A One Instruction Set Computer -LRB- OISC -RRB- is a Turing-complete abstract machine that uses only one instruction -LRB- obviating the need for a machine language opcode -RRB-.
A One Instruction Set Computer -LRB- OISC -RRB- is an abstract computer that uses only one instruction -LRB- with no need for a machine language opcode -RRB-.