ITE 115- module 2

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. -- Computer converts the characters typed into its corresponding binary code (bits) for processing. Then it translates the bits back to their original format.

What concerns are there about open source programs?

Programmers will add malicious code to damage a user's system. -- Some have concerns about open source code that unscrupulous programmers will add malicious code which will damage a user's system or be used to gather data without the user's knowledge.

What is the first step to performing hardware maintenance?

Turn off the computer and remove its power source. -- It is important to turn off power supply so that the electronic components are not damaged.

Which of the following is an advantage to saving a file to a flash drive?

You can take it with you and then work on it on another computer. -- The advantage of using a flash drive is that you can remove it from your computer or device, and then use it on a different computer or device.

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

false -- Exposing the computer to such extreme conditions damages the electronic components.

When you add information to a word-processing document, what role does your operating system play?

false -- system software is the software that runs a computer, including the operating system and utilities.

If you have a file that has billions of bytes of data, then it would be measured in _____.

gigabytes -- File size is usually measured in kilobytes (thousands of bytes of data), megabytes (millions of bytes of data), or gigabytes (billions of bytes of data).

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 -- RAM temporarily data needed by the OS and applications we use

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

internal hardware problem -- When computers run low on available hard drive space, performance can quickly deteriorate

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 -- other 3 options require device drivers to work property

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

projector -- can display output from a computer on a large surface like screen or wall.

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

read-only memory (ROM) -- RAM provides temporary storage that applications use to run smoothly and efficiently. Increasing the RAM especially helps with multi-tasking where more temporary memory is needed to function.

Which of the following terms refers to the area of the hard drive used for virtual memory?

swap file -- RAM (random access memory) is the storage location that temporarily stores open apps and document data while a computer or device is on.

Which of the following is classified as input device?

webcam -- a camera type of input device

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. -- It is important to have up-to-date antivirus and other software installed, and the system periodically scanned to ensure virus and malware do not infect it.

Why is the date a file was modified useful?

It identifies the most recent version. -- The modified date is useful if you have several versions of a file and want to identify the most recent version.

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

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

True -- Input and output devices can be connected

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

True -- Unicode is a 16-bit coding scheme to support larger variety of symbols and characters.

Which of the following helps you more easily locate the files and folders you need?

grouping similar subfolders together in a folder

An operating system is also called a(n) _____.

platform -- The operating system manages the complete operation of the computer and lets you interact with it. The operating system starts the word processing program and provides the tools for you to open the document file.

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

solid state drive

What would you need to install if you have an app that is incompatible with your current operating system?

A virtual machine -- A virtual machine enables a computer or device to run another operating system in addition to the one installed.

Which of the following is not a step an operating system performs when printing a document?

It creates the document to be printed. -- If you create a document and want to print it, the operating system establishes a connection to the printer, sends the document to the printer, and lets other software know the printer is busy.

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

Plotter -- can draw continuous lines on large rolls of paper and hence are used to produce professional drawings.

Sticky keys enable you to press keyboard shortcuts one key at a time instead of simultaneously.

True -- You can adjust the keyboard settings to change the commands associated with certain keys including creating new keyboard shortcuts to commands, or enabling sticky keys; this allows you to press keyboard shortcuts one key at a time instead of simultaneously.

Which of the following can you run to find and remove unnecessary files?

disk cleanup utility -- You can open your computer or device's version of the task manager to view running programs and shut down the app.

Folder names should _____.

identify the content and purpose of the folder -- Folders are helpful for organizing and managing information stored on your computer.

When you save a Microsoft Office file to OneDrive, where are you saving it?

in a storage area located on a server -- The cloud is a storage area located on a server that you access through the Internet or a network. You can upload files to cloud storage to share them with others. Files you work on using cloud storage, save changes as you make them.

Where on a computer is the operating system generally stored?

internal hard drive -- can store data for an extended period of time. The OS is stored on this to be accessed by ROM.

_____ is data and instructions entered into the memory of a device.

input -- The bootstrap program executes a series of tests to check the components, including the RAM, keyboard, and storage, and identifies connected devices, and checks their settings.

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

control unit and the arithmetic logic unit -- Control Unit fetches and decodes instructions while ALU executes and stores instructions thereby converting input to output.