Acorn A7000
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| Developer | Acorn Computers |
|---|---|
| Manufacturer | Acorn Computers |
| Operating system | RISC OS |
| CPU | 32 MHz ARM7500 |
| Memory | 4 MiB - 132 MiB RAM |
| Dimensions | 102 mm (4.0 in) (h) 357 mm (14.1 in) (w) 283 mm (11.1 in) (d) |
| Successor | A7000+ |
| Related articles | Risc PC |
| Developer | Acorn Computers |
|---|---|
| Manufacturer | Acorn Computers, Castle Technology[1] |
| Operating system | RISC OS |
| CPU | 48 MHz-56 MHz ARM7500FE |
| Memory | 8 MiB - 136 MiB RAM |
| Dimensions | 102 mm (4.0 in) (h) 357 mm (14.1 in) (w) 283 mm (11.1 in) (d) |
| Successor | Phoebe, Iyonix PC, A9home |
| Related articles | Risc PC |
The A7000 and A7000+ were Acorn Computers' entry level computers based on the Risc PC architecture. Launched in 1995,[2] they replaced some of the models of the Acorn Archimedes range.[3] After the breakup of Acorn Computers in 1998, Castle Technology bought the rights to continue production of the A7000+.[4] The A7000 used the ARM7500 system on chip which combined the separate ARM CPU, MMU, VIDC20 video chip and IOMD IO controller of the Risc PC into a single chip.[2]
Contents
Specifications and technical details[5][6]
- CPU: A7000, ARM7500 clocked at 32 MHz. A7000+, ARM7500FE, with hardware floating point unit, clocked at 48 MHz or 56 MHz (Castle A7000+).
- Memory type: 4 MiB FPM (8 MiB EDO A7000+) motherboard mounted and, 1 SIMM slot, supporting a maximum memory size of 132 MiB (136 MiB A7000+).
- Video subsystem: VIDC20 controller integrated into ARM7500 core, display memory is shared with main memory.
- Expansion: One Eurocard-sized Podule support in common with Archimedes-series machines. One internal network card socket.
- Case: One 3.5 inch bay, with floppy drive, one 5.25 inch bay for a CD-ROM. Note, only one of a CD-ROM/DVD-ROM or a Eurocard Podule could be fitted.
- Ports: RS-232 Serial, Parallel, PS/2 keyboard, PS/2 mouse, headphone audio out, DE15 VGA, network (optional).
- Dimensions, HxWxD: 102 x 357 x 283 mm
- Operating System: RISC OS 3.60 (A7000), RISC OS 3.71 (A7000+). RISC OS 4 is available as a replacement for the Acorn-implemented versions which came fitted as standard. Alternatively NetBSD[7] or ARM Linux (historically)[8]
Modifications
A user modification (dubbed the A7KP) to rehouse an A7000+ as a portable weighing 5 lbs was seen in 2011.[9]
Milestones
- 1995 - A7000 launched, featuring a 32 MHz ARM7500 processor.
- 1997 - A7000+ launched, featuring a 48 MHz ARM7500FE processor.[10]
- 1998 - Acorn Computers is broken up and Castle Technology buys the rights to continue A7000+ production.[4]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Chris's Acorns - Acorn A7000
- ↑ Technical history of Acorn - RPC700 and A7000
- ↑ 4.0 4.1 Chris's Acorns - Castle A7000+
- ↑ Acorn Risc Technologies - A7000 Factsheet
- ↑ Acorn Clan Newsletter - A7000+
- ↑ NetBSD acorn/32 project page
- ↑ ARM Linux - Overview of Acorn Machines
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Chris's Acorns - Acorn A7000+
