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WorksheetsCHAPTER 3: HARDWARE ESQ
Total questions: 90
Worksheet time: 38mins
What does CU stands for:
Control unit
Central unit
Computer unit
ALU refers to :
Additional Login Unit
Arithmetic and Logic Unit
Select all the components of the CPU
ALU
Control Unit
Registers
RAM
Choose all the types of system bus?
Address
Data
Control
Register
Choose all the registers found in a typical processor?
Current Instruction
Accumulator
Memory Data
Memory Address
What is meant by a von Neumann computer architecture?
Where the program instructions are stored in a seperate memory storage from the data
Where the program instructions are stored in the same memory storage as the data
Where the program instructions are stored in ROM and the data is stored in RAM
Where the program instructions are divided across several CPUs
What is the main storage area for program instructions and data in a Von Neumann computer architecture?
RAM
CPU
ROM
Cache
CIR refers to : Current Instruction Register
TRUE
FALSE
ACC refers to : Accumulator
TRUE
FALSE
Which of the following does NOT affect the performance of a CPU?
Clock Speed
Number of Cores
Amount of Cache
Type of Cache
Number of CPU pins
(a) is the action of increasing a component’s clock rate, running it at a higher speed than it was designed to run.
The higher the CPU's clock speed...
The more cache the CPU has
The more cores the CPU has
The more data can be stored
The greater number of instructions can be carried out per second
Is a computer with a quad core CPU guaranteed to be quicker than a dual core CPU?
No, it depends on whether the program can multitask
No, it depends on the size of the RAM
Yes, more cores means it will be quicker no matter what
Can the width of the System Bus affect the performance of the CPU?
Yes
No
What does GPU stand for?
Graphical Processing Unit
Good Parallel Unit
Graphics Printing Unit
Graphical Programming Unit
Graphics Producing Unit
What is multi-processing?
Simultaneous use of several processors to perform a single job
Simultaneous use of several processors to perform multiple jobs
Multiple instructions executing simultaneously in a CPU
How many of the following are examples of Embedded Systems?
Mobile Phone
Washing Machine
Microwave
Fridge
Laptop
True or False, all embedded systems need an operating system to enable them to function correctly?
True
False
What sensor would an automatic door use?
Heat
Light
Pressure
Movement
Digital cameras have largely replaced traditional
film-based cameras.
film biased camera
first based camera
Uses a powerful lamp as the light source
DLP
LCD
The lamp light is separated into Red, Green and Blue
DLP
LCD
Millions of tiny mirrors create the image
DLP
LCD
liquid crystal displays create the image
DLP
LCD
Chromatic mirrors reflects the light back at different wavelengths
DLP
LCD
A colour wheel filters the light into RGB squences
DLP
LCD
A lens is used to project the image larger
DLP
LCD
Light is used more efficiently
DLP
LCD
This is an older technology
LCD
DLP
the arrangement of the _______________ on the DLP chip determines the resolution of the digital image
xenon bulb
micro mirrors
prism
pixels
This is an older technology
LCD
DLP
Chromatic mirrors reflects the light back at different wavelengths
DLP
LCD
Uses a powerful lamp as the light source
DLP
LCD
The lamp light is separated into Red, Green and Blue
DLP
LCD
Millions of tiny mirrors create the image
DLP
LCD
liquid crystal displays create the image
DLP
LCD
A colour wheel filters the light into RGB squences
DLP
LCD
A lens is used to project the image larger
DLP
LCD
A special prism assembles the RGB light back into one image
DLP
LCD
Light is used more efficiently
DLP
LCD
the arrangement of the _______________ on the DLP chip determines the resolution of the digital image
xenon bulb
micro mirrors
prism
pixels
When the mirco mirrors in DLP tilt away from the light source they are....
OFF
ON
The micro mirrors can switch on and off several thousand times a second creating various ..........
red, green, blue shades
colours
grey shades
mixed primary colours
A bright white light source (from the xenon bulb) passes through a colour filter on its way to the .......... chip
DLP
LED
The ON and OFF states of each micro mirror in DLP are linked with colours from _____________ to produce the coloured image
prism
filter
xenon bulb
LED projector body
The whole concept of this projector is a little like reverse black and whole photography
DLP
LCD
When the white light hit these mirrors, the reflected light has wavelengths corresponding to red, green and blue light components
DLP
LCD
The three different coloured light components pass through three __________ screens, which show the image to be projected as millions of pixels in a grey scale
DLP
LCD
When the coloured light passes through the LCD screens,_____________________ version of the grey image emerges
red, green and blue
1024 grey shades
The images are combined using a special ______________ to produce a full colour image- this image consists of millions of colours
lens
prism
xenon bulb
micro mirrors
Cheap to buy, but more expensive per page
Inkjet Printer
Laser Printer
Best for text
Inkjet Printer
Laser Printer
3D Printer
Great at high volume printing
Inkjet Printer
Laser Printer
3D Printer
Used to create prototype and models
Inkjet Printer
Laser Printer
3D Printer
Works layer by layer
Inkjet Printer
Laser Printer
3D Printer
Plastic often used as the printing material
Inkjet Printer
Laser Printer
3D Printer
Choose the output devices.
monitor, printer, mouse
monitor, printer, keyboard
monitor, printer, speakers
mouse, keyboard, smartboard
A printer usually found in homes that uses cartridges and can produced high quality photos...
inkjet
laser
dotmatrix
thermal
Useful for producing architectural drawings
dot-matrix
plotter
thermal
The noisiest one
dot-matrix
3D
thermal
Which of the following printer produces the lowest print quality?
inkjet
plotter
thermal
ATM receipts and debit or credit card slips are printed using this type of printer.
Dotmatrix
Inkjet
Laser
Thermal
Why are some impact printers such as dot-matrix printer still in existence?
They are noisy.
They are useful for printing multiple copies using carbon paper.
They do not usually print acceptable graphics.
They are cheap.
Which of the following is the largest in terms of size?
Inkjet
Laser
Plotter
Thermal
The most common types of outputs are soft copy and hard copy. Which of the following device DOES NOT produce soft copy?
Monitor
Printer
Projector
Speakers
Which monitor is organic
LCD
LED
OLED
CCFL
What combination of colours is used to make all digital colours?
Red Green Yellow
Green Blue Red
Yellow Blue Red
Blue Yellow Green
What system uses backlighting?
LCD
LED
OLED
CCFL
Why are some screens curved?
OLEDs work better in this structure
To be less fragile
To look cool
To have a nice image from any angle
Which monitor has a clearer image generally?
OLED
LED
LCD
CCFL
Which Monitor has a yellow hue
LCD
CCFL
OLED
LED
Which monitor can be the thinnest?
LCD
LED
OLED
CCFL
Which monitor has a sharper colour
LCD
LED
Which screen is usually used for handheld devices?
LCD
LED
OLED
CCFT
Is Jojo an amazing anime?
Yes! Yes!
Iesu! Iesu! Iesu!
Yes!
Yes! Yes! Yes! Oh my God!
Where might a proximity sensor be used?
A Car
A House
A Shop
A Green House
Where might a light sensor be used?
Car Lights
A Green House
Street Lights
Where might a Humidity sensor be used?
A Shop
A Green House
A Car
A Mobile Phone
