Computer Systems N5

Which component of a computer controls the entire system and is often called the brain of the computer?

• The Central Processing Unit

• The User

• The Monitor

• The Software

Select all the statements that are true of the Address Bus

• This bus is unidirectional

• Carries the address in which the data on the data bus is to be read from/saved to

• Carries data from the RAM to the CPU

• The bus has 6 wheels

Identify all the components that are part of the Central Processing Unit

• Input Device

• Control Unit

• Arithmetic/Logic Unit

• Output Device

• Registers

Identify two advantages of using Interpreters

• It is quicker to run through the program during the development stage

• Takes up less memory

• It is easier to locate errors as the interpreter highlights lines of code that caused the program to fail

• Translation is a lot slower

Identify two ways to save power when using a computer

• Just don't use one

• Adjust the monitor brightness

• Use sleep mode or power settings if not used after a period of time

• Throw it out the window after use

How is a bit-map graphic stored?

• In a grid of object and attributes

• In a grid of pixels

• In a grid of pixels where the colour is also stored as text

• In a grid of pixels where each pixel is stored as a binary number to represent the colour of the pixel

How is a vector graphic stored?

• Each pixel is stored as a binary number

• As a collection of objects

• As a collection of objects with the attributes of each object stored

• Each pixel is stored as a binary number in a grid of pixels.

Which of the following units of storage are smaller than an Megabyte?

• Bit

• Kilobyte

• Terabyte

• Gigabyte

Rosie has finished coding her Quiz program and it is error-free, what kind of translator should she use?

• Compiler

• Interpreter

Convert 65 to binary

• 01100001
• 00100001
• 01000001
• 00100101