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WorksheetsICT Computer system 3.1-3.3
Total questions: 55
Worksheet time: 33mins
Which of the following is a form of computer?
Desktop
Tablet
Smartphones
Smartwatch
Servers
Which of the following is true?
Computer do not need any hardware components to work
Computer only need hardware to work
Software is the physical components of a computer which control the hardware
Computer is a electronic device that manipulates data
Which of the following belongs to IPO Cycle?
Input
Process
Output
Operating
Prepare
The use of ‘INPUT’ in IPO Cycle (computer process)?
Sending information and data into computer by input devices
The CPU process the data according to the instructions given by the input stage
Have the computers shows the processed result on the output devices
The use of ‘PROCESS’ in IPO Cycle (computer process)?
Sending information and data into computer by input devices
The CPU process the data according to the instructions given by the input stage
Have the computers shows the processed result on the output devices
The use of ‘OUTPUT’ in IPO Cycle (computer process)?
Sending information and data into computer by input devices
The CPU process the data according to the instructions given by the input stage
Have the computers shows the processed result on the output devices
Examples of hardware
Keyboard
CPU
Motherboard
Operating system
Examples of software
Minecraft
Mouse
Device drivers
Google chrome
Examples of input devices
Keyboard
Touch screen
Projector
Microphone
Examples of output devices
Image scanner
Printer
Monitor
Speaker
Barcode scanner
Among thermal printer, inkjet printer and laser printer, which of them has the highest printing cost?
Thermal printer
Inkjet printer
Laser printer
Among thermal printer, inkjet printer and laser printer, which of them has the slowest printing speed?
Thermal printer
Inkjet printer
Laser printer
Is CPU a input, processing or output device?
Input device
Processing device
Output device
Which of the following is the 2 main components of CPU
Control Unit
Arithmetic and Logic unit
Operating system
System software
The function of ALU
Performs arithmetic and logical operations
Process instructions and executes them
Allow the hardware to communicate with the input devices
Store data and information
The function of CU
Performs arithmetic and logical operations
Process instructions and executes them
Allow the hardware to communicate with the input devices
Store data and information
What is CPU register?
A type of memory accessed by CPU quickly
A tool to help output devices to output the results
Register data and information and putting them into a server
Checking how fast your computer is
Which of the following is a cooling system of CPU
Cooling fan
Heat sink
Liquid cooling
Heat conditioner
Computer storage has 2 types, which of the following are the 2 types?
Primary Storage
Secondary Storage
Tertiary storage
CPU
RAM
How many bits are 1 kilobyte
1024
8192
2048
1048576
Which of the following has the highest speed per bit
SRAM
Secondary storage
CPU register
DRAM
Which of the following has the highest capacity?
SRAM
Secondary storage
ROM
DRAM
What are the 2 major types of primary storage?
RAM
ROM
CPU
SSD
Which of the following true about RAM?
RAM has 2 types — ORAM, DRAM
RAM is the volatile memory
It has 2 types — SRAM, DRAM
The data stored cannot be edited
What is volatile?
A type of memory that maintains its data only while the device is powered.
It can allow the user to interact with the memory
It can store data within servers
DRAM and SRAM, which of them has the higher speed
DRAM
SRAM
DRAM and SRAM, which of them has the higher cost?
DRAM
SRAM
DRAM and SRAM, which of them has the higher capacity?
DRAM
SRAM
What is the unit of clock rate?
MHz
GBz
GHz
MBz
What is clock rate?
It can measure the performance of the CPU
It can allow the CPU to process the instructions given by the input devices
It is used to help ROM store BIOS
It is used to measure the time
Higher clock rate can have the CPU process more instructions, what else can measure and boost the CPU performance?
Cores
Hard disk
Storage
Dynamic Random Access Memory
Which of the following are TRUE about ROM
It cannot be edited
It is used for long-term storage
It may store system instructions used to start up the device and BIOS
It is volatile
All of the above
Which of the following are types of ROM?
PROM
EPROM
EEPROM
EEEPROM
None
DRAM and SRAM are used by _____ and _____ respectively
OS and Software ; Secondary storage
CPU and software ; OS
CPU ; Software
OS and software ; CPU
Which of the following are true about secondary storages?
It is non-volatile memory
Both USB flash drive and optical disk are examples of secondary storage devices
Both RAM and ROM are secondary storages
Hard disk is a secondary storage device
CPU register is a secondary storage device
Which of the following is true about SSD(Solid-state drive)
It is a primary storage
It is a secondary storage
It stores data in flash memory chips
It stores data in a magnetic-coated disk
It isn’t more reliable and faster than hard disk
What is Z in the hard disk?
Platter
Magnetic coat
CPU
Optical disk
What is Y in the hard disk?
Flash drive
Motherboard
Metallic head
Which of the following secondary storage devices portable devices uses to store data?
USB flash drive
Memory card
SSD
Magnetic Tapes
Among CD, DVD and BD, which of the following has ~25 GB
CD
DVD
BD
Among CD, DVD and BD, which of the following has ~4.7 GB
CD
DVD
BD
Among CD, DVD and BD, which of the following has ~750MB
CD
DVD
BD
What is cloud?
A kind of web-based storage
A type of storage that reads or write through hard disk
A type of primary storage
CPU is a type of cloud
How many bits are 1 byte?
8b
1024B
8B
16B
Which of the following is true about bits?
It is either -1, 1
It is either 1, 2
It is either 0, 1
It is either 8, 16
What storage capacity HHD usually have.
128GB to 30TB
Up to 2TB
128GB to 100TB
Up to 580TB
What storage capacity SSD usually have.
128GB to 30TB
Up to 2TB
128GB to 100TB
Up to 580TB
What storage capacity USB flash drive usually have.
128GB to 30TB
Up to 2TB
128GB to 100TB
Up to 580TB
What storage capacity memory card usually have.
128GB to 30TB
Up to 2TB
128GB to 100TB
Up to 580TB
What storage capacity magnetic tapes usually have.
128GB to 30TB
Up to 2TB
128GB to 100TB
Up to 580TB
Which of the following file formats are document file format
.mp3
.m4a
.docx
All of the above (No need to click all of them)
Which of the following file formats are document file format
.docx
.jpeg
All of the above (No need to click all of them)
Which of the following file formats are audio file format
.mov
.mp4
None of the above
.m4a
Which of the following computers uses to represent english characters and common symbols
8 bits
8 bytes
16 bits
1 bit
Examples of 1 byte
1 letter or symbol
1/3 of a page of text
1 book
16 hours of music
