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The computer was, at the time, an inexpensive, consumer-oriented computer that would easily connect to the Internet. The second major revision, the iMac G4 , moved a design with a hemispherical base containing all the main components and an LCD monitor on a freely moving arm attached to it.
The 17-inch model was completely removed from the lineup, and it was available only in 20-inch and 24-inch models. [18] The 24-inch model's display has better contrast and color conformity over a wide range of viewing angles. [18] There is only one visible screw on the entire computer, located at the base of the iMac for accessing the memory slots.
The iMac G4 [a] is an all-in-one personal computer designed, manufactured, and sold by Apple Computer from January 2002 to August 2004. The computer is comprised of a hemispheric base that holds the computer components, including the PowerPC G4 processor, with a flatscreen liquid-crystal display (LCD) mounted above.
PC—Personal Computer; PCB—Printed Circuit Board; PCB—Process Control Block; PC DOS—Personal Computer Disc Operating System; PCI—Peripheral Component Interconnect; PCIe—PCI Express; PCI-X—PCI Extended; PCL—Printer Command Language; PCMCIA—Personal Computer Memory Card International Association; PCM—Pulse-Code Modulation
Brad Cox refined the concept of a software component in the 1980s. [7] He attempted to create an infrastructure and market for reusable third-party components by inventing the Objective-C programming language. [8] IBM introduced System Object Model (SOM) in the early 1990s. [9] Microsoft introduced Component Object Model (COM) in the
Industrial version of the IBM PC XT [33] [34] Industrial Computer 5531: 5531-011 April 1984: Unknown ISA, 8-bit 8 3 Intel 8088: 4.77 256 KB 640 KB 1.2 MB none Industrial version of the IBM PC XT [33] [34] [35] Industrial Computer 5531: 5531-021 May 1985: Unknown ISA, 8-bit 8 3 Intel 8088: 4.77 256 KB 640 KB 1.2 MB 20 MB Industrial version ...
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Software consists of computer programs that instruct the execution of a computer. [1] Software also includes design documents and specifications. The history of software is closely tied to the development of digital computers in the mid-20th century.