IRTalk, IrDA, and the Mac

In the 1990s, several Macs included infrared networking support, a legacy short range point-to-point technology often forgotten nowadays. It can be used to transfer files between Macs, to mobile phones, and to print to IrDA compliant printers, among other things. This article provides an overview of infrared networking on Macs and the models with built-in IrDA […]

Networking 101

Way back in the 1970s and early 1980s, it was rare enough to have a personal computer in the home, classroom, or office. Today it’s common to have several computers, tablets, and/or smartphones in the workplace, school, or home.

Maximum Hard Drive Size

Hard drive capacity is limited not only by how densely bits can be packed on a magnetic platter, but also by the number of sectors and tracks and drive surfaces in the drive itself and the number the computer’s operating system is designed to handle.

Apple and the ‘goto fail’ Bug

Late last week, Apple delivered iOS 7.0.6 and iOS 6.1.6 to address the “goto fail” bug in iOS and Apple TV OS 6.0.2 as well. This week it released OS X 10.9.2, Security Update 2014-001 for OS X 10.7 and newer, Safari 6.1.2 and 7.0.2 so everyone running OS X 10.7 Lion and newer will […]

Inside the Original Macintosh

This article was originally published on 2001.05.29 and is adapted from a series of articles and sidebars in the February 1984 issue of Byte magazine. Although some of the details included in this article are specific to the original Mac, many also apply to other compact Macs, such as the Plus, SE, SE/30, Classic, and Classic II.

Low End Mac’s Safe Sleep FAQ

Apple introduced a new feature, Safe Sleep, with Mac OS X 10.3 Panther in 2003. When enabled, Safe Sleep writes the contents of your Mac’s memory to a file named sleepimage on its hard drive before putting the computer to sleep (this works like the Hibernate command in Windows). In case the Mac loses power […]

The Truth About CRTs and Shock Danger

Let’s face it: High voltages are scary. When someone says “kilovolts”, you usually hear “killovolts”, right? And if you fire off a quick search on the Web, you find dire warnings everywhere that reinforce your natural fears. The warnings are so numerous and frightening, in fact, that it’s easy to believe that a CRT can […]

Core Duo Macs

When Apple made the switch from PowerPC CPUs to Intel in 2006, the state-of-the-art CPU was Intel’s Core Duo processor, which was based on Intel’s 32-bit Pentium M architecture, which was originally designed for mobile use. The Core Duo was Intel’s first dual-core mobile processor, and it was used in all first generation Intel Macs […]

Tanzania and Tanzania II Motherboards

The Tanzania motherboard was introduced in October 1996 and supports PowerPC 603e and 604e processors on a 40 MHz system bus. This motherboard was used in the Power Mac 4400, Motorola StarMax 3000 and 4000, Power Computing PowerCurve and PowerBase, and Umax SuperMac C500 and C600, as well as some lesser known clones.

Setting Up a Cable or DSL Router

There are several ways to attach a group of computers to the Internet. At work, we have a Cisco router, an ISDN connection, and a range of 128 IP addresses. At home, I’ve used IPNetRouter on my SuperMac J700/180, which also acts as a mail and list server. The $89 shareware program does a great […]