A One Instruction Set Computer -LRB- OISC -RRB- is a MISC@1 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- .
