Exam 6: Inside Computers and Mobile Devices: Exploring the Components

COGNITIVE ASSESSMENT You are going to purchase a mass-produced computer from your local computer store. Which of the following is likely a component you can customize?

A DC adapter converts the DC power from the wall outlet into the AC power that the peripheral requires.

COGNITIVE ASSESSMENT What type of circuit board is used to convert computer output into a video signal that displays an image on a monitor?

A byte is uninformative because it provides only enough different combinations of 0s and 1s to represent 8 individual characters.

Programs and app that you no longer need may consume a significant amount of space on your computer or mobile device.

COGNITIVE ASSESSMENT When you examine a computer chip under a microscope, what will you see?

COGNITIVE ASSESSMENT Which component allows processors to perform at faster rates than those processors that do not have this component?

You should read reviews for programs and apps before you download and/or install them to make sure the program or app will meet your needs.

Many batteries on computers and mobile devices can be charged only a certain number of times before they fail completely.

COGNITIVE ASSESSMENT Your business is looking to rely on cloud computing services to specify the applications, security settings, and computing resources available to employees on their computer desktops. What is the term for this?

A(n) ____________________ is the basic storage unit in memory.

A can of compressed air can be used to free a keyboard from any dirt and debris that might interfere with the operation of the keys.

A processor contains small, high-speed storage locations, called ____________________, that temporarily hold data and instructions.

The faster the clock speed, the more of these the processor can execute per second. What are they?

COGNITIVE ASSESSMENT Which of the following is the least likely to need additional cooling?

In the machine cycle, decoding is the process of obtaining a program instruction or data item from memory.

Which of the following types of memory modules, such as that shown in the accompanying figure, positions the pins on opposite sides of the circuit board so they do not connect and thus form two sets of contacts?

COGNITIVE ASSESSMENT Where do RAM chips usually reside within a computer?

COGNITIVE ASSESSMENT What component converts the AC power in a wall plug to the DC power required by a computer?

Buses transfer bits from input devices to memory, from memory to the processor, from the processor to memory, and from memory to output or storage devices.