Chapter 4
Computer and IT
TU BIT entrance past exam questions
Past questions and answers
91 questions set from this chapter. Most repeated first.
- 2076 Model · 1 mark
Who is father of computer?
(a) Charles Babbage
(b) Balise Pascal
(c) Garden Moore
(d) John Von Neumann
Answer
(a) Charles Babbage
Charles Babbage designed the Analytical Engine and is called the father of the computer.
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- 2077 Model · 1 mark
The disadvantage of dynamic RAM over static RAM is
(a) higher power consumption
(b) variable speed
(c) need to refresh the capacitor charge every once in two milliseconds
(d) higher bit density
Answer
(c) need to refresh the capacitor charge every once in two milliseconds DRAM stores each bit as charge in a capacitor, which leaks, so it must be refreshed periodically. SRAM needs no refresh.
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- 2077 Model · 1 mark
Main storage is also called
(a) Accumulator
(b) Control unit
(c) Register unit
(d) Memory
Answer
(d) Memory Main storage (primary memory) is simply called memory; it holds the data and programs currently in use.
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- 2077 Model · 1 mark
Which printer is very commonly used for desktop publishing?
(a) Laser printer
(b) Ink-jet printer
(c) Daisy wheel printer
(d) Dot-matrix printer
Answer
(a) Laser printer Laser printers give high-quality, high-resolution output at high speed, which suits desktop publishing.
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- 2077 Model · 1 mark
The no. of logical records in a physical record is
(a) Group
(b) Blocking factor
(c) Sector
(d) Field
Answer
(b) Blocking factor The number of logical records grouped into one physical record (block) is the blocking factor.
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- 2077 Model · 1 mark
Which of the following can store information in the form of microscopic pits on metal disks.
(a) Laser disks
(b) Tape cassettes
(c) RAM cartridge
(d) Punched cards
Answer
(a) Laser disks Optical (laser) disks store data as microscopic pits and lands, read by a laser beam.
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- 2077 Model · 1 mark
A storage system for small amounts of data is
(a) Magnetic card
(b) Magnetic tape
(c) Punched card
(d) Optical mark reader
Answer
(a) Magnetic card Magnetic cards (such as stripe cards) hold only a small amount of data, unlike magnetic tape which holds large volumes.
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- 2077 Model · 1 mark
Which is another name of functional language?
(a) Machine
(b) Application language
(c) Low-level language
(d) High level language
Answer
(d) High level language Functional (procedural, problem-oriented) languages are high-level languages, as opposed to machine or low-level languages.
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- 2077 Model · 1 mark
Computer monitor is also known as:
(a) DVU
(b) UVD
(c) VDU
(d) CCTV
Answer
(c) VDU The monitor is also called the Visual Display Unit (VDU).
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- 2077 Model · 1 mark
The output shown on the computer monitor is called
(a) VDU
(b) Hard copy
(c) Soft copy
(d) Screen Copy
Answer
(c) Soft copy Output displayed on the screen is temporary and is called soft copy; printed output is hard copy.
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- 2077 Model · 1 mark
Which feature is used to make selected sentence to all Capital Letter or all small letters?
(a) Charge Letter
(b) Change Sentence
(c) Change Case
(d) Change word
Answer
(c) Change Case In word processors such as MS Word, the Change Case command converts selected text to uppercase, lowercase, sentence case, etc.
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- 2078 Model · 1 mark
Which is the part of the computer system that one can physically touch?
(a) data
(b) operating systems
(c) hardware
(d) software
Answer
(c) hardware Hardware is the physical, touchable part of a computer (monitor, keyboard, CPU); software, data and the operating system are intangible.
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- 2078 Model · 1 mark
A .......... is an electronic device that process data, converting it into information.
(a) computer
(b) processor
(c) case
(d) stylus
Answer
(a) computer A computer is an electronic device that accepts data, processes it and produces information.
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- 2078 Model · 1 mark
Which of the following is not an example of an Operating System?
(a) Windows 98
(b) BSD Unix
(c) Microsoft Office XP
(d) Red Hat Linux
Answer
(c) Microsoft Office XP Microsoft Office XP is application software (an office suite); the others are operating systems.
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- 2078 Model · 1 mark
One Gigabyte is approximately equal is:
(a) 1000,000 bytes
(b) 1000,000,000 bytes
(c) 1000,000,000,000 bytes
(d) None of these
Answer
(b) 1000,000,000 bytes One gigabyte is approximately bytes (exactly bytes in binary usage).
