What does a ZX Spectrum do?
The Sinclair ZX Spectrum was an affordable computer that introduced colorful gaming and amateur programming for the masses. It was so popular that it spawned magazines like Sinclair User, published in the UK between 1982 and 1993. Its creator, Clive Sinclair, died this week at age 81.
What is ULA chip?
The heart of the ZX Spectrum series of computers is a custom chip called the ULA (Uncommitted Logic Array). This was a technology pioneered by Ferranti, of which Sinclair was one of the first adopters (incorporating all of the discrete logic of the ZX80, plus a NMI generation circuit into the initial ZX81 2C158E ULA).
What is gate array design?
A gate array is an approach to the design and manufacture of application-specific integrated circuits (ASICs) using a prefabricated chip with components that are later interconnected into logic devices (e.g. NAND gates, flip-flops, etc.) according to a custom order by adding metal interconnect layers in the factory.
What is gate array cell?
A gate array is logic gates that are pre-laid in matrix form on a chip, as illustrated in Fig. Actually, unconnected components of logic gates, which are called cells (these cells should be differentiated from the cells in the cell library to be described later), are pre-laid instead of logic gates.
Will a ZX Spectrum work on a modern TV?
Back in the 1980’s the RF output from the ZX Spectrum was fine for the vast majority of televisions to tune into. This device is an interface that provides an HDMI signal to modern televisions, and is perhaps the simplest solution as it is plug and play and works with all Spectrums.
What is the full form of ZX?
| Acronym | Definition |
|---|---|
| ZX | Airship Development Squadron (US Navy aviation unit designation used from 1950 to 1957) |
| ZX | Airship Operational Development Squadron (US Navy aviation unit designation used from 1950 to 1957) |
What kind of color palette does the ZX Spectrum use?
The ZX Spectrum (and compatibles) computers uses a variation of the 4-bit RGBI palette philosophy. This results in each of the colors of the 3-bit palette having a basic and bright variant, with the exception of black.
How big is the screen on the ZX Spectrum?
Standard ZX Spectrum screen The original ZX Spectrum has a screen resolution of 256×192 pixels. Colour information is overlaid onto this as a grid of 8×8 pixel regions known as attribute blocks; within each attribute block, only two colours may be used out of a palette of 8 (black, blue, red, magenta, green, cyan, yellow and white).
What is the luminesence of the ZX Spectrum?
A true-to-hardware palette. Please note that the luminesence of the ZX Spectrum is dictated by the voltage output of the hardware (85% voltage for non-bright, 100% for bright) – so instead of using E/F values as dictated in the wikipedia article in the hex for non-bright/bright, the colours are instead D8/FF (D8 being 85% of FF).
What does border n mean in ZX Spectrum?
BORDER n, the colour for surrounding area outside the main bitmap. PAPER n, the background (pixel bit value of 0) colour for the colour cell to be altered. INK n, the foreground (pixel bit value of 1) colour for the colour cell to be altered.
