COSCI 1314: Midterm Review
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.
Martha has been appointed as the Data Security Manager of her organization. The company wants her to have a customized app created that can be used to remove viruses from the infected systems without connecting to the network. What type of app should she focus on getting developed?
A device management portable app
When Jack takes a class, he saves all his work for that class with the name of the course. What is most likely happening to his saved files?
Because he is using the same name, each time he saves he is overwriting his previous work.
Which of these is an optical medium of storage?
Blu-ray discs
What determines the speed at which data travels?
Bus width
What are the two important components of CPU that help in processing the input into output?
Control Unit and Arithmetic Logic Unit
Fiona is responsible for presenting data at the monthly team meeting so that it can be understood at a glance and is visually appealing way. The data is available in spreadsheet. Which of the following can Fiona do?
Create trend-lines
Remus is an art student who wants to start creating digital artwork on his computer. He wants to be able to create images that retain their quality in all sizes. Which type of app should he use?
Drawing app
In which of the following storage device(s) does memory need to be constantly recharged to retain the contents?
Dynamic RAM (DRAM)
What is the correct sequence of processing instructions in a machine cycle?
Fetch --> decode --? execute --> store
During which step of the boot process does the computer or device load the operating system files into RAM?
Fourth step
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
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.
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?
In the RAM
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?
Increase the RAM on her laptop so that more space for temporary storage of data is available, hence, increasing the performance
Which of the following statements is true about the Clipboard?
It is temporary storage that holds a selection until you paste it into a document or folder.
Jamie plans to sell his pottery designs through his website. If he also wants to launch a mobile app to reach more people, which type of app should he launch?
M-commerce app
What performance specification does 2 GHz refer to?
Speed at which the processor executes instructions
What is the first step in the boot process?
The computer or device receives power from the power supply or battery and send it to the circuitry.
Which part of the operating system enables you to interact with the device?
The graphical user interface
You are describing the boot process to a friend and get to the step where the device loads the operating files into RAM, including the kernel. Your friend starts to laugh because she was not aware that there were kernels in her computer. What do you tell her?
The kernel is the core of an operating system that manages memory, runs programs, and assigns resources.
How is an executable file different from a data file?
Unlike a data file, you cannot open and read executable files.
How can you check data on devices connected through IoT network?
Use a tablet
Shania has started a new job as an app developer. Her first task was to make an old app designed for Android available on other platforms. Which of the following would make her job easiest and fastest?
Use cross-platform tools to write code that will translate the existing Android app code into different native formats.
Which of the following is a necessary step in maintaining computer hardware?
Using a UPS or a surge processor
Lauren wants to be a blogger but uses a Chromebook for writing posts and uploading them to the website. If she has an Internet connection, what software can help her do her work?
Zoho writer
When you want to add information to a document, what role does your operating system play?
saves your unsaved work to temporary storage
A file manager is used for all of the following except ____.
to name files and folders
Andrew's company uses a special email program for communicating within the organization. What should the company do to ensure that its employees are able to access the inbox even when they are away from office?
Make the program available as a web app.
If you delete a shortcut from your desktop, have you also deleted the original file?
No, because a shortcut does not place the actual file, folder, or app on the desktop.
Paul has opened a bespoke tailoring shop. He wants to keep a database of all his customers, send e-mails when garments are ready, create designs, and maintain financial records using software. Which productivity suites should he consider?
OpenOffice, G suite
Which of the following may cause your computer to slow down?
Paging