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MCQs — Computer Systems

Practice questions for Computer Science.

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Question 221

Which activity belongs to software engineering?

A. Soldering a memory chip onto a board

B. Writing and testing a program for a school attendance system

C. Manufacturing a monitor

D. Building a power supply unit

Question 222

What does software maintenance mean?

A. Cleaning the computer with a cloth

B. Buying a new computer every year

C. Updating and fixing software after it has been released

D. Removing the monitor

Question 223

A hardware engineer is a professional who:

A. Designs and tests physical computer parts such as processors and circuit boards

B. Writes the code for mobile apps

C. Creates the content of websites

D. Only teaches computer science

Question 224

Which professional would be most likely to design a new motherboard?

A. Web content writer

B. Database administrator

C. Software tester

D. Hardware engineer

Question 225

A software engineer is a professional who:

A. Builds circuit boards

B. Designs, writes and tests programs

C. Manufactures memory chips

D. Repairs damaged cables

Question 226

Which professional would be most likely to develop a mobile banking app?

A. Hardware engineer

B. Chip manufacturer

C. Software engineer

D. Power supply technician

Question 227

How are hardware and software development related when a new computer is created?

A. Software is developed to run on the hardware, so both must be designed to work together

B. They never need to be connected

C. Hardware is developed only after the software is deleted

D. Software can work without any hardware

Question 228

Both hardware and software development usually include stages such as:

A. Painting and printing only

B. Selling and advertising only

C. Cooking and cleaning

D. Planning, design and testing

Question 229

Which statement correctly distinguishes hardware engineering from software engineering?

A. Hardware engineering creates programs, while software engineering builds physical parts

B. Hardware engineering builds physical components, while software engineering creates programs

C. Both build only physical components

D. Both work only with websites

Question 230

A company is developing a new touchscreen tablet. Which pairing of tasks is correct?

A. Hardware engineers write the apps; software engineers design the screen circuitry

B. Hardware engineers and software engineers both design the battery

C. Hardware engineers design the screen circuitry; software engineers create the interface software

D. Neither group is needed

Question 231

Why can a computer not do useful work with hardware alone or with software alone?

A. Hardware needs software to instruct it, and software needs hardware to run on

B. Hardware works perfectly without instructions

C. Software can run without any physical device

D. Both are exactly the same thing

Question 232

System software is best described as:

A. Programs used only for playing games

B. Programs used only for drawing pictures

C. Programs that control and manage the hardware and provide a platform for other software

D. Programs used only to send email

Question 233

Which of the following is an example of system software?

A. Operating system

B. Word processor

C. Spreadsheet program

D. Presentation program

Question 234

Why is system software needed in a computer?

A. To replace the monitor

B. To manage hardware resources and allow application software to run

C. To increase the size of the screen

D. To supply electricity

Question 235

Which group contains only system software?

A. Word processor, spreadsheet and web browser

B. Photo editor, video game and presentation program

C. Spreadsheet, operating system and calculator app

D. Operating system, device drivers and utility programs

Question 236

What is the main role of an operating system?

A. To print documents only

B. To manage the computer's hardware and software resources and provide an interface for the user

C. To store data permanently on paper

D. To make the keyboard heavier

Question 237

Which of the following is an operating system?

A. Microsoft Excel

B. Google Chrome

C. Microsoft PowerPoint

D. Linux

Question 238

Android is an operating system used mainly on:

A. Mechanical calculators

B. Smartphones and tablets

C. Punched-card machines

D. Abacus devices

Question 239

How does an operating system act as an intermediary?

A. It stands between the user or programs and the computer hardware

B. It replaces the CPU

C. It stores all user files inside RAM permanently

D. It connects computers to the electricity supply

Question 240

A school lab has new computers with no software installed. Which software must be installed first so that other programs can run?

A. A game

B. An operating system

C. A photo editor

D. A web page

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