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WorksheetsComputer revision
Total questions: 105
Worksheet time: 53mins
The physical parts of computer that we can touch and see are called
Software
Hardware
CPU
Computer
It is circuit board where everything inside a computer connected.
motherboard
CPU
printer
keyboard
The ________ device accepts the results by the comptuer, converts them
into human readable form and supplies them to the users.
Input
Output
Both
An INPUT device can
send data to another device, but it can not receive data
receive data from another device , but can not send data
can send and receive data
A type of mouse that has been designed to reduce muscle train.
Mechanical
Optical
Ergonomic
Trackball
An input device that is also known as card swipe machine.
Light Pen Scanner
Magnetic-Stripe Reader
Magnetic Ink Character Recognition
Optical Mark Reader
It is volatile memory that stores data temporarily.
RAM
Secondary Storage
Primary Storage
ROM
It is the nucleus of any computer system.
Device Drivers
Fundamental System Utilities
Application Software
Operating System
A software used to accomplish specific tasks.
Operating System
Application Software
System Software
System Utilities
An Application Software that allows users to create and manipulate documents that contain text and graphics.
Word Processing
Spreadsheet Software
Presentation Software
Database Software
What is a computer?
Which among the following is/are input device(s)?
OCR
VDU
Plotter
Trackball
Which of the following is a CPU register
Program counter
Memory Address Register
Instruction Register
All of these
Which of the following is true with respect to speed?
Cache memory>Register>Primary memory
Register>Primary memory>Cache memory
Cache memory>Primary memory>Register
Register>Cache memory>Primary memory
Which is a very high speed memory placed in between RAM and CPU.
Register
ROM
Cache memory
SRAM
Which of the following translates high level language into machine language?
Compiler
Assembler
Interpreter
Operating system
Which of the following is used in banks to process large volumes of cheques?
OMR
OCR
MICR
Barcode scanner
Which of the following stores data and instructions permanently?
Hard disk
Floppy disk
Magnetic disk
All of the above
An input device that converts a document to a digital image is called a
Sensor
Plotter
Scanner
Digital reader
The hardware that records and/or retrieves items to and from storage media
Usb Flash drive
Pen Drive
Storage Capacity
Storage Device
A _____________ is a software programmed resident to electrically programmable memory device on mainboards or other types of integrated hardware carriers.
middleware
firmware
software
hardware
It is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.
Utility Software
Device Driver
Programming Software
Operating System
Example of utility software is
Compiler
Windows
Antivirus
Android
__________ software detects, and removes the virus.
cleanup
backup
antivirus
The 2 types of Software are:
Operating System
System
Business
Application
Controls and coordinates distributed system
firmware
software
hardware
middleware
Which of the following is a benefit of networking computers in a large organization or school setting?
Allows us to share resources
Helps us become more efficient and save money
Allows us to share information
All of these answers
We are mobile devices.
Laptop
Desktop PC
Smart phone
Xbox 360
what am I?
Desktop PC
Mainframe/server
Laptop
Smart Phone
Which computer is the most powerful?
Supercomputers
Minicomputers
Worstation
Mainframe
Personal Computer
Which type of computer is built to support an organization's information?
Mini
Mainframe
Embedded
Super
Microwaves, washing machine, medical equipment, cameras, toys and airplanes are some of the appliances/ machines which uses the list above.
Personal Digital Assistants
Embedded Computers
Micro Computers
Wearable Computers
What's the main difference between a supercomputer and a mainframe?
There is no real difference between both computer systems.
Mainframes are good for large and complex calculations, whereas supercomputers are good in doing a large quantity of small tasks at the same time.
Supercomputers are good for large and complex calculations, whereas mainframes are good in doing a large quantity of small tasks at the same time.
Mainframes are designed to look aesthetically pleasing, whereas this is not the case with supercomputers.
Uses thermal bubble technology
3D Printer
Inkjet Printer
Laser Printer
The difference between impact printers and non impact printers. Which of the following is true?
Impact printers are faster than non-impact
Impact printers make directly physical contact with paper and non-impact don't
Impact printers provide good quality print outs
Impact and non-impact printers are the same
Information Technology involves:
Collecting data
Keeping data safe
Sharing data
Troubleshooting computer problems
These types of devices can be found in cameras, printers, washing machines and some vehicles.
Mobile devices
Digital panels
Mainframes
Embedded devices
What do we mean by COMPUTATIONAL THINKING?
Understanding a complex problem and developing possible solutions.
Breaking a task into smaller tasks.
Selecting a computer to use.
Focusing on what is important, ignoring what is unnecessary.
Define ABSTRACTION
Breaking a task into smaller tasks.
Drawing a map to show how to reach a destination.
Creating step by step instructions.
Focusing on what is important and ignoring what is unnecessary.
Define PATTERN RECOGNITION.
A sequence of instructions.
Looking for similarities and trends.
Breaking a task into smaller tasks.
Focusing on what is important and ignoring what is unnecessary.
Define ALGORITHM DESIGN
Breaking a task into smaller tasks.
Looking for similarities and trends.
A sequence of instructions.
Deciding what computer to use.
What is this FLOWCHART symbol called?
Terminator
Decision
Process
Input/Output
What is this FLOWCHART symbol called?
Terminator
Decision
Process
Input/Output
What is this FLOWCHART symbol called?
Terminator
Decision
Process
Input/Output
What is this FLOWCHART symbol called?
Terminator
Decision
Process
Input/Output
What does an arrow represent in a FLOWCHART?
Start
Decision
Data flow
Process
What is the OUTPUT if the user enters "YES"?
Leave umbrella at home.
Take an umbrella.
What is decomposition?
Adding detail to make a problem more complex
Breaking down a complex problem or system into smaller, more manageable parts
When you ignore the unnecessary detail in a problem
Why do we decompose a complex problem?
To make it easier to solve
To make it more difficult to solve
To change the problem we have
Which of these is an example of decomposition?
Watching a mechanic repair a car
Finding out how a car works by looking in detail at the different parts that make up the car
Looking at different car models for similarities between them
Which of these is NOT an example of decomposition?
Thinking about how the problem could be divided into smaller parts
Adding more parts to the problem so it becomes more complex
Working out who could help you solve a part of the problem
Why do we need to look for patterns in problems?
Patterns make it easier for us to solve complex problems
We don't need to look for patterns
Patterns make it more difficult complex problems
What comes next in the pattern?
up, down, right
down, up, left
up, right, down
down, left, right
heart,heart,heart
octagon, octagon, octagon
octagon, heart, octagon
octagon, octagon, heart
What is Abstraction?
The use of computers to solve problems
Breaking down a large problem into smaller sub-problems
Representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements from the problem
Identifying the steps involved in solving a problem
When drawing a dog, which of the following characteristics could be ignored?
Dogs run quickly
Dogs have a nose
Dogs have paws
A boolean is...
A whole number
A number with a decimal part
Letters, numbers or punctuation
True or False
An integer is...
A whole number
A number with a decimal part
Letters, numbers or punctuation
True or False
A real is...
A whole number
A number with a decimal part
Letters, numbers or punctuation
True or False
A string is...
A whole number
A number with a decimal part
Letters, numbers or punctuation
True or False
Pick the correct line which creates a variable called 'name' which is a string.
name is string
string = name
name = string
string is name
The best data type for an age is...
integer
real
string
boolean
The best data type for a name is...
integer
real
string
boolean
The best data type for an average is...
integer
real
string
boolean
distanceToSchool = 10
Which part is the identifier?
distanceToSchool = 10
What is the value of the variable?
What is a negative impact of technology?
Eye Strain
Increase productivity
Increase of jobs
Communication skills
Good technique can prevent: (Choose all correct)
Wrist Strain
Neck Strain
Back Strain
Ankle strain
If you sit behind a computer for long periods, using the wrong kind of chair, which problem can occur?
back pains
burning eyes
drowsiness
headaches from bad lights
What do the letters RSI stand for?
Repeat and Save Instead
Repetitive Stress Insecurity
Repetitive Strain Injury
Restore Service Instantly
What does CVS stand for?
Carpal Visual Stress
Computer Vacancy Stress
Computer Vision Syndrome
Carpal Volume Stress
If you sit behind a computer for long hours and your eyes begin to feel sore, you may be experiencing:
RSI
CVS
CTS
ICT
Which of the following is a computer related injury?
angle strain
wrist strain
fractured leg
sprained toe
The person in the picture is likely suffering from:
CVS
DVT
ICT
CTS
