The central processing unit (CPU) contains
the processor, main memory and the cache.
the processor, secondary memory and the cache.
the processor, main storage and the cache memory.
Main memory of RAM is used to...
store programs while they are running and the data used by these programs.
temporarily store programs while they are running and the files used by these programs.
temporarily store programs while they are running and the data used by these programs.
Cache is high speed memory in the CPU that is used to store a copy of frequently used instructions and data. It is used to...
improve the performance of the CPU.
improve the performance of RAM.
improve the performance of ROM.
Clock speed is measured in hertz or cycles per second. It represents...
how many instructions per minute the processor can execute.
how many instructions per second the processor can execute.
how many bits of data per second the processor can execute.
The fetch-execute cycle: the process by which a program is...
run: instructions are stored in main memory, fetched by the processor one at a time, decoded and executed.
run: instructions are stored in main memory, fetched by the processor, decoded and executed.
run: instructions are stored in main memory, fetched by the processor one at a time and executed.
Random Access Memory (RAM) is...
a type of memory that is read-write and volatile. Used for main memory.
a type of memory that is read-only and non-volatile. Used for main memory.
a type of memory that is write only and volatile. Used for main memory.
Read Only Memory (ROM) is...
volatile memory that is hard-coded at the time of manufacture. Stores the start up programs, the boot strap-loader.
non-volatile memory that is hard-coded at the time of manufacture. Stores the start up programs, the boot strap-loader.
memory that is hard-coded at the time of manufacture. Stores all programs, the boot strap-loader.
The bootstrap loader is the...
first program that is loaded into main memory from ROM when a computer is switched on. This will load the operating system from main memory.
first program that is loaded into main memory from RAM when a computer is switched on. This will load the operating system from secondary storage.
first program that is loaded into main memory from ROM when a computer is switched on. This will load the operating system from secondary storage.
Volatile memory describes memory that...
loses its contents when the power is turned off, e.g. RAM.
loses its contents when the power is turned off, e.g. ROM.
retains its contents when the power is turned off, e.g. ROM.
Non-volatile memory describes memory that...
doesn't lose its contents when the power is turned off, e.g. hard disk.
does lose its contents when the power is turned off, e.g. hard disk.
doesn't lose its contents when the power is turned off, e.g. RAM.
Virtual memory is...
part of the hard-disk that is configured to behave like an extension to main memory (ROM).
part of the hard-disk that is configured to behave like an extension to main memory (RAM).
part of the hard-disk that is configured to replace main memory (RAM).
Magnetic media is secondary storage such as...
hard disks, tape and floppy disks.
hard disks, CDs and floppy disks.
hard disks, DVDs and floppy disks.
Optical media is secondary storage that is read using lasers like...
CDs & DVDs.
CDs, DVDs and mini-discs.
Solid state / flash memory are secondary storage devices that have no moving parts. It is used in...
CDs, DVDs & memory sticks.
memory sticks, cameras and phones.
memory sticks, cameras and DVDs.