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- 2078 Model · 1 mark
Which of the following is not an input device?
(a) Mouse
(b) Light pen
(c) Keyboard
(d) VDU
Answer
(d) VDU A visual display unit (monitor) is an output device; mouse, light pen and keyboard are input devices.
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- 2078 Model · 1 mark
What type of process creates a smaller file that is faster to transfer over the internet?
(a) Compression
(b) Fragmentation
(c) Encapsulation
(d) None of the above
Answer
(a) Compression Compression reduces file size by encoding data more efficiently, so the file transfers faster.
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- 2078 Model · 1 mark
Which of the following is an example of nonvolatile memory?
(a) Cache memory
(b) RAM
(c) ROM
(d) None of the above
Answer
(c) ROM ROM keeps its contents when power is off (nonvolatile), whereas RAM and cache lose theirs.
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- 2078 Model · 1 mark
File extensions are used in order to ..........
(a) Name the file
(b) Ensure the filename is not lost
(c) Identify the file
(d) Identify the file type
Answer
(d) Identify the file type An extension (such as .txt or .jpg) tells the system and user what type of file it is and which program can open it.
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- 2078 Model · 1 mark
During the ............ portion of the Information Processing Cycle, the computer acquires data from some source.
(a) processing
(b) storage
(c) input
(d) output
Answer
(c) input In the input stage of the information processing cycle, the computer acquires data from a source.
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- 2078 Model · 1 mark
bit stands for
(a) binary information term
(b) binary digit
(c) binary tree
(d) Bivariate Theory
Answer
(b) binary digit A bit is a binary digit, either 0 or 1, the smallest unit of data.
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- 2079 Model · 1 mark
Firewall is used for
(a) Security
(b) Data transmission
(c) Authentication
(d) Monitoring
Answer
(a) Security
A firewall monitors and filters network traffic according to rules to protect a computer or network from unauthorised access.
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- 2079 Model · 1 mark
Which one of the following is not an operating system?
(a) Windows
(b) Linux
(c) C
(d) macOs
Answer
(c) C
C is a programming language. Windows, Linux and macOS are operating systems.
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- 2079 Model · 1 mark
Which one of the following languages is used to develop web sites?
(a) HTML
(b) CSS
(c) JavaScript
(d) All of the above
Answer
(d) All of the above
HTML gives structure, CSS gives styling and JavaScript gives behaviour; all three are used to develop websites.
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- 2079 Model · 1 mark
Which one of the following is part of central processing unit?
(a) Mouse
(b) Keyboard
(c) Screen
(d) ALU
Answer
(d) ALU
The CPU consists of the Arithmetic Logic Unit (ALU), control unit and registers. Mouse, keyboard and screen are peripherals.
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- 2079 Model · 1 mark
The amount of vertical space between lines of text in a document is called
(a) Double space
(b) Vertical spacing
(c) Line spacing
(d) Single space
Answer
(c) Line spacing
Line spacing sets the vertical space between lines of text in a document.
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- 2079 Model · 1 mark
Which one of the following is volatile memory?
(a) ROM
(b) RAM
(c) Disk
(d) All of the above
Answer
(b) RAM
RAM loses its contents when power is off, so it is volatile. ROM and disks are non-volatile.
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- 2079 Model · 1 mark
One kilobyte is equivalent to
(a) 1000 bits
(b) 1024 bits
(c) 2048 bits
(d) 8192 bits
Answer
(d) 8192 bits
1 KB = 1024 bytes, and 1 byte = 8 bits, so bits.
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- 2079 Model · 1 mark
Which one of the following software is used to make presentation slides?
(a) Word
(b) Excel
(c) Power Point
(d) Access
Answer
(c) Power Point
Microsoft PowerPoint is the software for making presentation slides.
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- 2079 Model · 1 mark
Which one of the following is first search engine?
(a) Google
(b) Yahoo
(c) Archie
(d) AltaVista
Answer
(c) Archie
Archie (1990) is regarded as the first Internet search engine; Yahoo, AltaVista and Google came later.
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- 2079 Model · 1 mark
Which one of the following generation computers were developed using microprocessor technology?
(a) First
(b) Second
(c) Third
(d) Fourth
Answer
(d) Fourth
Fourth-generation computers (from about 1971) used microprocessors, i.e. an entire CPU on a single chip (VLSI). First used vacuum tubes, second transistors, third integrated circuits.
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- 2080 · 1 mark
Which bus is bidirectional?
(a) Data bus
(b) system bus
(c) Address bus
(d) All of the above
Answer
(a) Data bus
The data bus carries data in both directions between the CPU, memory and I/O. The address bus is unidirectional.
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- 2080 · 1 mark
Which of the following is also known as flash memory?
(a) ROM
(b) PROM
(c) EPROM
(d) EEPROM
Answer
(d) EEPROM
Flash memory is a form of EEPROM that is electrically erased in blocks.
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- 2080 · 1 mark
Which of the following is based on separate storage and signal pathway?
(a) Von-Neumann
(b) CISC
(c) Harvard
(d) Queue
Answer
(c) Harvard
The Harvard architecture uses separate memories and pathways for instructions and data.
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- 2080 · 1 mark
1000-100 binary subtraction is equivalent to......
(a) 900
(b) 010
(c) 100
(d) 001
Answer
(c) 100
.
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- 2080 · 1 mark
Backberry is ..... software.
(a) System
(b) Application
(c) Utility
(d) Control
Answer
(a) System
BlackBerry is a mobile platform with its own operating system (BlackBerry OS), which is system software.
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- 2080 · 1 mark
Which of the following is high level procedural language?
(a) C++
(b) Java
(c) Python
(d) Fortran
Answer
(d) Fortran
Fortran is a high-level procedural language. C++, Java and Python are chiefly object-oriented or multi-paradigm.
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- 2080 · 1 mark
Which of the following is logical operator
(a) &
(b) =
(c) &&
(d) ==
Answer
(c) &&
&& is the logical AND. & is bitwise, = is assignment and == is relational.
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- 2080 · 1 mark
Which of the following has smallest coverage?
(a) WAN
(b) LAN
(c) PAN
(d) MAN
Answer
(c) PAN
A Personal Area Network covers only a few metres, which is smaller than LAN, MAN and WAN.
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- 2080 · 1 mark
Which among the following is full duplex transmission?
(a) Walkie-Talkie
(b) Bluetooth
(c) Keyboard
(d) None of the above
Answer
(b) Bluetooth
Bluetooth supports two-way simultaneous communication. A walkie-talkie is half duplex and a keyboard is simplex.
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- 2080 · 1 mark
MAC stands for.....
(a) Medium Act Control
(b) Media Act Control
(c) Medium Access Control
(d) Media Access Control
Answer
(d) Media Access Control
MAC stands for Media Access Control, the data-link sublayer and hardware address.
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- 2080 · 1 mark
Which of the following is a component of cyber security?
(a) AI
(b) Internet of Things
(c) Data warehouse
(d) RSA
Answer
(d) RSA RSA is a public-key cryptographic algorithm, and cryptography is a core component of cyber security (confidentiality, integrity). AI, IoT and data warehouses are technologies, not security components.
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- 2080 · 1 mark
Which among the following is not ethical hacker?
(a) Black hat hacker
(b) Gray hat hacker
(c) Biased hat hacker
(d) White hat hacker
Answer
(c) Biased hat hacker Hacker types are white hat (ethical), gray hat and black hat (malicious). "Biased hat" is not a recognised category, so it is not an ethical hacker.
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- 2080 · 1 mark
Which of the following is often used for automatic computation?
(a) Hybrid
(b) Analog
(c) Digital
(d) All of the above
Answer
(c) Digital Digital computers process discrete data (binary) and are used for automatic, general-purpose computation. Analog computers measure continuous quantities.
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- 2080 · 1 mark
Which of the following is the slowest memory?
(a) Hard disk
(b) RAM
(c) Cache
(d) Register
Answer
(a) Hard disk Speed order (fast to slow): register, cache, RAM, hard disk. The hard disk is secondary storage with mechanical access and is the slowest.
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- 2080 · 1 mark
The CPU is given instructions and data through programs. The CPU then fetches the program and data from the memory and performs ............. as per the given instructions and stores the result back to memory.
(a) Logical Operation
(b) Arithmetic Operation
(c) Arithmetic and Logic operations
(d) None of the above
Answer
(c) Arithmetic and Logic operations The ALU of the CPU performs both arithmetic and logical operations on the fetched data as per the instructions.
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- 2080 · 1 mark
Which key on the keyboard can be used to view slide show?
(a) F1
(b) F2
(c) F5
(d) F10
Answer
(c) F5 F5 starts the slide show from the beginning in PowerPoint.
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- 2080 · 1 mark
1 PB (pentabyte) is equivalent to
(a) 1024 KB
(b) 1024 MB
(c) 1024 GB
(d) 1000 TB
Answer
(d) 1000 TB 1 PB is 1000 TB in decimal (SI) usage. In the binary convention it is 1024 TB, which is not listed, so (d) is the best choice.
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- 2080 · 1 mark
ASCII used ...... bits to represent characters.
(a) 8 Bits
(b) 7 bits
(c) 6 bits
(d) 5 bits
Answer
(b) 7 bits Standard ASCII uses 7 bits, giving characters (extended ASCII uses 8 bits).
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- 2080 · 1 mark
The code for the character "a" belongs to....... ASCII code.
(a) 96
(b) 97
(c) 98
(d) 99
Answer
(b) 97 In ASCII, 'A' is 65 and 'a' is 97.
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- 2080 · 1 mark
Which of the following Binary numbers is equivalent to the decimal number 24?
(a) 110111
(b) 111111
(c) 11000
(d) 11001
Answer
(c) 11000 , so the binary is .
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- 2080 · 1 mark
The octal number system is called base-8 system as it has total eight digits
(a) 1 to 8
(b) 0 to 7
(c) 2 to 9
(d) None of the above
Answer
(b) 0 to 7 The octal system has eight digits, 0 to 7, hence base 8.
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- 2080 · 1 mark
What else is a command interpreter called?
(a) prompt
(b) kernel
(c) shell
(d) command
Answer
(c) shell The shell is the command interpreter that accepts commands from the user and passes them to the operating system kernel.
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- 2080 · 1 mark
What is the meaning of the Booting in the operating system?
(a) Restarting computer
(b) Install the program
(c) To scan
(d) To turn off
Answer
(a) Restarting computer Booting is the process of starting the computer: the bootstrap loader loads the operating system into memory. Of the options, restarting is the closest meaning.
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- 2080 · 1 mark
What is bootstrapping called?
(a) Cold boot
(b) Cold hot boot
(c) Cold hot strap
(d) Hot boot
Answer
(a) Cold boot Bootstrapping is booting the computer. Starting it from a powered-off state is a cold boot (starting it by restart while power is on is a warm or hot boot).
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- 2080 · 1 mark
Which of the following is an example of a Real Time Operating System?
(a) MAC
(b) MS-DOS
(c) Windows 10
(d) Process Control
Answer
(d) Process Control Process control systems need guaranteed response within a fixed time, so they use a real-time operating system. MS-DOS, Windows 10 and Mac are not RTOS.
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- 2080 · 1 mark
Which program runs first after booting the computer and loading the GUI?
(a) Desktop Manager
(b) File Manager
(c) Windows Explorer
(d) Authentication
Answer
(d) Authentication After booting and loading the GUI, the login (authentication) step runs first to verify the user, before the desktop and file manager are loaded.
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- 2080 · 1 mark
What will be the output of the following code snippet? #include <stdio.h> int main() { int a = 3, b = 5; int t = a; a = b; b = t; printf("%d %d", a, b); return 0; }
(a) 35
(b) 33
(c) 55
(d) 53
Answer
(d) 53 The code swaps a and b using t: , , . It prints "53".
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- 2080 · 1 mark
Which of the following can read and render HTML web pages?
(a) Server
(b) Head Tak
(c) Web Browser
(d) Empty
Answer
(c) Web Browser A web browser such as Chrome or Firefox reads HTML and renders it as a web page.
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- 2080 · 1 mark
Simple network management protocol uses which of the following port number
(a) 161
(b) 162
(c) 163
(d) 164
Answer
(a) 161 SNMP uses UDP port 161 for queries and port 162 for traps.
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- 2080 · 1 mark
Which of the following attributes defines the relationship between the current document and URL?
(a) URL
(b) REV
(c) REL
(d) UVL
Answer
(c) REL
The rel attribute specifies the relationship between the current document and the linked resource (e.g. rel="stylesheet"). rev defines the reverse relationship.
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- 2080 · 1 mark
How many sizes of headers are available in HTML by default?
(a) 1
(b) 3
(c) 5
(d) 6
Answer
(d) 6
HTML has six heading levels, <h1> (largest) to <h6> (smallest).
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- 2080 · 1 mark
Multimedia is also used for ....... communications and presentations.
(a) Corporate
(b) Company
(c) Communal
(d) Commercial
Answer
(a) Corporate Multimedia is widely used for corporate communications and presentations.
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- 2080 · 1 mark
A heavy video in a WBT may not load because of poor
(a) Signal
(b) KBPS
(c) Presentation
(d) Bandwidth
Answer
(d) Bandwidth Heavy video needs high data transfer capacity; low bandwidth prevents it from loading in web-based training (WBT).
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- 2080 · 1 mark
In which of the following, a person is constantly followed/chased by another person or group of several peoples?
(a) Phishing
(b) Bulling
(c) Stalking
(d) Identity theft
Answer
(c) Stalking Cyber stalking is repeatedly following or harassing a person. Phishing steals data, bullying is harassment, identity theft is impersonation.
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- 2080 · 1 mark
Which of the following refers to exploring the appropriate, ethical behaviors related to the online environment and digital media platform?
(a) Cyber Law
(b) Cyber Ethics
(c) Cyber Security
(d) Cyber Safety
Answer
(b) Cyber Ethics Cyber ethics deals with appropriate and ethical behaviour in the online environment and on digital media.
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- 2080 · 1 mark
Code Red is a type of ........
(a) An Antivirus Program
(b) A photo editing software
(c) A computer virus
(d) A video editing software
Answer
(c) A computer virus Code Red was a computer worm/virus that exploited a Microsoft IIS server vulnerability in 2001.
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- 2080 · 1 mark
Which of the following statements is correct about the firewall?
(a) It is a device installed at the boundary of a company to prevent unauthorized physical access.
(b) It is a device installed at the boundary of incorporation to protect it against unauthorized access.
(c) It is a kind of wall built to prevent files from damaging the corporate.
(d) None of the above.
Answer
(b) It is a device installed at the boundary of incorporation to protect it against unauthorized access. A firewall (hardware or software) filters traffic between an organisation's network and outside networks to block unauthorised access.
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- 2080 · 1 mark
Which of the following is a type of independent malicious program that never requires any host program?
(a) Trojan Horse
(b) Worm
(c) Trap Door
(d) Virus
Answer
(b) Worm A worm is standalone malware that replicates itself and spreads over networks without a host program. A virus needs a host file.
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- 2080 · 1 mark
How many AND gates are required to realize Y = CD + EF + G?
(a) 4
(b) 5
(c) 3
(d) 2
Similar questions: How many two-input AND gates and two input OR gates are... (2080)
Answer
(d) 2 The terms and each need one AND gate; is a single literal and needs none. The three terms are then ORed.
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- 2080 · 1 mark
How many two-input AND gates and two input OR gates are required to realize Y = BD+CE + AB?
(a) 3, 2
(b) 4, 2
(c) 1, 1
(d) 2, 3
Similar questions: How many AND gates are required to realize Y = CD + EF + G? (2080)
Answer
(a) 3, 2 The three product terms , , need 3 two-input AND gates. Combining three terms with two-input OR gates needs OR gates.
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- 2080 · 1 mark
What is the color code of blue color in html?
(a) #ff0000
(b) #00ff00
(c) #0000ff
(d) Ff00ff#
Answer
(c) #0000ff HTML colours are #RRGGBB. Blue is 00 red, 00 green, ff blue.
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- 2080 · 1 mark
Which of the following tag is not valid in HTML5?
(a) <<l> tag
(b) <s> tag
(c) <p>
(d) <e>
Answer
(d) <e>
<s> (strikethrough) and <p> are valid. There is no <e> tag in HTML5.
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- 2080 · 1 mark
A hacker contacts your phone or e-mail and attempts to acquire your password is called
(a) spamming
(b) spoofing
(c) phishing
(d) hamming
Answer
(c) phishing Phishing tricks users through e-mail, phone or fake sites into revealing passwords or other sensitive information.
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- 2080 · 1 mark
Which of the following is De Morgan's law in Boolean algebra?
(a)
(b)
(c)
(d)
Answer
(d) No option states De Morgan's law, which is and . The options are commutative (a), absorption (b), associative (c) and distributive (d) laws, and (d) is the one nearest to it in kind as a law relating the AND and OR operations.
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- 2080 · 1 mark
Which of the following is absorption law in Boolean algebra?
