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WorksheetsComputer Science OCR - Chapter 1
Total questions: 71
Worksheet time: 36mins
Which one of these components is not in the CPU ?
Arithmetic Logic Unit (ALU)
RAM
Cache memory
Memory Address Register
The drawbacks of Flash / Solid State Storage are...
Can only be written and erased a finite number of times
Lower capacity than magnetic
Data can be lost when placed near magnetic fields
Surface can be easily scratched
Data cannot be re-written
The drawbacks of Optical Storage are...
Can only be written and erased a finite number of times
Low capacity
Data can be lost when placed near magnetic fields
Surface can be easily scratched
Data cannot be re-written
The drawbacks of Magnetic Storage are...
Easily damaged through being dropped due to moving parts
Low capacity
Data can be lost when placed near magnetic fields
Surface can be easily scratched
Data cannot be re-written
The benefits of Flash / Solid State Storage are...
Fastest read & write speeds
Low cost per GB
High Durability
High Capacity
Can be produced in a number of shapes and sizes
The benefits of Optical Storage are...
Fastest read & write speeds
Low cost per GB
High Durability
High Portability
Not affected by magnets
The benefits of Magnetic Storage are...
High Capacity
Low cost per GB
High Durability
High Portability
Not affected by magnets
Secondary Storage is...
Volatile
Non-Volatile
Which storage medium is most appropriate for an action camera?
HDD
CD
DVD
Flash / Solid State
Which storage medium is popular for distributing video?
CD
HDD
DVD
USB Flash Drive
Which is an example of Flash / Solid State memory?
RAM
ROM
SD Card
Cache
Which storage device is not flash memory?
RAM
Micro SD
SD Card
HDD
Which type of storage uses lasers to read the data?
Magnetic
All types
Solid state
Optical
Why is a Hard Disk Drive (HDD) not usually recommended for portable devices?
It has moving parts
It will break if you touch it
It is too small
It is too large
Which of the following types of storage is the most expensive per GB?
Solid State
Magnetic
Optical
Which of the following types of storage is the most durable?
Optical
Magnetic
Solid State / Flash
Which of the following types of storage would it be possible to access data the quickest on?
Solid State / Flash
Magnetic
Optical
What type of storage is a HDD?
Solid State
Optical
Magnetic
What type of storage is an SSD?
Magnetic
Optical
Solid State / Flash
Which of the following is not a type of storage?
Magnetic
Solid State / Flash
Optical
Hard Drive
What type of storage is a DVD?
Magnetic
Solid State / Flash
Optical
What type of storage is a USB memory stick?
Solid State / Flash
Optical
Magnetic
Fetch D______ Execute is the cycle used to process and execute instructions.
Design
Develop
Decode
Dictate
What is the purpose of the data bus?
Carries signals to control various devices and components
Carries data around the computer system
Carries the addresses of where data needs to go or come from
What is the purpose of the address bus?
Carries signals to control various devices and components
Carries data around the computer system
Carries the addresses of where data needs to go or come from
What is the purpose of the control bus?
Carries signals to control various devices and components
Carries data around the computer system
Carries the addresses of where data needs to go or come from
A bus...
Is how data is transported around a computer system
Is how data is input into a computer system
Is how data is output from a computer system
Is how data is processed inside a computer system
Which of the following are types of bus in a computer system
Memory Bus
Data Bus
Input Bus
Control Bus
Address Bus
True or False, Embedded Systems use Microprocessors to control specific functions relating to the device they are installed on?
True
False
BIOS contains...
A set of instructions for starting up the computer
The operating system the computer runs on
Applications and general files
All the data stored on the computer
Select the statements which best describe ROM...
It is volatile
It is non-volatile
Usually smaller in capacity
Usually higher in capacity
Can be removable in some devices
Select the statements which best describe RAM...
It is volatile
It is non-volatile
Usually smaller in capacity
Usually higher in capacity
Can be removable in some devices
ROM can be...
Read
Written
Erased
RAM can be...
Read
Written
Erased
If BIOS was stored in the RAM what would happen?
It would run faster because RAM is quicker to read and write
It would get erased every time the computer shut off
The BIOS could be larger because RAM has larger capacities
It would remain after the computer has been shut off
What does BIOS stand for?
Binary Input Operating System
Basic Input Output System
Basic Input Operating System
Basic Inverted Operating System
What is RAM in Desktop Computers, Notebooks, and Smartphones is usually measured in?
Gigabytes
Megabytes
Kilobytes
Bytes
Which of the following are volatile?
RAM
Secondary Storage
ROM
Hard Disk
Which storage or memory solution below is used to store the BIOS?
ROM
Secondary Storage
Hard Disk
RAM
Which statement is true?
ROM contains the operating system
RAM is part of the hard disk
RAM stores programs / data used by the CPU
ROM is volatile
Non-volatile memory...
Retains any stored data when there's no power
Loses any stored data when there's no power
Volatile memory...
Retains any stored data when there's no power
Loses any stored data when there's no power
Which component could improve the performance of a computer?
ALU
External USB Storage
Printer
RAM
Which of the following is an embedded system?
Laptop
Dishwasher
Desktop Computer
Tablet Computer
What is an embedded system?
A register used in a system
A computer system that is built into another device
Cache memory to store data for the system
A machine that can do multiple purposes
