CPU & Storage

Part of the CPU that performs arithmetic operations and logical operations and controls the speed of those operations.

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

• Register

• Bas

Special high-speed memory area on a chip that the CPU can access quickly

• cache

• RAM

• ROM

• MEMORY

Why cache is important?

• it retains data even when the power is turned off.

• data is retained when the power is turned off

• Cache speeds up processing.

• It holds up to 4 gigabytes of data and is very convenient to transport and use

Why flash memory stick is important?

• it retains data even when the power is turned off.

• data is retained when the power is turned off

• Cache speeds up processing.

• It holds up to 4 gigabytes of data and is very convenient to transport and use

Measure of speed used for the latest generation of processors

• megabyte (M, MB)

• exabyte (EB)

• gigabyte (G, GB)

• gigahertz (GHz)

How is data represented in a computer,

• Using binary system

• using mnemonic code

• using bytecode

• using opcode

For every instruction, the control unit carries out four basic operations, known as the machine cycle. What is the activity in step 2?

• catch

• execute

• decode

• register

For every instruction, the control unit carries out four basic operations, known as the machine cycle. What is the activity in step 3?

• catch

• execute

• decode

• register

RAM (random access memory) chips temporarily

• Improves disk performance and store data temporary

• hold software instructions and data before and after it is processed by the CPU.

• stores instructions and data that the processor is likely to use frequently.

• retrieve programs from the ROM chip but cannot modify or add to those programs.

_________ is to represent letters, numbers, or special characters (such as ! or *), bits are combined into groups

• megabyte

• kilobyte

• byte

• bit