Computer System

Random Access Memory - Volatile, temporary memory to store data while the PC is running and is erased when computer turns off.

• RAM
  

Software used to control the computers boot up and its peripheral equipment.

• Operating System (OS)
  

Brain of the computer that performs instructions defined by software.

• Central Processing Unit (CPU)
  

People who interact with the computer system, they are also called the end users.

• Computer Operator
• Computer Technician
• System Analyst
• System Programmer

Web browsers, word processors, accounting programs.

• Application software examples

An internal card the enables high quality pictures on the monitor.

• Video card
  

Which of the following is machine independence program?

• High level language
• Low level language
• Assembly language
• Machine language

What are the three decisions making operations performed by the ALU of a computer?

• Grater than
• Less than
• Equal to
• All of the above

The hard drive saves data

• permanently

Attachment

• A file that is sent along with an email message is called a(n)...

The decimal number 9 is represented by ________ in binary.

• 1001

If volatile means that data is lost when the power is turned off, which term means that it is stored even without power?

• non volatile

John Napier invented Logarithm in

• 1614
• 1617
• 1620
• None of above

8. RAM refers to "Random Access Memory'

• True

The program you are using and the data you are working with.

• What would you find on a network?

A computer consists of

• A central processing unit
• A memory
• Input and output unit
• All of the above

Which of the following devices is an input and an output device?

• Keyboard
• Touch sensitive screen
• Mouse
• Printer

"Father of the computer", Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs.

• Charles Babbage
  

Which one is the largest space?

• Kilobyte
• Petabyte
• Terrabyte
• Gigabyte

The most common and widely used computer today which you can see in homes, schools, and in most businesses.

• Microcomputers
• Handheld Computers

Tells the operating system what type of program it needs to open.

• What does a file extension tell your computer?

Internet Protocol

• What does IP stand for?

Types of storage devices

In a colour bit mapped graphic, if you use 4 bits for each pixel how many colours can you represent?

• 32
• 8
• 16
• 4

Microsoft Excel document

• A file extension of .xlsx means that the file contains what?

It serves as a gateway to transfer data between networks.

• What is a router for?

What is an output device?

• An output device is a device that converts the results from the processor into data we can see or hear.
• An output device is a device that allows the user to save data to and to load data from.
• An output device is part of the processor of a computer.
• An output device is a device that allows the user to give the computer data.

What type of data stored in the RAM.

• Secondary storage
• Temporary data
• Operating system
• Permanent data

Denary number system has base

• 16
• 8
• 10
• 2

What is the encrypted text for "computer" when a Caesar cipher with a key value of A=d is used?

• eqorwvgt
• frpsxwhu
• iusvazkx
• frpsswhu

4. Who is usually referred to as the 'Father of Computers' ?

• Charles Babbage

Anytime access, ease of use, backup, document sharing.

• What are the benefits of using a cloud storage option?

These are set of guidelines and rules to follow when using the hardware, the software applications, and the data.

• Algorithms
• Instructions
• Procedures
• Programs

Uniform Resource Locator

• What does URL stand for?

A device that enables the computer to send and receive electronic communication signals for internet and email.

• Modem
  

Bit stands for

• Binary digits
• Bit of system
• A part of byte
• All of above

Full form of GUI is

• Graphical User Idea
• Graphical User Interface
• Graphics Uses Interface
• Graphical Uses Idea

A bit ______ graphic is one way of storing an image on a computer.

• map

The basic operations performed by a computer are

• Arithmetic operation
• Logical operation
• Storage and relative
• All of the above

It is a computer output device that produces a permanent or hard copy of documents stored in the computer.

• Monitor
• Printer
• Scanner

LAN

• In which of these places might you be most likely to find a peer-to-peer network?

The two kinds of main memory are:

• Primary and secondary
• Random and sequential
• ROM and RAM
• All of above

Which of the following is not input unit device?

• Scanner
• Camera
• Plotter
• Digitizer

These are the facts and facet of records that we input into the computer.

• Data
• Files
• Record
• Word

They use computers to teach learners better and faster.

• Teachers

Tick the backing storage devices

The largest number that can be represented by 4 bits is:

• 12
• 13
• 15
• 31

Hacking

• The art of cracking into a computer to steal information is called?

