Memory and Storage

Which of these components are included in a Hard Disk Drive?

• Motor

• Platter

• Read-write head

• ALU

• Laser

Which of these components are included in a Optical Disk Drive?

• Motor

• Platter

• Read-write head

• ALU

• Laser

Which of these components are included in a Solid State Drive?

• Motor

• Platter

• Read-write head

• ALU

• Transistor

Binary data on Hard Disk Drives is represented using...

• Magnetic charges

• Physical pits and lands

• Electrical current

• Lasers

Binary data on Optical discs is represented using...

• Magnetic charges

• Physical pits and lands

• Electrical current

• Lasers

Binary data in solid state storage is represented using...

• Magnetic charges

• Physical pits and lands

• Trapped electrical charges

• Lasers

The differences between ROM and RAM are...

• ROM is non-volatile, RAM is volatile

• ROM is read-only, RAM is read and writable

• ROM is volatile, RAM is non-volatile

• ROM is read and writable, RAM is read-only

Secondary storage is required because...

• It is non-volatile, so data is not lost when power is turned off

• Primary storage is read-only

• There is not enough space in primary storage to store files

• Data in CPU registers is directly accessible using machine code

Cloud storage involves data being stored...

• On your local computer

• On a remote server

• Using ROM chips

• In little boxes in somebody's garage

Which of these isNOT true of optical disc drives

• The laser moves acress the radius of the disc

• The disc spins

• The laser is reflected of the lands on a disc

• The data is stored in a spiral patters on the disc

• The disc stored binary data using electrical current