The ROM contained the Sinclair BASIC programming language, editor, and operating system.
Both computers can be made by hobbyists using commercially available discrete logic chips or FPGAs.
SINCLAIR ZX SPECTRUM EBAY UPGRADE
However this was mainly a cost-reduction effort the hardware functionality and system programs were very similar, with the only significant difference being the NMI-generator necessary for slow mode in the ZX81 (see ZX81 for technical details), and the 4K integer-only Sinclair BASIC upgraded to 8K floating-point-capable, with the upgraded ROM also available as upgrade for the ZX80. The successor ZX81 used a semi-custom chip (a ULA or Uncommitted Logic Array) which combined the functions of much of the earlier hardware onto a single chip reducing the chip-count from 21 to 4. The ZX80 was designed around readily available TTL chips the only proprietary technology was the firmware. Internally, the machine was designed by Jim Westwood around a Z80 central processing unit with a clock speed of 3.25 MHz, and was equipped with 1 KB of static RAM and 4 KB of read-only memory (ROM). Following that initial raft of devices 10 per cent of net revenue from all sales will be donated.The ZX80 was named after the Z80 processor with the 'X' meaning "the mystery ingredient".
SINCLAIR ZX SPECTRUM EBAY SOFTWARE
Not so obvious is the new hardware expansion interface on the circuit board and the implementation of software upgradeability.įor every one of the first 4,000 Sinclair ZX Spectrum Vega games console sold the company will donate £5 to Great Ormond Street Hospital Children's Charity. "We are especially grateful to those Spectrum fans who have made suggestions as to additional features they would like to see in the Vega, and we have taken all those suggestions seriously, we have discussed them, and we have decided to implement two of them in the first release of the Vega," noted Smith.Īs you can see in the video above, and picture at the top of this page, the improvements include a bevy of new rubber keys. The consoles are being manufactured by SMS Electronics Ltd in Beeston, Nottinghamshire.Ĭhris Smith said that since the project announcement, the Vega has already benefitted from suggestions and feedback made by fans. A production run of 3,000 will be made available in July then, as long as orders keep up, 10,000 will be produced in August or September. Looking at the IndieGogo project page this production run has already sold out in entirety. According to a press release we received today the first 1,000 units will be shipped to customers at the end of May. Purchasers will have to wait for the machines to be dispatched however. As mentioned in the headline, the machines are now available to order on the Retro Computers website. The Sinclair ZX Spectrum Vega was designed by Chris Smith, Technical Director at Retro Computers, makers of the new retro gaming device. The device comes 32 years after the original Sinclair Spectrum was launched and is bundled with 1,000 classic games for your retro-gaming nostalgic pleasure. It was announced as a crowdfunding project launched and backed by Sir Clive Sinclair which collected £155,000 from backers. We first heard about this console back in December last year. People can now buy the Sinclair ZX Spectrum Vega games console.
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