The Spectrum version was also voted number 58 in the Your Sinclair Readers ' Top 100 Games of All Time.

Rick Dickinson came up with a number of designs for the " ZX82 " project before the final ZX Spectrum design.

Because of the large number of unsold Spectrum + models, Sinclair decided not to start selling in the UK until January 1986 at a price of £ 179. 95.

The Spectrum + 2A /+ 3 motherboard ( AMSTRAD part number Z70830 ) was designed such that it could be assembled without the floppy disk controller or associated logic and a + 2 style " datacorder " connected.

The Spectrum + 2B motherboard ( AMSTRAD part number Z70833 ) does not have provision for floppy disk controller circuitry so cannot be assembled as a + 3B.

A number of notable games developers and development companies began their careers on the ZX Spectrum, including David Perry of Shiny Entertainment, and Tim and Chris Stamper ( founders of Ultimate Play The Game, now known as Rare, maker of many titles for Nintendo and Microsoft game consoles ).

Archie tried publishing superheroes again in the late 1980s with an imprint called Spectrum Comics, featuring a number of high-profile talents, including Steve Englehart, Jim Valentino, Marv Wolfman, Michael Bair, Kelley Jones, and Rob Liefeld.

There are several significant local employers, including Thornton & Ross ( a pharmaceuticals manufacturer ), Shaw Pallets, and Spectrum Yarns-one of a small number of remaining textiles businesses in the Colne Valley, once a major centre for wool.

By November, The NewZealand Story was number 2 in the Spectrum full-price games chart.

The Spectrum version was voted number 34 in the Your Sinclair Readers ' Top 100 Games of All Time.

It also became notorious for the overwhelming number of puzzle games for the system, something that Spectrum magazine Your Sinclair jokingly referred to on numerous occasions.

Using nature ’ s color spectrum as a guide, Apollo Design Technology uses a four digit number to designate and locate specific color transmissions: Visible Spectrum.

The ZX Spectrum version was placed at number 67 in the Your Sinclair official top 100, with reviewers praising the visceral sound effects.

The game was number one in the UK Spectrum sales chart for several months, until it was replaced by Sabre Wulf.

The number of U. S. households with a net worth of $ 1 million or more, not including first homes, fell by 2. 5 million to 6. 7 million in 2008, according to the Spectrum Group report, as reported by Reuters.

* Boulder Dash Construction Kit ( 1986 – Apple II, C64, Spectrum, Atari 8-bit computers, Atari ST ) – This release included a small number of levels, but was titled Boulder Dash IV – The Game for the Spectrum re-release.

The ZX Spectrum version was voted number 9 in the Your Sinclair Official Top 100 Games of All Time.

Manic Miner was placed at number 25 in the Your Sinclair official top 100 Spectrum games of all time, and was voted number 6 in the Readers ' Top 100 Games of All Time in the same issue.

It discarded a number of the less important features of the earlier product — the network and joystick ports, the inhibit button and the pass-through connector — and replaced its ancestor's plastic wedge-shaped design which fit under the Spectrum with a simple flat metal slab which protruded from the rear of the computer.

The ZX Spectrum version was voted number 1 in the Your Sinclair Readers ' Top 100 Games of All Time.

During his run on Supreme Power, Frank also provided covers for a diverse number of Marvel books, such as Silver Surfer # 7 ; Wolverine / Punisher # 2 ; The Incredible Hulk # 75 ; issues 4 and 6 of the Supreme Power spin-off miniseries, Doctor Spectrum ; The Amazing Spider-Man # 515 and 517 ; Black Panther # 10 ; and numerous others, as well as two pages of interior art for the Avengers: Finale one-shot.

*" For Love of a Gun ," the history, technologies of electromagnetic guns, IEEE Spectrum, July, 2007, pp. 40 ­ 46.

: IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies.

* 2008 Spectrum Design Solutions Inc. a design services company specicalising in Wireless technologies is acquired.

* World-Wide Spectrum Efficiency, an industry group formed espousing an approach to achieving next-generation wireless technologies.

The keyboard included a form of Single-key keyword input, similar to that used on the Sinclair Spectrum, via the ' func ' key.

Like the Spectrum, the Ace used black rubber keys.

They were first used in a new series of HP 3000 machines in the late 1980s – the 930 and 950, commonly known at the time as Spectrum systems, the name given to them in the development labs.

Microdrives had been introduced for the Sinclair ZX Spectrum in July 1983, although the QL used a different logical tape format.

Spectrum is also used to refer to a graphical representation of the as a function of the dependent variable.

The BASIC interpreter was developed from that used on the ZX81 and a ZX81 BASIC program can be typed into a Spectrum largely unmodified, but Spectrum BASIC included many extra features making it easier to use.

The Z80 processor used in the Spectrum has a 16-bit address bus, which means only 64 kB of memory can be directly addressed.

The power supply of the ZX Spectrum + 2A used the same pinout as the + 3.

Both systems had the ability to store memory images onto disk snapshots could later be used to restore the Spectrum to its exact previous state.

Amstrad launched two new variants of the Spectrum: the ZX Spectrum + 2, based on the ZX Spectrum 128, with a built-in tape drive ( like the CPC 464 ) and, the following year, the ZX Spectrum + 3, with a built-in floppy disk drive ( similar to the CPC 664 and 6128 ), taking the 3 " disks that many Amstrad machines used.

Studies show that under ideal propagation conditions ( simulations ), Direct Sequence Spread Spectrum ( DSSS ) provides the highest throughput for all nodes on a network when used in conjunction with CSMA / CA and the IEEE 802. 11 RTS / CTS exchange under light network load conditions.

While many 8-bit home computers of the 1980s, such as the Commodore 64, Apple II series, the Atari 8-bit, the Amstrad CPC, ZX Spectrum series and others could load a third-party disk-loading operating system, such as CP / M or GEOS, they were generally used without one.

It was used in the Nintendo Game Boy, the Sinclair ZX80, ZX81, ZX Spectrum and the Amstrad CPC home computers as well as the MSX architecture and the Tandy TRS-80 series — among many others.

*. sna, snapshot file used in ZX Spectrum emulation

( However the Spectrum Version came with a bug which could be used to produce identical items within a room )

In many eastern European countries, the various Spectrum clones used to be more common than the original models, a fact that also reflects in the choices of hardware among the demoscene.

ZX Spectrum have been shown in multi-platform parties, such as Assembly and there used to be a lot of ZX Spectrum only parties, such as Funtop in Moscow.