Why Hypercard Had to Die

The reason for this is that HyperCard is an echo of a different world. One where the distinction between the “use” and “programming” of a computer has been weakened and awaits near-total erasure. A world where the personal computer is a mind-amplifier, and not merely an expensive video telephone. A world in which Apple’s walled garden aesthetic has no place.

What you may not know is that Steve Jobs killed far greater things than HyperCard. He was almost certainly behind the death of SK8. And the Lisp Machine version of the Newton. And we may never learn what else. And Mr. Jobs had a perfectly logical reason to prune the Apple tree thus. He returned the company to its original vision: the personal computer as a consumer appliance, a black box enforcing a very traditional relationship between the vendor and the purchaser.

via Loper OS » Why Hypercard Had to Die.

HyperCard

HyperCard is an application program created by Bill Atkinson for Apple Computer, Inc. that was among the first successful hypermedia systems before the World Wide Web. It combines database capabilities with a graphical, flexible, user-modifiable interface.[1] HyperCard also features HyperTalk, written by Dan Winkler, a programming language for manipulating data and the user interface. Some HyperCard users employed it as a programming system for Rapid Application Development of applications and databases.

HyperCard was originally released in 1987 for $49.95, and was included with all new Macs sold at the time.[2] It was withdrawn from sale in March 2004, although by then it had not been updated for many years.

via HyperCard – Wikipedia, the free encyclopedia.

New Study Reinforces Case for DC Power Savings

But advocates of DC power continue to make the case for direct current distribution in data centers. The recent Data Center Efficiency Summit featured a case study showing gains over AC systems, and discussion of whether global efforts to establish a standard for 380 volt systems might build momentum for DC power.

via New Study Reinforces Case for DC Power Savings » Data Center Knowledge.

Terahertz wireless chip brings 30Gbps networks, subcutaneous scanning

Rohm, a Japanese semiconductor company, has created a silicon chip and antenna that’s currently capable of transmitting 1.5Gbps, with the potential to scale up to 30Gbps in the future. By comparison, the fastest 802.11 (WiFi) transmission speeds max out at around 150Mbps, and the incoming WiGig standard peaks at 7Gbps.

via Terahertz wireless chip brings 30Gbps networks, subcutaneous scanning | ExtremeTech.

Shoreline Firewall

Shoreline Firewall.

The Shoreline Firewall, more commonly known as Shorewall, is high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files. Shorewall reads those configuration files and with the help of the iptables, iptables-restore, ip and tc utilities, Shorewall configures Netfilter and the Linux networking subsystem to match your requirements. Shorewall can be used on a dedicated firewall system, a multi-function gateway/router/server or on a standalone GNU/Linux system. Shorewall does not use Netfilter’s ipchains compatibility mode and can thus take advantage of Netfilter’s connection state tracking capabilities.

Shorewall is not a daemon. Once Shorewall has configured the Linux networking subsystem, its job is complete and there is no Shorewall process left running in your system. The /sbin/shorewall program can be used at any time to monitor the Netfilter firewall.

Schneier on Security: My Open Wireless Network

Whenever I talk or write about my own security setup, the one thing that surprises people — and attracts the most criticism — is the fact that I run an open wireless network at home. There’s no password. There’s no encryption. Anyone with wireless capability who can see my network can use it to access the internet.

via Schneier on Security: My Open Wireless Network.