Which computer was considered the first electronic computer until 1973 when court invalidated the patent?

• ENIAC
• MARK I
• Z3
• ABC

The ALU of a computer responds to the commands coming from

• Primary memory
• Control Unit
• External memory
• Cache memory

A group of computers that are connected together in order to share resources quickly and efficiently.

• What is a network?

Which of the following is true of ROM?

• All data/instructions are lost when the power is turned off
• Data/instructions can be edited when required
• It is connected externally to the computer system
• Contains the bootstrap

Choose the input device listed below

• Keyboard
• Speakers
• USB Stick
• Monitor

Tick two of the following options that are non-volatile

A physical connection between the microprocessor memory and other parts of the microcomputer is known as

• Path
• Address Bus
• Route
• All of the above

Video file

• A file extension of .mp4 means that the file contains what?

Microsoft Word is an example of ___________ software.

• Application Software
• System Software
• Software
• Operating System

...is a computer program that contains the set of instructions needed to tell the hardware what to do

• Hardware
• Input device
• Processing
• Software

Where to find resources on the host. The host is the webpage.

• What does the location in a URL identify?

Full form of CPU is

• Control Processing Unit
• Central processing Unit
• Central Processing Unix
• Central Programming Unit

Tick the input devices

Uses your internet to upload and save your data to an online space.

• Cloud Storage

AI and ML stands for

• Art information and Man Language
• Artificial intelligence andMajor Language
• Artificial intelligence andmail
• Artificial Intelligence and Machine Learning

Which of the following is not a form of data?

• Numbers and characters
• Images
• Sound
• None

From the following which is not secondary memory device

• Tape Drive
• Solid state driver
• Touch screen
• Memory Card

It is a collection of computer network that link billions of different computers around the world.

• Internet
• Bluetooth

There is no separate code for every alphabet, color, number, symbol

• True
• False

Which of the following machine was not invented by Charles Babbage?

• Tabulating Machine
• Analytical Engine
• Difference Engine
• Both C and D

Resolution of an image is dependent on

• color
• pixel per inch
• shape
• screen

Which of the following terms is the most closely related to main memory?

• Non volatile
• Permanent
• Control unit
• Temporary

It the most powerful computer available.

• Mainframe Computer
• Super Computer
• Mid-range Computer

Which one do you like?

• Option 1
• Option 2
• Option 3
• Option 4

_Select all examples of input devices below.

From the following which is not an input device

• Scanner
• Touch Screen
• Mouse
• Printer

Keyboard, screen, mouse, game pads, scanner.

• Input device examples

3. The keyboard layout designed by Sholes is :

• QWERTY

What is the Caesar's Cipher?

• A way of password protecting a file
• A simple encryption method that involves replacing each letter in a message with one ahead or behind in the alphabet
• A complex encryption method using two keys
• A complex encryption method using four keys

From the following which is an output device?

• 3D printer
• Keyboard
• Mouse
• Scanner

Read Only Memory- Permanent memory that cannot be changed. It makes the BIOS function. Checks your OS.

• ROM
  

What component is this...?

• CPU
• Hard Drive
• Motherboard
• RAM stick

True

• The Internet is considered a WAN.

Devices used to insert data into a computer (keyboard, mouse, microphone, scanner, voice recognition)

• Input
  

What form of data does a computer store?

• Alphanumeric
• primary
• Binary
• High level

A computer disc usually used to store video/movies.

• DVD
  

CD-ROM is a

• Semiconductor memory
• Memory register
• Magnetic memory
• None of above

Software has two types--------

• Application and hardware
• Keyboard and Operating system
• System software and Application software
• Operating system and Printer

What produces useful information out of data?

• Computer
• Processing
• Programming
• none of above

-------------is used to measure memory

• Kmph
• mtr
• Mb and Gb
• cm/in

7. What is the word 'pixel' short for?

• picture element

The CPU (central Processing Unit):

• a) sends data to be processed
• b) performs arithmetic and logic functions
• c) processes raw data into information
• d) does all of the above

Which of the following is the largest?

