Year 9 - Binary Computing Test

What does CPU stand for?

What does CPU stand for?

Central Processing Unit

What cycle does CPU use?

The fetch-decode-execute cycle

How many instructions are carried out in 1 Hertz per second?

1 instruction carried out per second

How many instructions are carried out in 1 Kilohertz (kHz) per second?

1,000 cycles per second

How many instructions are carried out in 1 Megahertz (mHz) per second?

1 million cycles per second

How many instructions are carried out in 1 Gigahertz (gHz) per second?

1 billion cycles

How many instructions are carried out in 3 Gigahertz (gHz) per second?

3 billion cycles

What does RAM stand for?

Random Access Memory

What does RAM do?

It stores data, application and operating system whilst in use.

What does ROM stand for?

Read Only Memory

What does ROM do?

ROM stores instructions for the startup of a computer.

What is hard disk?

Stores information permanently.

What is memory?

It temporarily stores data, files, etc.

What does 1 stand for?

On

What does 0 stand for?

Off

What does ASCII stand for?

American Standard Code for Information Interchange

What does ASCII do?

The universally recognized raw text format that any computer can understand.

Number for unicode

2^16

Decimal number for "A"

65

Decimal number for "a"

97

How many bits does the name Annisha require?

56 bits since it is 7 letters long and you have to multiply by 8 since the system uses 8 bits.

How many bits make 1 byte?

8 bits

How many bits are in a kilobyte?

1,000 bits

How many bits are in a megabyte?

1,000,000 bits

How many bits are in a gigabyte?

1,000,000,000 bits

How many bits are in a terabyte?

1,000,000,000,000 bits

What are the three different types of storage?

• Magnetic storage

• Optical storage

• Solid state or flash storage.

Example of magnetic storage

Hard Disk Drive

Example of optical storage

CD/DVD

Example of solid state/ flash storage

USB drives, flash drives, memory cards

What is Moore's Law?

Moore's Law is the observation that the number of transistors on an integrated circuit will double every two years with minimal rise in cost.