| Feature |
38G |
39G |
40G |
48S |
48SX |
48G |
48G+ |
48GX |
48GII |
49G |
49G+ |
| Memory |
32kB |
256kB |
256kB |
32kB |
32kB |
32kB |
128kB |
128kB |
128kB |
512kB |
512kB |
| Expansion port |
No |
No |
No |
No |
Yes |
No |
No |
Yes |
No |
No |
Flash card |
| Entry mode |
Algebraic |
Algebraic |
Algebraic |
RPN |
RPN |
RPN |
RPN |
RPN |
RPN + Algebraic | RPN + Algebraic |
RPN + Algebraic |
| Serial port |
Yes |
Yes |
No |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
USB |
| Performance index |
21 |
17 |
17 |
83 |
83 ? |
150 ? |
150 ? |
150 |
221 |
136 |
258 |
| Housing |
square, old |
round |
round |
square |
square |
square |
square |
square |
round |
round |
round |
| Keys |
HP-style |
Rubber |
Rubber |
HP-style |
HP-style |
HP-style |
HP-style |
HP-style |
advanced rubber |
Rubber |
advanced rubber |
| Software |
(3) |
(3) |
(1) |
(2) |
Mostly compatible with 48S |
||||||
| Programming |
Aplets |
Aplets |
Aplets |
RPL |
RPL |
RPL |
RPL |
RPL |
RPL |
RPL |
RPL |
| CAS (Computer Algebra System) |
No |
No |
Yes |
No |
No |
No |
No |
No |
Yes |
Yes |
Yes |
| Infrared port |
Yes |
Yes |
No |
Yes |
Yes | Yes | Yes | Yes | Yes |
No |
Yes |
| Printing |
IR |
Ser? |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser | Ser |
IR |
|
| Data exchange |
IR/Ser |
Ser |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser |
IR/Ser |
Ser |
IR/Ser | |
| Introduction |
4/1995 |
2000 |
2000 |
4/1991 |
3/1990 |
1/1995 |
3/1998 |
6/1993 |
11/2003 |
5/1999 |
11/2003 |
| 1. |
Compared to 48S: Additional realtime clock,
calendar software. |
| 2. |
Compared to 48S/SX: Better software. |
| 3. |
Compared to HP-38G: Additional Memory Manager,
extended plot features, added Inference, Trig Explorer and Quadratic
Explorer aplets. |