PPSC Computer Science Past Paper 2020 Solved MCQs with Answers
Solved Computer Science MCQs from the PPSC 2020 past paper, each with the correct answer and a clear explanation. Ideal practice for PPSC, FPSC, NTS, CSS and PMS. All questions are extracted from the actual 2020 paper and verified before publication.
Blank DVDs on which data can be erased and rewritten are known as?
A DVD+RW can be erased and rewritten many times. A DVD-ROM is read only.
Which feature in Excel enables users to assess values and return a result?
Formulas evaluate values in a worksheet and return a result.
Shortcut key to move a selected paragraph up?
Alt + Shift + Up Arrow moves the selected paragraph up. The down arrow moves it down.
A Word template stores a common document?
A template stores the structure of a document, its layout, styles and standing text, so new documents inherit it.
Ctrl+B shortcut key is used in MS Word to?
Ctrl + B applies bold.
On a Windows PC, which shortcut key is used to redo the last action in Microsoft PowerPoint?
Ctrl + Y redoes the last undone action.
Which was the first computer to use the “Stored Program Concept”?
EDSAC, which ran in 1949 at Cambridge, was the first practical computer to work on the stored program principle. EDVAC was designed earlier but became operational later.
Which are used for displaying data?
Output devices, such as monitors and printers, display or present the results of processing.
For the computer to connect to the internet, it must be connected to an?
A computer reaches the internet through an Internet Service Provider.
In MS Excel 2016, what can be used to divide the window into two?
The Split command is on the View tab, in the Window group, and divides the worksheet into scrollable panes.
What displays the document name and information?
The title bar shows the name of the document and of the application.
How many different documents can be opened at one time?
There is no fixed limit on the number of open documents. The practical limit is the memory available.
The format or arrangement of data is called?
Syntax is the set of rules governing the form and arrangement of data or of statements in a language.
Which one is a database management system?
Oracle is a database management system. Word, Chrome and Photoshop are not.
Which is not an MS PowerPoint view?
There is no Orientation View in PowerPoint. Normal, Slide Sorter and Outline are genuine views.
Which shortcut key is used to move the cursor one page down?
The Page Down key moves the cursor down one page or screen.
In MS Word 2016, where is the Screenshot option located?
The Screenshot tool is on the Insert tab in MS Word 2016.
Which command can be used to allow or restrict a cell entry?
Data validation restricts what may be entered in a cell, rejecting anything outside the rule you set.
In the field of computers, BASIC (Beginners All-Purpose Symbolic Instruction Code) is what?
BASIC is a programming language, developed in 1964 for beginners.
In what is an analog signal measured?
The amplitude of an analog signal is measured in volts.
In MS Word 2016, which keys should be pressed on the keyboard to extend a selection one line up?
Shift + Up Arrow extends the selection one line up.
What does OCR stand for?
OCR stands for Optical Character Recognition, which converts an image of text into editable text.
Which allows us to send the same letter to different persons?
Mail merge sends the same letter to many recipients, drawing the names and addresses from a data source.
The Illustrations group is in which tab?
The Illustrations group, holding pictures, shapes and charts, is on the Insert tab.
In MS Word 2016, which of the following shortcut keys is used for Paste Special?
Ctrl + Alt + V opens Paste Special, which lets you choose the format in which the content is pasted.
What is the process called of transferring files from the Internet to your computer?
Bringing files from the internet to your computer is downloading.
In Microsoft Excel, the file that you create and edit is called?
The file you create in Excel is a workbook, which contains one or more worksheets.
To make text italic?
Ctrl + I applies italic.
In Excel, where is Conditional Formatting?
Conditional Formatting is in the Styles group on the Home tab.
Which is not a kind of chart?
There is no T-graph chart type. Bar, pie and line charts are standard.
Under which option are indent setting, margin changing, and tab setting shown?
The ruler shows and sets indents, tab stops and page margins.
The “Mail Merge” option is in which tab?
Mail Merge is on the Mailings tab in MS Word.
On what is Slide Transition done?
A transition is applied to the current slide, controlling how it appears as the show moves on to it.
“Header” and “Footer” are in which tab?
Header and Footer are inserted from the Insert tab.
What is the beginning point of a website?
The starting point of a website is its home page.
To keep values fixed in Excel, we use?
An absolute reference, written with dollar signs, keeps a cell address fixed when the formula is copied elsewhere.
Which is used to open a website?
A browser opens websites.
One Kilobyte is equal to?
One kilobyte is 1024 bytes, since storage is counted in powers of two.
A word on a web page that, when clicked, opens another document?
A word on a page that opens another document when clicked is a hyperlink.
Which shortcut key is used to begin the slideshow?
F5 starts the slide show from the beginning.
Which alignment option distributes the data across the width of the cell?
Distributed alignment spreads the characters evenly across the full width of the cell.
What is the Clipboard in Home used for?
The Clipboard group on the Home tab holds Cut, Copy and Paste, the commands that move content between locations.
What is used to add text in a slide?
A text box holds text placed anywhere on a slide.
ALU and CU are parts of?
The arithmetic logic unit and the control unit are the two main parts of the CPU.
Pressing F8 three times selects what?
F8 turns on extend mode, a second press selects the word and a third selects the sentence.
Which can be given a new name?
Both worksheets and workbooks can be renamed, the sheet from its tab and the workbook through Save As.
The Mac operating system is developed by which company?
The Mac operating system is developed by Apple.
A hard disk becomes completely inaccessible when a computer virus damages its?
Damage to the partition table makes the whole disk inaccessible, since the system can no longer find where any volume begins.
How many kinds of page orientation are there?
