Introduction
The A7000+ was launched in May 1997. It is an upgraded A7000 , the main changes were:
48MHz ARM7500FE with a built in floating point processor
8MB EDO memory
Bigger 1.2GB hard disc
RISC OS 3.71
I know of 3 versions of the A7000+:
AMC08 - 8MB, Network Interface
AMC10 - 8MB, 1.2GB hard disc
AMC50 - 8MB, 1.2GB hard disc and CD-ROM x8
After Acorn closed down their workstation division, Castle bought the rights to the A7000 and RiscPCs and continued to make them and produced further upgraded models such as the A7000+ Odyssey.
Documents and Manuals
Here is the Acorn A7000+ product brochure.
Here is the A7000+ Welcome Guide.
A7000+
I bought my A7000+ (AMC10) in September 2004 on ebay. The A7000+ has an ANT Issue 2 Combi Network Card (10Base2 and 10BaseT) installed.
Here are some pictures:
A7000+ running RISC OS 3.71
A7000+ running RISC OS 3.71. This model doesn't have a CD-ROM drive.
A7000+ logo
The only visible difference between an A7000 and an A7000+ is the '+' sign.
A7000+ (back)
The "knob" at the top right has been added to allow the A7000 to be physically secured to a desk or other secure object. Below the knob is the serial number with the podule slot blanking plate to its right. At the bottom are the ports, from left to right: reset switch, audio out, video out, keyboard, mouse, BNC and RJ45 Ethernet, printer and serial ports.
A7000+ with top cover removed
At the front left is the floppy disc drive. In the middle is the space for a CD-ROM drive or a single podule. At the back on the right is the power supply. In the middle at the back, partially covered by the drive support is the network card.
A7000+ motherboard
At the front left is the 4MB SIMM with the backplane slop on the right. In the middle are the RISC OS 3.71 ROMs. The square chip above and to the right is the ARM7500FE. In the middle is the socket for the network card with a gap in the back of the case for the BNC and RJ45 connectors.
规格Specification编辑本段回目录
Serial No. 80-AMC10-1010281
Unique identity 0050A401AFA6
Motherboard part no. 1102,200
CPU Type Cirius Logic ARM7500FE
CPU Model PS750FE-QC-A
CPU Clock 48MHz
Memory Controller IOMD
Memory 8MB on board
4MB EDO SIMM
Memory Clock 32MHz
Video Controller VIDC20
Floppy Disc Drive Sony MPF920-H
Hard Disc Controller on board IDE
Hard Disc Drive 1.2GB Fujitsu M1636TAU
Backplane Model n/a
Backplane part no n/a
Podule 0 n/a
NIC ANT Issue II Combi NIC
OS RISC OS 3.71
OS Date 19 Feb 1997
SICK v1.22
Dhrystone/sec
kWhetstones/sec
47548
5297
ARMSi v4.0
MIPS 28.41
相关链接编辑本段回目录
参考文献编辑本段回目录
http://acorn.chriswhy.co.uk/Computers/A7000+.html
http://en.wikipedia.org/wiki/Acorn_A7000
http://www.mcmordie.co.uk/acornhistory/riscpcsa.shtml
http://www.mcmordie.co.uk/acornhistory/riscpcsa.shtml
