Data Representation - Instructions

CPU executes instructions written in:

• Machine code
• Assembler
• High level language
• Database language

A CPU instruction is made of how many parts?

• 2
• 3
• 1
• 4

One machine code instruction consists of an "opcode" which stands for operation code and:

• memory address
• user input
• memory code
• number code

Which of the following is not an operation code:

• 1100
• ADD
• BRZ
• END

Machine code instructions written for one CPU will probably work on most others.

• False
• True

Which of the following is not a common CPU mnemonic?

• MULT
• ADD
• SUB
• LDA

The mnemonic LDA stands for:

• Load accumulator
• Load dynamic array
• Let digits append

The concept where instructions and the data that relates to the instructions share the same CPU registers is known as:

• The Von Neumann Architecture
• Assembler
• Mnemonics
• High level programming language

CPU can tell opcodes from data without any additional information.

• False
• True

The Von Neumann architecture works on this cycle:

• Fetch-Execute
• Load-Process-Store
• Begin-Process-Halt