Apple Inc. is a multinational company that designs and manufactures consumer electronics and software products known more for its hardware products include the Macintosh computers, iPods and the iPhone. For users of different computers, the company has defined the PC industry through technological innovation, and changed the perception of personal computing. Since 1976, the company has reinvented itself several times as it has developed and improved the Macintosh, which affect the world of the computer whenever he did. Macintosh or Mac, is a line of personal computers designed, developed and marketed by Apple after its introduction in 1984. Now, we will make a historic journey and learn how evolution has led to the revolution Apple Mac. The iSold Apple as a board of circuit assembly, it lacks basic features such as a keyboard, monitor, and case. It was sold as a motherboard (with CPU, RAM chips and basic textual-video) less than what is today considered a complete personal computer. The Apple I was sold in July 1976 and was the market price of $ 666. 66. The Apple II was introduced April 16, 1977 and differs from its main rivals, the TRS-80 and Commodore PET, because it came with color graphics and open architecture. While early models used ordinary cassette storage devices, they were replaced by the introduction of a 5 1 / 4 inch floppy drive and interface, the Disk II. Apple LisaWith a price of $ 10,000, was released in 1981 and remembered as one of the most disappointing Apple. It was a system more advanced than the Macintosh of the day in many ways, its inclusion as protected memory, cooperative multitasking, a hard drive generally more sophisticated based operating system, a high-screensaver, a Advanced calculator with paper tape and RPN, support for up to 2 MB of RAM, expansion slots and a higher display resolution higher. Mac 128KApple launched the Macintosh in a famous 1984 Super Bowl with a beige box that contains a 9-inch screen and comes with a keyboard and mouse. There was a sale price of $ 2,495. It has 8 MHz Motorola 68000 microprocessor, 128 kbytes of DRAM, 64 KB ROM chip that boosts effective memory to 192 KB. Mac IIRetailing for U.S. $ 3898 base price (for CPU only), the Macintosh II was the first “modular” model of Macintosh, so called because it came in a horizontal desktop case as many PCs of the time. He introduced the space for an internal hard drive (originally 20 MB or 40 MB) and a second optional floppy drive. PortableIt Mac was Apple’s first attempt to make a pile of Macintosh laptops that had the power of a Macintosh desktop. It was released in September 1989 and received with enthusiasm by most critics but with very poor sales to consumers. With a price of $ 6500, it offered a B & W screen active matrix LCD, ergonomic keyboard, trackball and battery lead acid life 10 hours. He used expensive SRAM in an effort to maximize battery life and provide an instant “on” mode for low power sleep. The 20th anniversary Macto celebrate its 20th birthday, January 7, 1997 Apple has unveiled the limited edition of the Twentieth Anniversary Macintosh (TAM) at the MacWorld Expo in San Francisco. At $ 7,499 the 603rd MNT included a 250 MHz processor, 12. 1 “active matrix LCD with 2 MB of VRAM, 4x CD-ROM, 2 GB hard drive ATA, vertically mounted drive Apple SuperDrive, and a TV / FM tuner, S-Video card, and a custom-made Bose sound system. It has a trackpad instead of a mouse, which could be detached from the keyboard if desired. When he is not required, the keyboard can slide under the head of the unit TAM, leaving exposed the trackpad for permanent access. iMacIntroduced in 1998, the iMac is a line of all-in-One desktop Macintosh. The original form of all, the iMac G3 in the shape of egg with a CRT monitor, identified by color, translucent plastic. In the second revision, the iMac G4, moved to the design of a hemispherical base containing all the main components and an LCD monitor on an arm to move freely set atop the base. The iMac G5 and iMac Intel placed all the components directly behind the screen, creating a slim design which tilts up and down on a metal base simple. Earlier this year, Apple has updated its offer for the iMac with the NVIDIA chipsets and the new Mini DisplayPort. Airon MacBook January 15, 2008, the company launched its the ultraportable MacBook Air, a computer that the company billed as the mobile the world’s thinnest, priced starting at $ 1799. Sporting a silvery finish, the MacBook Air has a 13. 3-inch widescreen LED-backlit, which has a resolution of 1280 x 800 pixels. It weighs about 3 pounds and sports a thickness of 0. 16-0. 76 inches. He is 12. 8 inches wide and 8. 95 inches deep. Several features have been sacrificed to reduce the size of the computer and weight. It is Apple’s first notebook since the PowerBook 2400c without a built-in removable media drive. It also omits a FireWire port, Ethernet port, line-in card slots and a Kensington security. The battery is internal, not the user removable RAM is soldered onto the motherboard. One speaker is included for mono sound. It has been revised once since the original version.