moving parts, making it fast and durable?

solid state drive (SSD)

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.

true

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

true

Which of the following is classified as input device?

webcam mouse touchpad

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

a faulty port

What is the binary system?

a number system with two digits, 0 and 1

When a CPU executes instructions as it converts input into output, it does so with _____.

1. control unit2. arithmetic logic unit

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

Clock speed

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.

When Alice turned on her laptop this morning, the screen displayed only colorful horizontal lines. Which of the following is most likely to have a problem?

video card

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

true

what should you do if a headset plugged into your computer is not working properly?

verify that headphones or earbuds are not connected.make sure the volume is not muted and is turned up on the computer or mobile device.

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?

-verify that the monitor is turned on -verify that the video cable is connected securely to the computer and monitormake sure the power cables are plugged securely into the wall and the back of the monitor -the monitor is set to the wrong input source -might be faulty -problem may be w/ your computer's hardware or software configuration

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?

cloud storage