Grade 5 - Computer Memory

A group of 8 bits is called a

• bit

• byte

• Gigabyte

• Megabyte

1 Kilobyte is

• 1028 bytes

• 1000 bytes

• 1024 bytes

• 1025 bytes

Primary memory devices are

• CD & DVD

• HARD DISK & PEN DRIVE

• RAM & ROM

• NONE OF THE ABOVE

Full form of RAM

• Read Only Memory

• Random Access Memory

• Record Only Memory

• Rewrite Only Memory

Example for secondary memory

• Pen drive

• CD

• DVD

• All of the above

The ‘Father’ of the hard disk drive

• Rey Johnson

• Kim Johnson

• Charles babbage

• Johnson

Full form of CD - RW

• Compact Disc - Readable

• Compact Disc - Recordable

• Compact Disc Rewriteable

flash drive used especially in digital cameras and mobile phones

• Pen drive

• CD

• Memory card

• DVD

It is a small in size, lightweight, removable and re-writeable and It is used for copying and moving data from one computer to another

• Memory card

• Pen drive

• All of the above

• None of the above

Approximate storage capacity of Blu-ray disc

• 25 MB - 1 TB

• 25 GB - 50 GB

• 650 -700 MB

• 4.7 GB - 17 GB