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WorksheetsComputer : Chapter 3 - Computer System & Processing
Total questions: 65
Worksheet time: 2hrs 10mins
IPO Cycle means:
Input -> Program -> Output
Input -> Process -> Output
Input -> Print -> Output
Input -> Package -> Output
The parts which help computer to understand the instructions from a user are known as (a) devices.
(a) is the most common input devices.
Keyboard has many (a) through which we feed input into the computer.
(a) is a very powerful in graphics input.
Mouse is used to draw (a)
Mouse is used to select different (a)
Joystick is a (a) device
Joystick has a (a) attached to the tracking ball
(a) is used to store images in the computer
A Lightpen can be used to select an option by simply pointing at it
True
False
A Lightpen can be used to draw figures directly on the screen
True
False
A Lightpen can be used to move the figures around
True
False
A Lightpen is useful for drawing graphics in CAD
True
False
A Lightpen is used by
Engineers
Fashion designers
Architects
Mechanics
(a) scans images and transforms them to the code used by a computer
Bar Code Reader is an input device
True
False
Bar Code Reader identifies the item when the lightpen moves across the bars
True
False
Bar Code Reader is mainly used for updating the inventory level
True
False
(a) is used to record the voices of people on the computer
We can speak to our friends over the internet using a (a)
(a) displays result (output) on the screen
Monitor comes only in one size
True
False
Monitor are :
Monochrome (black & white)
Colour
(a) prints the output of the computer on the paper
A printer is an output devices that comes in many shapes and sizes
True
False
A printer can only print in colour
True
False
Printers are :
Dotmatrix
Laser
Inkjet
(a) gives output in the form of sound.
Printer and Plotter are same
True
False
CPU is the brain of the computer
True
False
CPU is called Central Processing Unit
True
False
CPU consist of
Control Unit
Arithmetic Logic Unit
Memory Unit
Control Unit co-ordinates and controls the action between the input device, ALU, MU and output device
True
False
All the arithmetical and logical operations of the CPU are performed by ALU
True
False
Memory Unit is the storage area of the computer
True
False
Memory is of below types
Primary Memory
Secondary Memory
Primary memory is also called :
Primary Storage
Main Memory
Immediate Access Memory
The memory of a computer stores all the instructions and data
True
False
Primary memory comprises of :
Read Only Memory
Random Access Memory
ROM is the temporary memory of the computer
True
False
ROM can be overwritten
True
False
ROM contains information for starting the computer
True
False
Every time the computer is started, the instructions in ROM are read and carried out.
True
False
The contents of ROM do not get erased even when the computer is switched off.
True
False
RAM is known as Random Access Memory
True
False
RAM is temporary memory
True
False
RAM is temporary memory
True
False
RAM stores information and gives it back to the user when needed.
True
False
RAM has no limit to store information
True
False
The more the RAM, the faster a computer can work
True
False
Whenever a task is performed on the PC, the data is transferred from the disk to RAM, where it is manipulated.
True
False
Secondary memory devices are used to store data or information permanently
True
False
Secondary memory devices are used to transfer data from one computer to another
True
False
The information stored in secondary memory devices is lost when the computer is turned off
True
False
Secondary Memory devices are:
Hard Disk
CD ROM
DVD
Floppy
Pen Drive
Storage Capacity refers to the amount of data that can be stored in a Storage Device
True
False
A symbol commonly used to denote the storage capacity of a computer system is the letter K (kilo)
True
False
K (kilo) is equal to 1024 bytes
True
False
(a) is the other name for the monitor
Printers are (a) type of devices
(a) is used for playing games
(a) is used by engineers, fashion designers etc.
(a) identifies the item when the lightpen moves across the bars
(a) is used to store an image in the computer
