Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum









 

C64 maze generator T-shirts!

see details
Ready prompt T-shirts!

see details
Spiral program T-shirts!

see details
BASIC code T-shirts!

see details
Pixel Deer T-shirts!

see details
Pak Pak Monster T-shirts!

see details
Shooting gallery T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details
Pixel adventure T-shirts!

see details





A > ACORN COMPUTER  > System 1   


Acorn Computer
System 1

This 6502 modular system was the first computer produced by Acorn in 1979. It was basically the same type of computer as competitors offered at that time (KIM-1, MK14, Nascom, etc...) : a 6502 or Z80 CPU (in this case, a 6502) mounted on a simple "naked" board, with a one-line display and a hexadecimal keyboard.

The System 1 is no exception : it featured an eight-digit seven-segment LED display, a hexadecimal keyboard (25 keys) and as there was no built-in BASIC in the computer, it had only machine-code.
Fortunately there was a tape-recorder interface communicating at 300 bauds.

Like all these types of "hobbyist" computers, the main advantage was the expandability of the system. They were quite cheap machines because they were shipped basically "naked". Then you had to buy whatever cards you wanted (video, BASIC, sound, etc...). Here the system was Eurocard compatible, which was a well-known expansion board standard at that time.
If then you had "too many" expansion cards, a Eurocard rack was available to organise the whole system.

The System 1 itself was composed of two Eurocard boards (one for the CPU and the other for the keypad and display) mounted one above the other (sandwiched, you could say), the two being connected by a ribbon cable.

ShareThis


 

 

NAME  System 1
MANUFACTURER  Acorn Computer
TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  1979
BUILT IN LANGUAGE  Machine code
KEYBOARD  Calculator-style hexadecimal keyboard, 25 keys
CPU  6502
SPEED  1 Mhz
RAM  1 kb
ROM  512 bytes
TEXT MODES  8 x 1 (8 digits seven-segment LED display)
GRAPHIC MODES  None
COLORS  None
SOUND  None
I/O PORTS  Eurocard bus (100 x 160 mm cards), Tape interface (300 bauds), RAM I/O (16 lines I/O)
POWER SUPPLY  External power supply unit (Option, £7)
PERIPHERALS  Memory expansion boards (4k / 8k), Video card, 4k Basic card, Assembler/desassembler card
PRICE  UK: Kit: £75 - Assembled: £91
France: Kit : 198 Assembled : 222


retro computing t-shirts and goodies
3D Cubes
BASIC code
Breakout
C64 maze generator
Pak Pak Monster
Pixel adventure
Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

Related Ebay auctions in real time - click to buy yours







 
Click here to go to the top of the page   
Contact us | members | about old-computers.com | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -