60
edits
HP 48: Difference between revisions
m
no edit summary
mNo edit summary |
mNo edit summary |
||
| Line 8: | Line 8: | ||
User RAM is 32 KB in the S, SX, and G models and 128 KB in the GX and G+ models. | User RAM is 32 KB in the S, SX, and G models and 128 KB in the GX and G+ models. | ||
Note due to the change from FOCAL to an ECMA94 character set, from this model onwards the corresponding printer is HP82240B which had ECMA94 support. Printing with HP82240A is also possible using the OLDPRT command for compatibility. | |||
== HP 48SX == | == HP 48SX == | ||
{{Infobox calculator|name=HP 48GX|predecessor=HP 48SX|successor=HP 48G+|processor=Yorke (4MHz Saturn)}} | {{Infobox calculator|name=HP 48GX|predecessor=HP 48SX|successor=HP 48G+|processor=Yorke (4MHz Saturn)}} | ||
The HP 48SX was the first model of the series, released in 1990. It expands on the features of the HP 28S, expanding upon the RPL system. It adds several new object types, a new powerful unit conversion system, a graphical equation editor (the first of its kind on a calculator) and matrix editor, more graphing options, serial and IR communications, and a clock and alarm system. The model number comes from a combination of the HP 41 and the HP 28, as it bridges the best features of both systems. | The HP 48SX was the first model of the series, released in 1990. It expands on the features of the HP 28S, expanding upon the RPL system. It adds several new object types, a new powerful unit conversion system, a graphical equation editor (the first of its kind on a calculator) and matrix editor, more graphing options, serial and two-way IR communications which allowed peer-to-peer object transfers between two 48 series calculators, in addition to printing to HP 82240B, and a clock and alarm system. The model number comes from a combination of the HP 41 and the HP 28, as it bridges the best features of both systems. | ||
It used a 2 MHz Saturn processor known as Clarke, and was shipped with 256 KB of ROM and 32 KB of RAM. The "X" which stood for "expandable" refers to the two memory slots behind the IR cover which allowed additional ROM or RAM cards to be inserted, labelled "Port 1" and "Port 2" from inside out. Both ports supports operation in either "merged" mode, as in using the additional RAM as part of the main RAM, or in "free" mode, treating the memory as independent storage areas. As a result the HP 48SX has the largest merged RAM in the series with two cards plugged in, at (32+128+128 =) 288KB. However, this represent only just over half of the internal memory address space of 512KB. ROM card contents are accessed using the LIBRARY function. | It used a 2 MHz Saturn processor known as Clarke, and was shipped with 256 KB of ROM and 32 KB of RAM. The "X" which stood for "expandable" refers to the two memory slots behind the IR cover which allowed additional ROM or RAM cards to be inserted, labelled "Port 1" and "Port 2" from inside out. Both ports supports operation in either "merged" mode, as in using the additional RAM as part of the main RAM, or in "free" mode, treating the memory as independent storage areas. As a result the HP 48SX has the largest merged RAM in the series with two cards plugged in, at (32+128+128 =) 288KB. However, this represent only just over half of the internal memory address space of 512KB and is achieved at the expense of permanantely occupying two slots. ROM card contents are accessed using the LIBRARY function. | ||
== HP 48S == | == HP 48S == | ||