22May Zx Spectrum
Hardware
ZX Spectrum 48K motherboard (Issue 3B 1983, heat sink removed)
The Spectrum is based on a Zilog Z80A CPU running at 3.5 MHz (or NEC D780C-1 clone). The original model Spectrum has 16 KB (161024 bytes) of ROM and either 16 KB or 48 KB of RAM. Hardware design was by Richard Altwasser of Sinclair Research, and the machine’s outward appearance was designed by Sinclair’s industrial designer Rick Dickinson.
Video output is through an RF modulator and was designed for use with contemporary portable television sets, for a simple colour graphic display. Text can be displayed using 32 columns 24 rows of characters from the ZX Spectrum character set or from a set provided within an application, from a palette of 15 shades: seven colours at two levels of brightness each, plus black. The image resolution is 256192 with the same colour limitations. To conserve memory, colour is stored separate from the pixel bitmap in a low resolution, 3224 grid overlay, corresponding to the character cells. Altwasser received a patent for this design.
An “attribute” consists of a foreground and a background colour, a brightness level (normal or bright) and a flashing “flag” which, when set, causes the two colours to swap at regular intervals. Unfortunately, this scheme leads to what was dubbed colour clash or attribute clash with some bizarre effects in the animated graphics of arcade style games. This problem became a distinctive feature of the Spectrum and an in-joke among Spectrum users, as well as a point of derision by advocates of other systems. Other machines available around the same time, for example the Amstrad CPC, did not suffer from this limitation. The Commodore 64 used colour attributes in a similar way, but a special multicolour mode, hardware sprites and scrolling were used to avoid attribute clash.
22May Why we need website terms and conditions page?
Web site Terms and Conditions
This post contains a brief data vis-à-vis web site terms and conditions whereby you can safeguard you on the web enterprise.
Site Terms and Conditions
The Terms and Conditions of a site basically set out a contract between the internet site and its visitors. They are there to safeguard your visitors but much more importantly, to safeguard you.
What sort of Web sites needs Terms and Condition Statements?
If you are running a organization site, I would definitely recommend that you have a terms and conditions statement. This is particularly accurate if you are selling a product or service on your site.
It is a legal requirement for sites to have a minimum amount of details. This includes contact details and where a product or service is being sold, the identity of the supplier. It is a excellent concept to communicate these points in the terms and conditions of your internet site.
22May Do You Own Your SaaS Website? Part 1: 5 Copyright Myths Debunked
Copyright © 2009 Chip Cooper
Your SaaS website represents an crucial investment. It may possibly create income for you – possibly even a lot of income… either now or in the future.
What if someone created you an supply to purchase your internet site – an supply you cannot refuse? Do you genuinely own your internet site and all of its components? Could you transfer clear ownership to the buyer? Or does the deal fall via simply because, upon close examination, you actually don’t own it – or key parts of it?
Your Website’s Components If you want to analyze the ownership of your SaaS site, you want to think in terms of its component parts. These incorporate: