101. ‘Windows-3’ a popular windowing environment was released by Microsoft in the year –
(a) 1985
(b) 2000
(c) 1995
(d) 1990
[Uttarakhand P.C.S. (Pre) 2005]
Ans. (d) 1990
- Microsoft created Windows, a type of software which lets you use a computer.
- The first version, Windows 3, was released in 1990.
- The latest version is Windows 11, which came out in October 2021.
|
102. Windows operating system was developed by –
(a) Microsoft
(b) I.B.M.
(c) A.T. & T
(d) H.P.
[Uttrakhand U.D.A./L.D.A. (Mains) 2006]
Ans. (a) Microsoft
- Microsoft Windows is a computer operating system (OS) made by Microsoft Corporation.
- It is used on personal computers (PCs) and was the first to have a graphical user interface (GUI).
- With this, it quickly became the most popular OS for PCs.
|
103. Windows Software has been developed by :
(a) I.B.M.
(b) Apple Corporation
(c) WIPRO
(d) None of the above
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (d) None of the above
- Microsoft created Windows, which is the most used operating system worldwide.
- It was introduced in 1985.
|
104. Which of the following is an Operating System?
(a) UNIX
(b) JAVA
(c) ORACLE
(d) MS-Ofce
[Uttarakhand P.C.S. (Pre) 2016]
Ans. (a) UNIX
- UNIX is an operating system. The UNIX operating system is widely used in both servers and workplaces.
|
105. Types of computer memory is/are –
(1) Semiconductor
(2) Magnetic
(3) Server
(4) Optical
Select the correct answer from the codes given below-
(a) 1 and 2
(b) 2 and 3
(c) 1,2 and 4
(d) All the four
[Uttarakhand U.D.A./L.D.A. (Pre) 2003]
Ans. (c) 1,2 and 4
- Computer memory can be divided into two types: primary memory made of semiconductors, and secondary memory using magnetic or optical media.
- Examples of secondary memory include Hard Disk, Magnetic Tape, Floppy Disk, Pen Drive, D.V.D., and Compact Disc.
|
106. The memory of the computer is measured by –
(a) Bits
(b) Ohms
(c) Amperes
(d) Volts
[U.P.P.C.S. (Mains) 2006]
Ans. (a) Bits
- Computer memory’s main purpose is to keep data and information.
- The smallest piece of computer memory is called a bit or binary digit.
- Computers use a binary system which means they process data in 1s and 0s.
- This type of storage, with either a 1 or 0, is called a bit.
|
107. Binary numbers are –
(a) 0 and 1
(b) 0 and 10
(c) 1 and 10
(d) 1 and 100
[Uttarakhand P.C.S. (Mains) 2006]
Ans. (a) 0 and 1
- Binary is a type of counting system that only uses 0 and 1.
- It is also used in digital technology to represent two possible states, usually referred to as “low” and “high”.
- This is used to store, process, and communicate digital data.
|
108. In Binary Code 7 is written as
(a) 0110
(b) 0111
(c) 0101
(d) 0100
[R.A.S./R.T.S. (Pre) 2003]
Ans. (b) 0111
- To figure out the binary code of any number, remember the sequence of numbers from right to left: 16, 8, 4, 2, 1. For each number, write a 1 below it and a 0 for the rest.
- To calculate the binary code for the number 2, write a 1 below it and 0 for the rest.
- eg 2 = 0 0 1 0 ( Hence binary code of 2 = 0010)
- 8 4 2 1 → ( 2 + 1 = 3 ) [ 3 = 0011]
- eg 3 = 0 0 1 1 ( Hence binary code of 3 = 0011)
- eg 4 = 0 1 0 0 ( Hence binary code of 4 = 0100)
- 8 4 2 1 → ( 4 + 1 = 5 )[5 = 0101 ]
- eg 5 = 0 1 0 1 ( Hence binary code of 5 = 0101)
- 8 4 2 1 → ( 4 + 2 = 6 ) [6 = 0101]
- eg 6 = 0 1 1 0 ( Hence binary code of 6 = 0110)
- 8 4 2 1 → (4 + 2 + 1 = 7 ) [ 7 = 0111 ]
- eg 7 = 0 1 1 1 ( Hence binary code of 7 = 0111)
- eg 8 = 1 0 0 0 ( Hence binary code of 8 = 1000)
- 8 4 2 1 → (8 + 1 = 9 ) [9 = 1001]
- eg 9 = 1 0 0 1 ( Hence binary code of 9 = 1001)
- So by this method, you can calculate the binary code of any given number. Hence option (b) is correct.
|
109. Binary language consists of how many digits?
(a) 2
(b) 3
(c) 4
(d) 16
[M.P.P.C.S. (Pre) 2015]
Ans. (a) 2
- Today’s computers, also referred to as digital computers, only use a language of 0s and 1s, which is also known as machine language.
|
110. Which of the following is a self-implementing code?
(a) 8421 code
(b) 5211 code
(c) Gray code
(d) Binary code
[U.P. Lower Sub. (Mains) 2013]
Ans. (b) 5211 code
- If you switch all the 1s with 0s and 0s with 1s in a 4-bit code, it’s called a self-complementing code.
- For example, (2421) and (5211) are both self-complementing.
- To be a self-complementing weighted code, the total sum of all its weights must be 9.
- Digit 8421 and 5421 codes are not self-complementing but 5211, 2421, 3321,
|
111. The binary addition 1 + 1 will result in –
(a) 0
(b) 0 with carry 1
(c) 0 with no carry
(d) 1
[Uttarakhand Lower Sub. (Pre) 2010]
Ans. (b) 0 with carry 1
- The binary addition of 1+ 1 is 0 and carry 1. Similarly the Binary addition of 0+0 results 0.
|
112. The memory of a computer is commonly expressed in terms of kilobytes or megabytes. A byte is made up of –
(a) Eight binary digits
(b) Eight decimal digits
(c) Two binary digits
(d) Two decimal digits
[I.A.S. (Pre) 2000]
Ans. (a) Eight binary digits
- The computer memory is expressed in kilobytes or megabytes or gigabytes. 1 byte equals to 8 binary digits (bits).
- 1 kilobyte = 1024 byte
- 1 megabyte = 1024 kilobyte
- 1 gigabyte = 1024 megabyte
- 1 terabyte = 1024 gigabyte
|
113. A collection of 8-bit is called :
(a) Nibble
(b) Byte
(c) Word
(d) Kilobyte
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (b) Byte
- Eight pieces of digital information together make up a byte. A byte is a way to represent one letter, number, or symbol. For instance, a single byte can hold either the letter ‘A’ or ‘x’.
|
114. One Byte equals how many Bits?
(a) 8
(b) 16
(c) 24
(d) 32
[U.P.P.C.S. (Mains) 2006]
Ans. (a) 8
- A byte is a short way of saying a single unit of computer storage that can store one letter or number. On most computers, a byte is the same as 8 bits.
|
115. One byte has –
(a) 8-bits
(b) 16-bits
(c) 32-bits
(d) 64-bits
[M.P.P.C.S. (Pre) 2014]
Ans. (a) 8-bits
- One byte is made up of eight smaller ‘bits’, which are a type of digital information. A byte is used to store one character of text in a computer.
|
116. How many bits are there in one byte?
(a) 2
(b) 8
(c) 16
(d) 10
[M.P.P.C.S. (Pre) 2015]
Ans. (b) 8
- The byte is a unit of digital information that most commonly consists of eight bits.
|
117. How many bits are there in a kilobyte?
(a) 1024
(b) 1000
(c) 8024
(d) 8192
[Jharkhand P.C.S. (Pre) 2016]
Ans. (d) 8192
- A byte contains 8 bits and 1 kilobyte (kb) contains 1024 bytes. Like this –
- 1 Kilobyte = 1024 × 8 Bits = 8192 Bits.
- Geopbyte containing 1024 Brontobytes is the largest storage unit.
|
118. The term bit is the short form of
(a) Megabyte
(b) Binary Language
(c) Binary Digit
(d) Binary Number
[U.P. Lower Sub. (Mains) 2013]
Ans. (c) Binary Digit
- A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1.
|
119. The length of a word in computers is measured by –
(a) Bits
(b) Byte
(c) Millimetre
(d) Metre
[U.P. U.D.A./L.D.A. (Mains) 2010]
Ans. (a) Bits
- The length of a word in computers is measured in bits.
- 8 Bits = 1 Byte
- 1024 Byte = 1 Kilobyte
- 1024 kilobyte = 1 Megabyte
|
120. 1024 kilobytes are equal to :
(a) 1 megabyte
(b) 1 gigabyte
(c) 10 kilobytes
(d) 1024 bytes
[M.P.P.C.S. (Pre) 2016]
Ans. (a) 1 megabyte
- The right answer is 1 Megabyte. This is equivalent to 1024 Kilobytes.
- A bit is the smallest unit of computer data.
|
121. One kilobyte is equal to
(a) 1000 bytes
(b) 1000 bite
(c) 1024 bytes
(d) 1000 words
[U.P.P.C.S. (R.I.) 2014, Uttarakhand P.C.S. (Pre) 2005, Uttarakhand P.C.S. (Mains) 2002]
Ans. (c) 1024 bytes
- One kilobyte (KB) is equal to 1,024 bytes.
|
122. 1 kilobyte is equal to :
(a) 1000 bytes
(b) 1008 bytes
(c) 1111 bytes
(d) 1024 bytes
[U.P. Lower Sub. (Mains) 2015]
Ans. (d) 1024 bytes
- One kilobyte (KB) is equal to 1,024 bytes.
|
123. In a Binary system, one kilobyte (1 KB) is equal to
(a) 1024 Byte
(b) 1024 Megabyte
(c) 1024 Gigabyte
(d) None of the above
[U.P. P.C.S. (Mains) 2017]
Ans. (a) 1024 Byte
- One kilobyte is the same as 1024 bytes. A “nibble” is one half of a byte.
- A bit is the smallest amount of memory and it stands for “binary digit”.
|
124. Choose the smallest memory size unit-
(a) K B
(b) MB
(c) G B
(d) TB
[M.P.P.C.S. (Pre) 2015]
Ans. (a)
- Computer information is made up of 0s and 1s, which are also known as bits. When 8 bits are put together, it’s called a byte.
- 1 Byte = 8 bits
- 1 Kilobyte (KB) = 1024 Bytes
- 1 Megabyte (MB) = 1024 Kilobyte
- 1 Gigabyte (GB) = 1024 Megabyte
- 1 Terabyte (TB) = 1024 Gigabyte
|
125. Which of the following relations is not correct?
(a) 1 Byte = 8 Bits
(b) 1 Kilobyte = 1024 Bytes
(c) 1 Gigabyte = 1024 Kilobytes
(d) 1 Terabyte = 1024 Gigabytes
[U.P. R.O./A.R.O. (Pre) 2021]
Ans. (c) 1 Gigabyte = 1024 Kilobytes
- 1 Byte = 8 bits
- 1 Kilobyte (KB) = 1024 Bytes
- 1 Megabyte (MB) = 1024 Kilobyte
- 1 Gigabyte (GB) = 1024 Megabyte
- 1 Terabyte (TB) = 1024 Gigabyte
|
126. 1 MB memory is –
(a) 1024 Kilobytes
(b) 210 Byte
(c) 1024 Kilobits
(d) 1000 Kilobytes
[Uttrakhand U.D.A./LDA (mains) 2006]
Ans. (a) 1024 Kilobytes
- One megabyte (MB) of memory is equal to 1,000 kilobytes (KB). It’s also equal to 1,024 kilobytes, or 1,048,576 bytes.
|
127. In computer language how many bytes are there in one megabyte?
(a) 1,00,000
(b) 10,00,000
(c) 10,24,000
(d) 10,48,576
[M.P.P.C.S. (Pre) 2005]
Ans. (d) 10,48,576
- 1 megabyte = 1024 kilobyte
= 1024 × 1024 byte
= 10,48,576 bytes (approx. 1.05 million bytes)
|
128. A million bytes is approximately –
(a) Gigabyte
(b) Kilobyte
(c) Megabyte
(d) Terabyte
[M.P.P.C.S. (Pre) 2008]
Ans. (c) Megabyte
- A megabyte (MB) is about 1 million bytes. A megabyte is also about 1000 kilobytes (KB).
|
129. The term MB is used for –
(a) Magnetic Bits
(b) Mega Bytes
(c) Mega Bits
(c) None of the above
[Uttarakhand P.C.S. (Pre) 2006]
Ans. (b) Mega Bytes
- 8 bits make up one byte. At least two bits are put together to form a binary word. MB stands for Megabyte.
- 1 Bit = 0 or 1
- 1 Byte = 8 Bits
- 1 Kilobyte = 1024 Bytes
- 1 Megabyte = 1024 Kilobytes
|
130. Unicode encoding scheme represents a character as a group of –
(a) 16 bits
(b) 4 bits
(c) 8 bits
(d) 12 bits
[R.A.S/R.T.S. (Pre) 2013]
Ans. (a) 16 bits
- Unicode represents each character by 2 bytes or 16 bits.
|
131. The basic unit of quantum information is :
(a) BIT
(b) BYTE
(c) GIGABIT
(d) QUBIT
[Jharkhand P.C.S. (Pre) 2021]
Ans. (d) QUBIT
- In quantum computing, a qubit is the smallest unit of information, similar to the regular bits used in computers.
- It is a two-state system, like the spin of an electron, which has two levels of spin up and spin down.
|
132. Consider the following statements and select the correct answer from the codes given below :
(1) Dot net (.Net) framework has been developed by Microsoft.
(2) Java is an open-source technology developed by Sun Microsystems.
Codes :
(a) Only 1 is correct
(b) Only 2 is correct
(c) Both 1 and 2 are correct
(d) None of these
[M.P.P.C.S. (Pre) 2008]
Ans. (c) Both 1 and 2 are correct
- Microsoft developed the Dot Net Framework, a software program that works mainly on Windows.
- James Gosling created Java in 1995 and made it a main part of Sun Microsystem’s Java platform.
|
133. An exclusively private network used by employees of a company in a single location will be classified as –
(a) Internet
(b) Local Area Network
(c) Wide Area Network
(d) ARPANET
[M.P.P.C.S. (Pre) 2008]
Ans. (b) Local Area Network
- A LAN is a group of computers connected together in a small area like a home, school, lab, or office.
- These computers are connected by using special network cables.
|
134. LAN means –
(a) Large Area Network
(b) Local Area Network
(c) Logical Area Network
(d) None of these
[Uttarakhand U.D.A./L.D.A. (mains) 2006]
Ans. (b) Local Area Network
- LAN means Local Area Network.
- It is a group of linked devices that are in the same place, such as a home, school, or workplace.
|
135. Ethernet is an example of
(a) MAN
(b) LAN
(c) WAN
(d) Wi-Fi
[M.P.P.C.S. (Pre) 2017]
Ans. (b) LAN
- Ethernet is a way of sending data over a Local Area Network (LAN). It is a type of protocol called IEEE 802.3.
|
136. In a database, the field is –
(a) Label
(b) Table of information
(c) Group of related records
(d) Category of information
[M.P.P.C.S. (Pre) 2008]
Ans. (d) Category of information
- In a database, a field is a category of information.
|
137. In relation to computers, ALU means :
(a) Algebraic Logic Unit
(b) Arithmetic Logic Unit
(c) Algebraic Local Unit
(d) Arithmetic Local Unit
[Uttarakhand P.C.S. (Pre) 2005]
Ans. (b) Arithmetic Logic Unit
- The ALU is the part of a computer’s processor that does calculations and logical operations based on instructions given.
|
138. In computer Dictionary, the letters CD is used for:-
(a) Compact disc
(b) Compressed disc
(c) Computerised data
(d) Compressed data
[R.A.S./R.T.S. (Pre) 2003]
Ans. (a) Compact disc
- CD – Compact Disc; Some other abbreviations are :-
- E-mail – Electronic Mail, IC – Integrated Circuit, IP – Internet Protocol, LAN – Local Area Network, CAD – Computer Aided Design.
|
139. Computer hardware, which can store a very large quantity of data, is called :
(a) Magnetic tape
(b) Disk
(c) Both (a) and (b)
(d) None of the above
[Uttarakhand P.C.S. (Pre) 2002, U.P.P.C.S. (Pre) 1999]
Ans. (c) Both (a) and (b)
- Both magnetic tape and magnetic disk can store a lot of data, but magnetic disk can store more.
- Before the hard drive was invented, magnetic tapes were commonly used.
|
140. A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
1. D9D supports Standard Definition video while BD supports +igh Definition video.
2. Compared to a DVD, the BD format has several times more storage capacity.
3. The thickness of BD is 2.4 mm while that of DVD is 1.2 mm.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2
(c) 2 and 3
(d) 1, 2 and 3
[I.A.S. (Pre) 2011]
Ans. (b) 1 and 2
- Blu-ray Discs (BD) are disks that can store digital data.
- They are designed to replace DVDs, which can only store videos with standard definition.
- The size of a Blu-ray disc is the same as a DVD or CD, which is 120mm in diameter and 1.2mm thick.
- Each disc can usually hold 25GB of data, while dual layer discs (50GB) are most often used for movies.
- Some BD-XL re-writer drives can use triple layer discs (100GB) and quadruple layers (128GB).
|
141. Which of the following is not computer hardware?
(a) Printer
(b) Compiler
(c) Mouse
(d) Keyboard
[Uttarakhand U.D.A./L.D.A. (Mains) 2006]
Ans. (b) Compiler
- A compiler is not a part of a computer’s hardware.
- It is a type of program that takes instructions written in a programming language and turns them into a code that the computer’s processor can understand and use.
|
142. Which of the following is not hardware?
(a) Magnetic tape
(b) Printer
(c) Assembler
(d) CRT
[Uttarakhand Lower Sub. (Pre) 2010]
Ans. (c) Assembler
- Assembler is not a piece of hardware, it is a type of software which changes basic computer instructions into a pattern of ones and zeros that the computer’s processor can use to carry out its basic functions.
|
143. Which of the following is not computer hardware?
(a) Mouse
(b) Printer
(c) Monitor
(d) Excel
[M.P.P.C.S. (Pre) 2013]
Ans. (d) Excel
- The physical parts of a computer that we can see and feel are called computer hardware.
- This includes the monitor, CPU, keyboard, mouse, printer, and scanner.
- Microsoft created the software program called Excel.
|
144. Which of the following is not hardware?
(a) Printer
(b) Keyboard
(c) Mouse
(d) Operating system
[Uttarakhand P.C.S. (Pre) 2006]
Ans. (d) Operating system
- The operating system is a type of computer program, not a physical piece of equipment. Printers, mice, and keyboards, however, are pieces of hardware.
|
145. Which of the following is a software –
(a) Transistor
(b) Integrated circuit
(c) Compiler
(d) Device for inputting data
[Uttarakhand Lower Sub. (Pre) 2010]
Ans. (c) Compiler
- The compiler is a type of computer system software that translates programming language into a format that the computer can understand.
|
146. Which of the following is not open-source software?
(a) Internet explorer
(b) Google Chrome
(c) Linux
(d) Open of ce
[Jharkhand P.C.S. (Pre) 2016]
Ans. (a) Internet explorer
- Internet Explorer is a closed source software while others are open source software.
|
147. Which of the following is not offered as an independent service layer in cloud computing?
(a) Hardware as a service
(b) Platform as a service
(c) Software as a service
(d) Infrastructure as a service
[Uttarakhand P.C.S. (Pre) 2016]
Ans. (a) Hardware as a service
- Hardware as a Service is not available as a separate service on cloud computing.
- The other choices (c, b and d) are available as separate services on cloud computing and are known as Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS).
|
148. Index hole is related to –
(a) Hard Disk
(b) Floppy Disk
(c) Printer
(d) CPU
[U.P. Lower Sub. (Mains) 2013]
Ans. (b) Floppy Disk
- A small index hole in the floppy disk is used for referencing the beginning point of the stored data.
|
149. IRQ 6 is commonly assigned to :
(a) Sound Card
(b) Com 1
(c) Floppy Drive Controller
(d) LPT 1
[U.P. Lower Sub. (Mains) 2015]
Ans. (c) Floppy Drive Controller
- Usually, a Floppy Drive Controller is connected to Interrupt Request Line 6 on a motherboard. This is a common feature found on most motherboards.
|
150. A Program that controls a computer’s basic functions?
(a) Operating System
(b) Mother Board
(c) Hard Drive
(d) CPU
[U.P. Lower Sub. (Mains) 2013]
Ans. (a) Operating System
- Operating systems are a must-have for any computer or electronic device.
- They are responsible for carrying out basic tasks such as managing memory, devices, and processes, but nowadays they can do much more, like playing movies, streaming music, and browsing the internet.
|
151. The brain of the computer is known as :
(a) Memory
(b) Keyboard
(c) Hard Disk
(d) C.P.U.
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (d) C.P.U.
- The Central Processing Unit, or CPU, is often called the processor or the brain of the computer. It is where most of the calculations occur.
|
152. The most important part of a computer is –
(a) C.P.U.
(b) Keyboard
(c) Disc
(d) Printer
[U.P.P.C.S.(Pre) 2012]
Ans. (a) C.P.U.
- The C.P.U. is the most important component of a computer.
- This is where the computer processes and evaluates the given information.
|
153. CPU stands for –
(a) Control Processing Unit
(b) Central Processing Unit
(c) Current Processing Unit
(d) None of these
[Uttarakhand Lower Sub. (Pre) 2010]
Ans. (b) Central Processing Unit
- The CPU is the main part of a computer that does most of the work. Its name stands for “Central Processing Unit”.
|
154. Which of the following statements is not correct?
(a) Email – refers to Electronic mail
(b) WWW – refers to the World Wide Web
(c) CPU – refers to the Control Processing Unit
(d) ALU – refers to Arithmetic Logic Unit
[U.P. R.O./A.R.O. (Pre) 2021]
Ans. (c) CPU – refers to the Control Processing Unit
- The CPU is the main part of a computer, like its brain. It does most of the work and makes calculations. The other three options are also correct.
|
155. Which of the following software is used for word processing?
(a) Page-Maker
(b) Word-Star
(c) MS Word
(d) All of the above
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (d) All of the above
- A word processor is a type of computer program that is used to create, change, and organize words in documents.
- Microsoft Word is a widely used word processor from Microsoft Office.
- Wordstar is another word processor created by Micro Pro International and Page Maker is a program by Adobe.
|
156. ‘Microsoft Word’ is an example of –
(a) An operation system
(b) An input device
(c) A processing device
(d) Application software
[M.P.P.C.S. (Pre) 2010]
Ans. (d) Application software
- Application Software is the right answer. Microsoft created MS Word as an example of this kind of software.
- It lets people type and store documents. It also assists in creating documents.
|
157. MS Word is used for –
(a) Processing picture data
(b) Processing text data
(c) Processing numeric data
(d) None of the above
[Uttarakhand P.C.S. (Pre) 2006]
Ans. (b) Processing text data
- MS Word is a word processing software that is used to create and publish any printable text material.
|
158. Word processing, spreadsheet, and photo editing are examples of –
(a) Application software
(b) System software
(c) Operating system software
(d) Platform software
[M.P.P.C.S. (Pre) 2014]
Ans. (a) Application software
- Examples of application software include word processing, spreadsheets, and photo editing.
- Other types of application software include video and audio editing, desktop publishing, and Computer-Aided Design (CAD).
|
159. The basic unit of Excel spreadsheet where we enter data is known as :
(a) Tab
(b) Box
(c) Cell
(d) None of the above
[M.P.P.C.S. (Pre) 2016]
Ans. (c) Cell
- The basic unit of an Excel spreadsheet where data is entered is called the cell. It consists of a row and columns.
|
160. A Word document, video, or MP3 is a –
(a) Folder
(b) Template
(c) File
(d) Icon
[U.P. Lower Sub. (Mains) 2013]
Ans. (c) File
- Computer files have a name with two parts – a descriptive name and a file extension.
- The extension is part of the file name and shows what type of file it is.
- For instance, a .doc file is made by Microsoft Word.
- A .mp3 file is a music file that can be opened by any program that works with MP3s.
|
161. Which one of the following is the main electronic component of the third-generation computer?
(a) Electronic tube
(b) Transistor
(c) Optical fiber
(d) Integrated circuit
[U.P. P.C.S. (Mains) 2016]
Ans. (d) Integrated circuit
- Integrated circuits (ICs) are used in the third generation of computers.
- This was invented by Jack Kilby and Robert Noyce.
- It is made up of electronic components such as transistors, resistors, and capacitors, all placed together on a tiny piece of semiconducting material.
|
162. Miniaturization of present-day computers has been possible due to the use of –
(a) Transistors
(b) Integrated Circuit Chips
(c) Nano-materials
(d) Super Conductors
[U.P.P.C.S. (Pre) 2007]
Ans. (b) Integrated Circuit Chips
- Integrated circuits are a group of electronic circuits on a single small plate usually made of silicon.
- They were invented in 1958 and are now used instead of transistors in computers.
- This means that the miniaturization of modern computers is possible because of these integrated circuit units.
|
163. The IC chips are made of –
(a) Fiber
(b) Semiconductor
(c) Plastic
(d) None of the above
[Uttarakhand P.C.S. (Pre) 2007]
Ans. (b) Semiconductor
- Integrated circuit chips are composed of semiconductor material, typically silicon.
- These chips are basically a set of electronic circuits on one small, flat piece of silicon.
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164. What is the material used in the manufacturing of IC chips in computers?
(a) Silicon
(b) Copper
(c) Steel
(d) Plastic
[R.A.S./R.T.S.(Pre) 2012, M.P.P.C.S. (Pre) 2000, U.P.P.C.S. (Mains) 2004]
Ans. (a) Silicon
- Silicon is used to make IC chips for computers.
- It is a semiconductor and in 1958 J.S. Kilby created the IC chip, which is a complete circuit on one chip.
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165. In computers, the chip is made up of :
(a) A thin layer of cobalt
(b) A thin layer of silicon
(c) A thin layer of silver
(d) A thin layer of copper
[Chhattisgarh P.C.S. (Pre) 2019]
Ans. (b) A thin layer of silicon
- Computer chips are made of a thin layer of silicon.
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166. In the integrated circuit, the chip of the semiconductor used is made up of the:
(a) Beryllium
(b) Carbon
(c) Silicon
(d) Zircon
[Uttarakhand P.C.S. (Pre) 2006]
Ans. (c) Silicon
- The semiconductor chip used in an integrated circuit is made up of silicon.
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167. Which one of the following is the newest substance being used in the production of computer chips?
(a) Carbon
(b) Gallium Arsenide
(c) Gallium Silicate
(d) Silicon
[U.P. U.D.A./L.D.A. (Mains) 2010]
Ans. (d) Silicon
- Silicon is the most recent material used to make computer chips, also known as IC chips.
- These chips can be used to save a lot of information in a small area.
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168. ICs are classified on the basis of :
(a) Number of transistors
(b) Type of computers
(c) Manufacturing Company
(d) Number of diodes
[U.P. Lower Sub. (Mains) 2015]
Ans. (a) Number of transistors
- ICs can be classified on the basis of their chip size as given below :
- Small Scale Integration (SSI) – 3 to 30 transistors/chips
- Medium Scale Integration (MSI) – 30 to 300 transistors/chips
- Large Scale Integration (LSI) – 300 to 3,000 transistors/chip
- Very Large Scale Integration (VLSI) – more than 3000 transistors/chips.
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169. Which of the following statements is correct?
(a) Modem is a software.
(b) Modem helps in stabilizing the voltage.
(c) Modem is the operating system.
(d) Modem converts the analog signal into digital signal and vice-versa.
[R.A.S./R.T.S.(Pre) 2013]
Ans. (d) Modem converts the analog signal into digital signal and vice-versa
- The modem stands for Modulator/Demodulator.
- It takes a digital signal and turns it into an analog signal, and also takes an analog signal and turns it into digital.
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170. The device by which data are transferred by telephone with the help of binary signals is –
(a) Modem
(b) Analog
(c) Monitor
(d) O.C.R.
[U.P.P.C.S. (Pre) 2002, U.P.P.C.S. (Mains) 2007]
Ans. (a)Modem
- A modem is a piece of hardware that helps a computer to send and receive information over a telephone line.
- It changes digital signals into analog signals and vice versa, which allows computers to communicate with each other through telephone lines.
- Modulation and demodulation are processes that the modem performs.
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171. For sending and receiving data between computers around the world through telephone lines, we need:
(a) FAX
(b) Modem
(c) Scanner
(d) Hub
[U.P. Lower Sub. (Mains) 2015]
Ans. (b) Modem
- A Modem is a piece of hardware which allows a computer or other device like a router or switch to access the internet.
- It takes an analog signal from a telephone or cable wire and changes it into digital data (1s and 0s) that a computer can understand.
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172. Which system or arrangement connects microcomputers with telephones?
(a) VDU
(b) MODEM
(c) UNIX
(d) All the above
[U.P. Lower Sub. (Pre) 2013]
Ans. (b) MODEM
- A modem is a piece of computer hardware that helps a computer connect to telephone lines.
- It changes digital information into an analog format so it can be sent over the telephone network, and then changes it back to digital when it is received.
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173. Such a device that converts data into impulses and transmits it through the terminal to computer or computer to terminal over the telephone line is–
(a) Magnetic disc
(b) Microcomputer
(c) C.D. Rom
(d) Modem
[U.P. Lower Sub. (Pre) 2013, U.P.U.D.A./L.D.A. (Pre) 2002]
Ans. (d) Modem
- A modem is a device or program that helps a computer to send data through telephone or cable lines.
- Digital information is stored on the computer and analog waves are used for sending information through telephone lines.
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174. A modem is a hardware device that interfaces –
(a) CPU and CRT
(b) Input and output devices
(c) Printer and main memory
(d) Telephone lines and computer equipment
[Uttarakhand Lower Sub. (Pre) 2010, Uttrakhand U.D.A./L.D.A. (mains) 2006]
Ans. (d) Telephone lines and computer equipment
- A modem is a piece of hardware that lets a computer, broadband network or wireless router connect to the internet.
- It takes the signals from an internet service provider and turns them into a format that devices can use.
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175. The form of information signal used in sending faxes and email is :
(a) Digital signal
(b) Analog and Digital signal both
(c) None of Analog and Digital signal
(d) Analog signal
[Jharkhand P.C.S. (Pre) 2021]
Ans. (b) Analog and Digital signal both
- Faxes and emails are sent through phone lines using both analog and digital signals.
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176. Which of the following is not a connecting device?
(a) Router
(b) Hub
(c) Switch
(d) All of these
[M.P.P.C.S. (Pre) 2014]
Ans. (*)
- MPPCS gave an extra question about the devices used to connect things:
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177. Celeron, Pentium, and Core series are of –
(a) Computer RAM
(b) Computer microchips
(c) Computer processor
(d) All of the above
[R.A.S./R.T.S.(Pre) 2013]
Ans. (c) Computer processor
- Celeron, Pentium, and Core are the series of computer processors.
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178. ROM is a memory –
(a) To read-only
(b) To write only
(c) To read and write both
(d) None of these
[Uttrakhand U.D.A./LDA (mains) 2006]
Ans. (a) To read-only
- ROM stands for Read-only memory. Information that is saved onto a ROM chip cannot be deleted and can only be read.
- Unlike RAM (Random-access memory), the data stored in ROM stays in the memory even when the computer is turned off.
- ROM is known as being non-erasable, and RAM is erasable.
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179. In a computer, the permanent memory is called –
(a) RAM
(b) ROM
(c) CPU
(d) CDROM
[U.P.P.C.S. (Mains) 2012, Uttarakhand Lower Sub. (Pre) 2010]
Ans. (b) ROM
- ROM is like the long-term memory of a computer. The data stored in ROM stays in the computer even after it is shut off.
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180. A means of specifying the location of data in memory is called–
(a) Accumulator
(b) Address
(c) LDA
(d) RAM
[Uttarakhand Lower Sub. (Pre) 2010]
Ans. (b) Address
- A means of specifying the location of data in memory is called address.
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181. CD ROM stands for :
(a) Core Disc Read Only Memory
(b) Compact Disc Read Only Memory
(c) Circular Disc Read Only Memory
(d) None of the above
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (b) Compact Disc Read Only Memory
- A Compact Disc Read-Only Memory (CD-ROM) is a type of disc that can’t be erased and can store up to 700 MB of data.
- These discs usually come pre-loaded and are not able to be filled with new data.
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182. In computer terminology, RAM stands for –
(a) Recent and Ancient Memory
(b) Random Access Memory
(c) Read And Memorise
(d) Recall All Memory
[Uttarakhand P.C.S. (Pre) 2002-2003]
Ans. (b) Random Access Memory
- RAM stands for random-access memory.
- It is considered a type of temporary memory and only works when the computer is running.
- When the computer is turned off, any information stored in RAM is lost or erased.
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183. A name for the short-term memory of the computer that is lost when the computer is turned off –
(a) CPU
(b) Hardware
(c) Processor
(d) RAM
[U.P. Lower Sub. (Mains) 2013]
Ans. (d) RAM
- Random Access Memory can only keep data while the computer is on.
- When the computer is turned off, the data is lost.
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184. Which is not a type of secondary memory?
(a) Solid State Drive
(b) Hard Disk
(c) Random Access Memory (RAM)
(d) USB Pen Drive
[M.P. P.C.S. (Pre) 2020]
Ans. (c) Random Access Memory (RAM)
- Solid State Drive, Hard Disk and USB Pen Drive are types of memory that attach to a computer, while RAM is a type of memory that is part of the computer itself.
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185. Which of the following is an extremely fast, small memory between CPU and main memory?
(a) Main RAM and ROM
(b) Cache memory
(c) Secondary memory
(d) None of the above
[Uttarakhand P.C.S. (Pre) 2016]
Ans. (b) Cache memory
- Cache memory is a very fast, tiny memory located between the CPU and main memory.
- It stores frequently used data from a computer or program for the CPU to access.
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186. Which of the following memories has the shortest access time?
(a) Cache memory
(b) Magnetic bubble memory
(c) Magnetic core memory
(d) Random access memory
[M.P.P.C.S. (Pre) 2010]
Ans. (a) Cache memory
- Cache memory, also known as CPU memory, is a type of RAM that a computer can use more quickly than regular RAM.
- It has the fastest access time and the greatest data transfer rate compared to other storage levels.
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187. Which of the following is the fastest memory?
(a) Hard disk
(b) DVD ROMS
(c) Cache memory
(d) Static RAM
[U.P. Lower Sub. (Mains) 2013]
Ans. (c) Cache memory
- Cache memory is the quickest memory in a computer.
- It keeps data and instructions that the CPU uses often.
- Cache memory works faster than RAM because it is located near the processor and works at a higher speed.
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188. Which one of the following is not a correct statement about ‘Flash memory’?
(a) It is used for information storage in devices like digital cameras, laptops, etc.
(b) It can operate in the extended temperature range of – 40°C to + 85°C.
(c) It is cheaper than normal mechanical disk drives.
(d) It consumes less power.
[U.P.P.C.S. (Mains) 2004]
Ans. (c) It is cheaper than normal mechanical disk drives
- Flash memory is a type of memory used in computers and other digital devices that remains even when the power is turned off.
- Pen drives, digital cameras, and memory cards are examples of flash memory.
- It is more energy efficient than a hard drive but more expensive per unit of storage.
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189. COBOL is :
(a) Coal ash
(b) Computer language
(c) The new cannon
(d) Special
[M.P.P.C.S. (Pre) 1990]
Ans. (b) Computer language
- COBOL stands for Common Business Oriented Language. It is a computer language developed for professional interest.
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190. ORACLE is :
(a) An operating system
(b) Word processing software
(c) Database software
(d) A mixture of (a) and (b)
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (c) Database software
- Oracle is a type of computer software created and sold by Oracle Corporation.
- It’s used to manage databases, allowing people to store and analyze data.
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191. Which one of the following is not the language of computers?
(a) BASIC
(b) C
(c) FAST
(d) FORTRAN
[41st B.P.S.C. (Pre) 1996]
Ans. (c) FAST
- BASIC is a computer language which stands for ‘Beginner’s All Purpose Symbolic Instruction Code’.
- FORTRAN is another computer language which stands for ‘Formula Translation’, and C is yet another.
- FAST, however, is not a computer language.
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192. Which one of the following is not a language of the computer ?
(a) JAVA
(b) C++
(c) ROM
(d) PASCAL
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (c) ROM
- ROM is not a computer language, it is a type of memory. The other options are languages used by computers.
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193. Which is not a computer language?
(a) Basic
(b) C++
(c) Java
(d) Paintbrush
[M.P.P.C.S. (Pre) 2015]
Ans. (d) Paintbrush
- Paintbrush is not a computer language while C++, JAVA, and BASIC are computer languages.
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194. Which one of the following is a computer high-level programming language?
(a) COBOL
(b) PASCAL
(c) BASIC
(d) All of the above
[M.P.P.C.S. (Pre) 2019]
Ans. (d) All of the above
- COBOL, PASCAL, and BASIC are all programming languages used for computers.
- Other examples are FORTRAN, Java, Python, and Visual Basic.
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195. Which one of the following is scientific computer language?
(a) BASIC
(b) COBOL
(c) FORTRAN
(d) PASCAL
[U.P.P.C.S. (Pre) 2002, 2003]
Ans. (c) FORTRAN
- FORTRAN is a type of computer language that was created by IBM.
- Its name comes from the phrase “Formula Translation”. It is a high-level language
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196. BASIC is a ……language?
(a) A procedural
(b) An object-oriented
(c) Both (a) and
(b) (d) None of the above
[U.P. Lower Sub. (Mains) 2013]
Ans. (a) A procedural
- Procedural programming languages include C, FORTRAN, PASCAL, and BASIC.
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197. JSP stands for
(a) Java Simple Pages
(b) Java System Protocol
(c) Java Server Pages
(d) Java Server Protocol
[M.P.P.C.S. (Pre) 2019]
Ans. (c) Java Server Pages
- JSP (Java Server Pages) is a set of tools which allow software developers to make web pages that change depending on HTML, XML, SOAP, or other types of documents.
- It was launched in 1999 by Sun Microsystems and is similar to PHP and ASP, but uses the Java language.
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198. The work of the assembler is –
(a) Convert basic language into machine language
(b) Convert high-level language into machine language.
(c) Convert assembly language into machine language
(d) Convert assembly language into high-level language.
[U.P.P.C.S. (Pre) 2005]
Ans. (c) Convert assembly language into machine language
- The main work of an assembler is to convert assembly language into machine language.
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199. The language that the computers can understand and execute is called :
(a) American language
(b) Machine language
(c) Cryptographic language
(d) None of the above
[Uttarakhand P.C.S. (Mains) 2002]
Ans. (b) Machine language
- Machine language is the basic language of computers.
- It only uses 0s and 1s. Computers can only understand this language, so no translation program is needed.
- It is also called machine code.
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200. The machine language of computers is based on :
(a) Abstract Algebra
(b) Matrix Algebra
(c) Boolean Algebra
(d) Linear Algebra
[R.A.S./R.T.S. (Pre) 2018]
Ans. (c) Boolean Algebra
- The language computers use is based on Boolean algebra.
- This is a type of math that works with statements and their “true” or “false” values.
- Instead of regular algebra which works with numbers, Boolean algebra works with 0s and 1s.
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