Apple  Apple II c Plus
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Apple IIc Plus

The Apple IIc Plus is the final model of the Apple II series produced by Apple Computer in 1988.

It has a 65C02 CPU running at 4MHz, 128KByte of RAM which was expandeable to 1.125MByte. It came with a 3.5" floppy disk drive and ran the ProDOS operating system. The machine itself was not really an upgrade to prior models, but rather integrated some of the existing peripherals of prior models into one machine. Being an 8-bit machine, it lacked in performance compared to the much more advanced 16-bit Apple II GS.

Video Modes

  • 40/80 x 24 text mode
  • 40/80x48 in 16 color
  • 280x192 in 6 color
  • 560x192 in 16 color with pixel placement restrictions
Text can be combined with graphic modes replacing the bottom 8 or 32 lines with text, depending on the video mode

Apple IIc Plus Internal

  1. MIG and 2KByte SRAM
  2. Internal modem connector
  3. Dual 8KByte CPU cache
  4. ASIC accellerator
  5. 65C02 CPU @4MHz
  6. Memory expansion connector

MOS 6502 CPU

The 6502 is an 8-bit MicroProcessor designed by MOS Technology. The team was led by Chuck Peddle and had also worked on the Motorola 6800. The 6502 is a simplified, but faster and cheaper design than the 6800.

The 6502 was introduced in 1975 and was the cheapest microprocessor on the market. Together with the Zilog Z80, the 6502 helped start the home computer revolution of the 1980s. The 6502 was used in a wide range of devices: the Atari 2600, the 8-bit Atari home computers, the Apple II, the Nintendo Entertainment System, the Commodore 64, the BBC Micro and many others. All used the 6502 or a variation of it.

The 6502 is a 1MHz design, while the 6502A is designed for 2MHz. The 6502A is 100% compatible with the original 6502.

Commodore soon bought MOS Technology, but conitnued to sell the microprocessor to competitors and licensed the design to other manufacturers.

Source: WikiPedia - MOS Technology 6502
Technical Details
Released 1988 Brand Apple Type Apple Series II Name Apple II c Plus CPU Class 650x CPU GTE 65C02 @4MHz Memory RAM: 128kB
RAM max: 1.125MB
Sound Chip none Sound 1-bit sound Display Chip none Display 80x48 16 colors
560x192 16 colors
Best Text 80x48 Best Color 16 colors Best Graphics 560x192 in 16 colors Sprites none System OS Apple DOS Storage Internal 3.5" Disk Drive Original Price $1099
Related Systems
Apple Series I
Apple Series II
Apple II  c Plus (1988)
Apple Series III
Apple Macintosh
Apple Macintosh II
Apple Macintosh LC & Quadra
Apple Newton
Related Media
6502 CPU
Collection of books on the 6502 and compatible CPUs
Apple Macintosh
Books about the Apple Macintosh, the first mass-market personal computer with a graphical user interface.
InCider and A+
InCider Magazine for Apple Computers, later fused with A+
The 6502/6809 Journal
Peeker Magazine
Peeker, a German language magazine for Apple Computer users.
World Wide Web Links
MOS 6502 CPU Wiki Page
The 6502 is an 8-bit MicroProcessor designed by MOS Technology.