• 0.2 Gigabytes
• 100 Megabytes
• 1000 Kilobytes
• 1,000,000 bits

9. Which of the following is generally used as a computer input device?

• keyboard

It is the physical part of computer which includes the input and output devices.

• CPU
• Hardware
• Input Unit
• Software

Which of the following memories allows simultaneous read and write operations?

• ROM
• RAM
• EPROM
• None of above

RAM saves data

• temporarily

Robots can be used in automations

• True
• False

Any invention including tools, machines, techniques, and power sources.

• Technology

The data is not saved.

• Which statement best describes what happens to the temporary working memory (RAM) of a computer when it is shut down?

Which operation is not performed by computer

• Inputting
• Processing
• Controlling
• Understanding

Which of the following is found in RAM when the computer is being used?

• Software currently in use
• The bootstrap
• The motherboard
• A USB stick

Operating system

• What controls a computer's basic operations?

2. The term 'GUI' stands for...

• Graphical User Interface

Which sentence below best defines encryption?

• Encryption is the process of converting information or data into a code to prevent unauthorised access.
• Encryption is the process of converting information or data into a code to prevent authorised access.
• Encryption is the process of putting a password on a file to protect it.
• Encryption is the process of slowing down data transfer.

Most computer system have which six components?

• Casing, Hard Drive, RAM, Graphics Card, CPU
• Casing, Hard Drive, RAM, Motherboard, Graphics Card, CPU
• Casing, Hard Drive, RAM, Motherboard, Power Supply Unit, CPU
• Power Button, Graphics Card, USB ports, Bluetooth Antenna

Devices that projects images, gives sound, and basically gives out the info from the computer (monitor, printer, projector, speakers)

• Output

This is when the computers are linked to a network and enables sharing of information and files.

• Connectivity
• Data
• Hardware
• Software

Choose the output device listed below

• Microphone
• Speakers
• Hard Disk Drive
• Mouse

An output device used to transmit sound.

• Speakers

WAN

• Which of the following are you likely to find between multiple school buildings in an city wide school district?

The main purpose of a computer is to process data. The processing stage takes place within the__________________.

• Keyboard
• RAM
• CPU
• Printer

When was Pascaline invented?

• 1617
• 1620
• 1642
• 1837

Who is the founder of Microsoft?

• Bill Gates
• Steve Jobs
• Grace Hopper
• Ada Lovelace

A byte consists of

• One bit
• Four bits
• Eight bits
• Sixteen bits

How many elements a computer system have?

• 4
• 5
• 6
• None of the above

It is a computer input device modeled from the keys of typewriter.

• Game Pad
• Mouse
• Keyboard

Where information not being used by the CPU is stored.

• Long-Term Memory

It is a free, online photo-sharing application and social network platform that was acquired by Facebook in 2012.

• Twitter
• Facebook
• Instagram
• Tumbler

What is a backing storage device?

• A backing storage device is a device that converts the results from the processor into data we can see or hear.
• A backing storage device is a device that allows the user to save data to and to load data from.
• A backing storage device is part of the processor of a computer.
• A backing storage device is a device that allows the user to give the computer data.

Software in computer

• Enhances the capabilities of the hardware machine
• Increase the speed of central processing unit
• Both of above
• None of above

Carbon Copy; Blind Carbon Copy

• What do Cc and Bcc stand for?

An paste that is applied on the CPU to transfer the heat from the microprocessor to the heat sink/CPU fan.

• Thermal Compound
  

Convert 83 to binary

• 1010011

6. Which of the following is not a database program?

• MS-Word

Which of the following is not an input device?

• OCR
• Optical scanners
• Voice recognition device
• COM (Computer Output to Microfilm)

Which of the following are the best units of data on an external storage device?

• Bits
• Bytes
• Hertz
• Clock cycles

A disc usually used to store music files.

• CD ROM
  

Hardware is:

• a) a set of instructions
• b) the part of the computer system you can see and touch
• c) the electrical supply of the computer
• d) does all of the above

Information Technology merges the study of three areas. These includes Computer Science, Office Automation and ___________________________.

• Information communication technology

CPU

• Which component of a computer controls the entire system and is often called the brain of the computer?

Which of the following is true of RAM?

• All data/instructions are lost when the power is turned off
• Data/instructions are permanent
• It is connected externally to the computer system
• Contains the bootstrap

Operating system, editors, and debuggers comes under?

• System Software
• Application Software
• Utilities
• None of the above

10. 'WYSIWYG' is a great little computer word. But what does it stand for?

• What You See Is What You Get

Storage device that stores digitally encoded data on rapidly rotating disks with magnetic surfaces.

• Hard Disc Drive
  

Tick the output devices

High density double sided floppy disks could store _____ of data

• 1.40 MB
• 1.44 GB
• 1.40 GB
• 1.44 MB

Provides a certain service and manages resources.

• What does a server do?

The ___________________ is the part of the computer system that decides where to send data to be processed.

• Control Unit

An electronic visual display for computers.

• Monitor
  

Programs designed to perform specific tasks is known as

• System software
• Application software
• Utility programs
• Operating system

Text must be stored in a binary code in computers. this code is called:

• Code for text
• ASCII
• Alphabet code
• ACISS

Instructions and memory address are represented by

• Character code
• Binary codes
• Binary word
• Parity bit

RAM is type of --------

• Hardware
• Secondary memory
• Input Device
• Primary memory

Which of the following is not an electronic computer?

• ENIAC
• ABC
• UNIVAC
• EDVAC

The smallest number that can be represented by 4 bits is:

How many kilobytes are in a megabyte? (type one number only)

• 1000

What is the date when Babbage conceived Analytical engine

• 1642
• 1837
• 1880
• 1850

RAM is an example of which type of storage?

• Volatile
• Big
• Non Volatile
• Small

Choose the storage device listed below

• Earphones
• Controller
• SD Card
• Mouse

The translator program used in assembly language is called

• Compiler
• Interpreter
• Assembler
• Translator

The acronym ROM stands for:

• a) Random Only Memory
• b) Read Only Memory
• c) Read Optical Module
• d) Random Organizing Memory

Printer, speaker.

• Output device examples

Name the component of the computer system that performs calculations and logic operations ______________________.

• Arithmetic and Logic Unit

A device that provides power to a computer.

• Power Supply
  

It is physical equipment that implements the data processing so that useful information may come as a result.

• Hardware

High level language is also called

• Problem oriented language
• Business oriented language
• Mathematically oriented language
• All of the above

The internal fan that cools the microprocessor.

• CPU fan
  

The central processing unit (CPU) consists of

• Input, output and processing
• Control unit, primary storage, and secondary storage
• Control unit, arithmetic-logic unit and primary storage
• Control unit, processing, and primary storage

What is an input device?

• An input device is a device that converts the results from the processor into data we can see or hear.
• An input device is a device that allows the user to save data to and to load data from.
• An input device is part of the processor of a computer.
• An input device is a device that allows the user to give the computer data.

Another name for main memory is:

• a) secondary storage
• b) primary storage
• c) magnetic tape
• d) hard disk

The ALU of a computer normally contains a number of high speed storage element called

• Semiconductor memory
• Registers
• Hard disks
• Magnetic disk

An advanced computer pointing device that uses a light-emitting diode (LED)

• Optical Mouse
  

Name the component of the computer system that stores data that are currently being used by the CPU ___________________________________.

• Main Memory

Software

• Computer programs and games are called what?

The binary number 1101 represents the decimal number _______________

• 13

The term gigabyte refers to

• 1024 bytes
• 1024 kilobytes
• 1024 megabytes
• 1024 gigabyte

A device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image

• Scanner
  

It is a social networking service and website started in February 2004. It was built by Mark Zuckerberg.

• Instagram
• Twitter
• Facebook

Printed circuit board on which the CPU, RAM chips and other electronic circuit elements are located.

• Motherboard
  

Abacus was the first

• Electronic computer
• Mechanical computer
• Electronic calculator
• mechanical calculator

Spam

• The official slang term for junk mail is what?

Which of the following device was not invented by Babbage?

• Pascaline
• Difference Engine
• Analytical Engine
• None of above

A _________ is an electronic device that performs tasks based on instructions given by the user.

• device
• computer
• electronic device
• hardware

Properly arranged data is called

• Field
• Words
• Information
• File

5. The first IBM PC was released to the public prior to 1985.

• True

Which unit converts computer data into human readable form?

• Input unit
• Output unit
• ALU
• Control Unit

which is not input device

• Scanner
• Joy stick
• plotter
• Microphone

An electronic device that can store and process data to help users complete tasks. Ex: Refrigerators, phones, game systems, TV, eBooks, i Pods.

• Which definition best describes a computer?

Set of instructions that tells the hardware what to do. It is what guides the hardware and tells it how to accomplish each task. Eg Microsoft Word, PowerPoint

• Software
  

What type of data stored in the ROM?

• Program files to execute
• Permanent data
• Currently working on file
• short time data

An operating system is a----------------

• Application software
• Web browser
• Hardware
• System software

The brain of any computer system is

• ALU
• Memory
• CPU
• Control unit

The activity of defrauding an online account holder of financial information by posing as a legitimate company.

• What does a phishing email try to do?

Full form of ALU is

• Arithmetic Logic Unit
• Arithmetic Legal Unit
• Arithmetic Logic Unix
• Arithmetic Localc Unit

It refers to the people involved in the data processing operations such as the programmers, computer operators, and system analysts.

• Hardware
• Software
• Peopleware
• Procedure

Web browser, e-mail

• Network application examples

Full form of WWW is

• World Wide Web
• World Wide Wax
• World Web Wax
• Word Wide Web

Which device can understand difference between data & programs?

• Input device
• Output device
• Memory
• Microprocessor

Which statement is valid about computer program?

• It is understood by a computer
• It is understood by programmer
• It is understood user
• Both a & b

Bitmap images are stored as a series of tiny dots called

• Pixies
• Pixels
• Pixars
• Pictures

Which of the following storage devices can store maximum amount of data?

• Floppy Disk
• Hard Disk
• Compact Disk
• Magneto Optic Disk

The earliest calculating devices are

• Abacus
• Clock
• Difference Engine
• None of these

When was vacuum tube invented?

• 1900
• 1906
• 1910
• 1880

Which part of the computer is used for calculating and comparing?

• Disk unit
• Control unit
• ALU
• Modem

How is each character stored in the computer-------------

• Binary number

Which of the following is NOT an embedded system?

• Smartphone
• Washing Machine
• Cash Register
• GPS

Keyboard, mouse, CPU, monitor, printer, speakers.

• The main hardware components of a home computer are...

How many bits are in a byte? (type one number only)

• 8

Random Access Memory stores files temporarily being used by the CPU>

• Which statement best defines 'RAM'?

Which of the following is a read only memory storage device?

• Floppy Disk
• CD-ROM
• Hard Disk
• None of these

Convert 100101 to denary

• 37

The difference between memory and storage is that memory is _____ and storage is __

• Temporary, permanent
• Permanent, temporary
• Slow, fast
• All of above

1. Which of the following is the lowest level of computer language?

• machine language

An integrated circuit is

• A complicated circuit
• An integrating device
• Much costlier than a single transistor
• Fabricated on a tiny silicon chip

Machine language is

• Machine dependent
• Difficult to program
• Error prone
• All of above

Which backing storage device does a Raspberry Pi use?

• USB Memory stick
• Cloud storage
• Hard drive
• SD Memory Card

It is an American micro-blogging and social networking service on which users post and interact with messages known as "tweets".

• Twitter
• Facebook
• Instagram
• Tumbler

Which of the following is the device that connects internal components together in a computer system?

• Motherboard
• RAM
• CPU
• Hard Disk Drive

How many bits would it take to represent this black and white image?

• 10
• 20
• 25
• 36

Web cam is an

• Input unit device
• output unit device
• Processing device
• Input and Output device

What is ASCII?

• American Standard code for information interchange

The smallest unit of memory. 8 bits = 1 byte.

• Bit

What component is this...?

• CPU
• Hard Drive
• Motherboard
• RAM stick

A solid state drive is an example of which type of storage?

• Volatile
• Big
• Non Volatile
• Small

What is the responsibility of the logical unit in the CPU of a computer?

• To produce result
• To compare numbers
• To control flow of information
• To do math’s works