Study Guide 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 binary code, which the CPU processes. The computer then converts the code back 'A' for display.

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

A faulty port

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

Clock speed

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

Hard drive

What is the recommended solution if a computer performs slowly?

Install additional RAM.

Where on a computer is the operating system generally stored?

Internal hard drive

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

Plotter

Which of these is not an input device?

Printer

What is the first step to performing hardware maintenance?

Turn off the computer and remove its power source.

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

Update the device driver.

What is the binary system?

a number system with two digits, 0 and 1

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

internal hardware problem

Which of these is an optical medium of storage?

Blu-ray disc

What determines the speed at which data travels?

Bus width

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

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

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

Fetch à decode à execute à store

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.

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

Projector

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.

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

solid state drive

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?

tablet

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

Desktop computers

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

Dynamic RAM (DRAM)

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

Voice synthesizer

When should a user consider restoring the operating system?

When programs or apps do not start properly

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 RAM

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

memory card

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

platform

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

random access memory (RAM)

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

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

the control unit and the arithmetic logic unit