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WorksheetsChapter 1 computer science J277
Total questions: 30
Worksheet time: 15mins
The CPU fetches instructions from.... and executes those instructions.
Memory
ALU
ROM
Input Device
What does volatile mean for a computers memory
Data and instructions remain stored even when the computer is switched off
Data and instructions may cause the computer to crash
Data and instructions are lost when the computer is switched off
What is an algorithm?
A set of step-by-step instructions
Software that analyses data
A hardware device that stores data
The main circuit board in the system unit is also called the
Busboard
Chipboard
RAM
Motherboard
Clock Speed is usually measured in...
Mhz
Ghz
Hz
Rhz
Allows the user to put data into the computer
Allows the user to see/hear data coming out of the computer
What is software?
The physical parts of a computer
The operating information used by a computer
The memory bank of a computer
The electrical current inside of a computer
RAM, ROM and Cache are known as what kind of memory?
Secondary storage
Main memory
Registers
Flash memory
What is stored in Read Only Memory (ROM)?
Recently opened programs
Operating system and currently running programs
BIOS and boot sequence (the computer's initial start-up process)
The CPU's registers
What is usually held in the contents of RAM?
BIOS and Boot sequence needed to start the computer
Data and currently running programs (instructions)
Software programs stored within the computer
Recently executed instructions in case they are needed again
Which statement best describes ROM?
A flash memory chip that contains a small amount of non-volatile memory
A memory store containing a large amount of volatile memory
A register within the CPU responsible for storing memory addresses
A memory store containing a small amount of volatile memory
Which statement best describes RAM?
Fast, permanent storage
Slow, volatile stoage
Fast, volatile storage
Slow, permanent storage
Can the contents in ROM be changed?
Not normally but can be changed through a process called 'flashing'
Yes
The content are always changing as they are used by the CPU
What type of storage is a DVD ROM?
Optical
Magnetic
Solid State
It is not a storage device
What type of storage is a USB memory stick?
Optical
Magnetic
Solid State
It is not a storage device
What type of storage is an SSD card?
Optical
Magnetic
Solid State
It is not a storage device
What type of storage is a HDD?
Optical
Magnetic
Solid State
It is not a storage device
Which of the following storage media would usually have the fastest read/write speeds?
Optical
Magnetic
Solid State
Hand
Which of the following storage is the most durable?
Optical
Magnetic
Solid State
They are all the same
Which type of storage uses lasers to write the data?
Optical
Magnetic
Solid State
All types
The typical read/write speed of storage are listed below from fastest to slowest. Which is correct?
Solid State
Optical
Magnetic
Optical
Magnetic
Solid State
Magnetic
Optical
Solid State
Solid State
Magnetic
Optical
Why does a laptop need secondary storage?
To reduce the amount of virtual memory it needs
To store data, files and software for future use
To make the laptop run faster
To store data that the processor needs