(a)
(b)
(c)
(d)
Answer
(b) , which is the absorption law.
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- 2080 · 1 mark
Which one is an example of identity law?
(a)
(b)
(c)
(d)
Answer
(a) 0 is the identity element for OR, so adding it leaves unchanged. (b) is the null law, (c) commutative, (d) associative.
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- 2080 · 1 mark
Which of the following is the correct IPv4 address?
(a) 124.201.3.1.52
(b) 01.200.128.123
(c) 300.142.210.64
(d) 128.64.0.0
Answer
(d) 128.64.0.0 An IPv4 address has four decimal octets, each from 0 to 255. (a) has five parts and (c) has 300 > 255. (b) has a leading zero, which is not standard notation.
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- 2080 · 1 mark
Which of the following is defined as an attempt to steal, spy, damage or destroy computer systems, networks, or their associated information?
(a) Cyber attack
(b) Computer security
(c) Cryptography
(d) Digital hacking
Answer
(a) Cyber attack A cyber attack is an attempt to steal, spy on, damage or destroy computer systems, networks or their information.
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- 2080 · 1 mark
Where did the term "hacker" originate?
(a) MIT
(b) New York University
(c) Harvard University
(d) Bell's Lab
Answer
(a) MIT The term "hacker" originated at the Massachusetts Institute of Technology in the 1960s.
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- 2080 · 1 mark
Which of the following is an open source software?
(a) Unix
(b) Linux
(c) Windows
(d) MS word
Answer
(b) Linux Linux has freely available, modifiable source code under the GPL. Windows and MS Word are proprietary, and Unix is mostly proprietary.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
Analog computer works on the supply of
(a) physical strength.
(b) natural strength.
(c) magnetic strength.
(d) continuous electrical pulses.
Answer
(d) continuous electrical pulses
Analog computers work on continuous physical quantities such as electrical voltage, represented by continuous electrical signals.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
We can make use of the wild card entries such as ........... in Windows Explorer.
(a) #,@
(b) ^,*
(c) ?,*
(d) #,?
Answer
(c) ?, *
In Windows Explorer the wildcards are ? (one character) and * (any number of characters).
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
Which of the following is the second largest measurement of RAM?
(a) Megabyte
(b) Gigabyte
(c) Byte
(d) Terabyte
Answer
(b) Gigabyte. The order of units is Byte < Kilobyte < Megabyte < Gigabyte < Terabyte. Among the options, Terabyte is largest and Gigabyte is second largest.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
Cache memory acts between
(a) CPU and Hard disk.
(b) RAM and ROM.
(c) CPU and RAM .
(d) All of these .
Answer
(c) CPU and RAM. Cache is a small, very fast memory placed between the CPU and main memory (RAM) to reduce the time the CPU spends waiting for data.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
Which of the following is billionth of a second?
(a) Microsecond
(b) Nanosecond
(c) Terabyte
(d) Gigabyte
Answer
(b) Nanosecond. A nanosecond is one billionth of a second (0^{-9} s).
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
The Binary Coded Decimal (BCD) uses
(a) 6 bits
(b) 8 bits
(c) 16 bits
(d) 32 bits
Answer
(a) 6 bits. The classic Binary Coded Decimal (BCD) character code is a 6-bit code, allowing 64 characters (digits, letters and some symbols).
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
RAM is also called as
(a) Virtual memory .
(b) Volatile memory .
(c) Non volatile memory.
(d) Cache memory.
Answer
(b) Volatile memory. RAM loses its contents when power is switched off, so it is called volatile memory.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
CPU stands for
(a) Central Processing Unit.
(b) Computer Planning Union.
(c) Computer Processing Unit.
(d) Central Processing Union.
Answer
(a) Central Processing Unit. The CPU is the brain of the computer that executes instructions.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
If you want to copy a portion of the text then you need to use
(a) Control & C
(b) Command & C
(c) Control & V
(d) Command and V
Answer
(a) Control & C. Ctrl + C copies the selected text; Ctrl + V pastes it. Command-key shortcuts belong to macOS.
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- TU BIT Entrance Exam Model Questions Set 2 · 1 mark
Which one is not an operating system?
(a) Windows
(b) Linux
(c) Unix
(d) LaTex
Answer
(d) LaTex. LaTeX is a document preparation (typesetting) system, not an operating system. Windows, Linux and Unix are operating systems.
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