IBM 4300
Models

Model
Announced
Withdrawn
Max Memory
Approximate Performance
4331
1979
1981
8MB
4 × 370/115
4341
1979
1986
16MB
3.2 × 370/138
4361
1983
1987
12MB
3 × 4331
4381
1983
1992
64MB
9 × 4341

Question: What models were announced in 1979?
Answer: The IBM 4341 was announced in 1979 like the 4331.