There are two page orientations, portrait and landscape.
Rows and columns intersect at a?
A row and a column intersect at a cell.
Which symbol must every formula begin with?
Every Excel formula begins with an equals sign.
What is the shortcut key for finding something?
Ctrl + F opens Find.
What is the shortcut key for the next slide?
The spacebar advances to the next slide during a show, as do the right arrow and Enter.
Which keystrokes update a bibliography field?
F9 updates the selected field, including a bibliography or table of contents.
What is the minimum number of rows and columns in an MS Word table?
The smallest table MS Word will insert is one row by one column.
What is the maximum zoom percentage in PowerPoint?
PowerPoint zooms up to 400 per cent.
What is Ctrl+N used for?
Ctrl + N creates a new document.
How do you select multiple slides?
Holding Ctrl while clicking selects several slides that are not next to each other.
Reusable optical storage typically has which acronym?
RW in an optical disc name stands for rewritable, meaning the disc can be erased and written again.
Who, along with Robert Cailliau, invented the World Wide Web (WWW)?
Tim Berners-Lee, working with Robert Cailliau at CERN, invented the World Wide Web in 1989.
In MS Word 2016, in which place is the option ‘Multilevel List’ available?
The Multilevel List button is in the Paragraph group on the Home tab.
CRT stands for?
CRT stands for Cathode Ray Tube, the technology of older bulky monitors and televisions.
Which shortcut will create a new folder in a Windows folder?
Ctrl + Shift + N creates a new folder in Windows Explorer.
Which shortcut keys are used to “cut selected items”?
Ctrl + X cuts the selected item.
In MS Excel 2016, which option do you have to go to for setting or clearing the print area?
The print area is set and cleared from the Page Layout tab in Excel.
In MS Word 2016, to increase the font size by 1 point, press?
Ctrl + ] increases the font size by one point. Ctrl + [ decreases it.
What is BIOS used for?
The BIOS starts the machine, tests the hardware and loads the operating system from the boot device.
What is the main language used for structuring content on the World Wide Web?
HTML is the language that structures content on the web.
To open a template in Word to create a new document, first go to File and what?
New, on the File tab, offers the available templates from which a document can be started.
Which technique is used to send more than one signal over a single communication line?
Multiplexing combines several signals so they travel over one line, and demultiplexing separates them at the far end.
Which of the following is the correct command to change the line spacing to 1.5 lines in MS Word?
Ctrl + 5 sets 1.5 line spacing.
Which key combination is used to select the entire document in most applications?
Ctrl + A selects the entire document.
On which peripheral device would you typically find a numeric keypad?
The numeric keypad is the block of number keys at the right of a full sized keyboard.
What operation will you perform if you need to move a block of text from one location to another?
Cut and paste moves a block of text. Copy and paste would leave the original in place.
What is a network called that covers a large geographical area, such as a city, a country, or even continents?
A wide area network spans a large geographical area, a city, a country or more.
In an email client, in which folder are newly received messages typically stored?
New mail arrives in the Inbox.
What category of computer hardware do speakers belong to?
Speakers are output devices, producing sound from the computer.
Many programmers refer to the act of writing the source code for a software program as?
Writing the source code of a program is called coding.
HTML is the fundamental language used to create the structure of?
HTML creates the structure of web pages.
In MS Word 2016, the ‘Watermark’ option is found in which tab?
The Watermark button is on the Design tab in MS Word 2016.
DPI is short for?
DPI stands for dots per inch, the measure of printing resolution.
The page orientation (Portrait or Landscape) in MS Word can be changed from which tab?
Page orientation is changed from the Layout tab in MS Word 2016.
In MS Word 2016, where is the ‘Cover Page’ option available?
The Cover Page button is on the Insert tab.
In what number system form is data primarily stored and processed within a computer?
A computer stores and processes data in binary, as ones and zeros, because its circuits have two stable states.
In MS Excel 2016, the function =NOW() is used for?
NOW() returns the current date and time together.
Which keyboard shortcut is used to center-align the text in most word processors?
Ctrl + E centres the text.
In MS Excel 2016, in which tab is the ‘Print Titles’ option available?
Print Titles, which repeats chosen rows or columns on every printed page, is on the Page Layout tab.
“Adobe Flash” is an example of what?
Adobe Flash was multimedia software, used for animation and interactive content on the web.
What are Hybrid Computers?
A hybrid computer combines analog and digital elements, and is used where a continuous quantity must be measured and then processed digitally.
Which shortcut key is used to lock the computer/screen?
Windows key + L locks the screen.
The purpose of what is to act as a holding area, enabling the CPU to manipulate data before transferring it to a device?
A buffer is a temporary holding area that lets the CPU work on data before passing it to a slower device.
About the PPSC Computer Science Past Paper 2020
Every MCQ above is taken from the Punjab Public Service Commission (PPSC) Computer Science papers held in 2020, with the correct answer and a written explanation for each. Past-paper practice is the most dependable way to prepare for PPSC, FPSC, NTS, CSS and PMS, because these papers repeat their themes, and often the questions themselves, from one year to the next.
Questions were checked against reliable sources before publication. Where a circulating source sheet carried a factual or wording error, we corrected it rather than reproducing the mistake. For chapter-wise preparation, work through our Computer Science MCQs hub, which also lists every other year’s paper. Further reading: Pakistan Movement and the PPSC official website.
How to Use This Paper
Attempt the full quiz before looking at any answer, then read the explanation for every question you got wrong, including those you guessed correctly. A past paper is only useful if you close the gaps it exposes. Pro members can download the complete paper as a PDF with all answers and explanations for offline revision.