Commodore D9060The Commodore D9060/D9090 Hard Disks were the only family of hard drives that Commodore made for both the home and business market. The electronics are identical in the D9060 and the larger D9090 unit; the only difference is the size of the installed hard drive, with a jumper set to distinguish between 4 or 6 disk heads. Originally intended for the metal-cased PET/CBM series of computers, they are compatible with the VIC-20, Commodore 64 and later models with an adapter.
Commodore 8050The Commodore 8050, Commodore 8250, and Commodore SFD-1001 are 5¼-inch floppy disk drives manufactured by Commodore International, primarily for its 8-bit CBM and PET series of computers. The drives offered improved storage capacities over previous Commodore drive models.
Commodore 1541The Commodore 1541 (also known as the CBM 1541 and VIC-1541) is a floppy disk drive which was made by Commodore International for the Commodore 64 (C64), Commodore's most popular home computer. The best-known floppy disk drive for the C64, the 1541 is a single-sided 170-kilobyte drive for 5¼" disks. The 1541 directly followed the Commodore 1540 (meant for the VIC-20).
Commodore 4040The Commodore 4040 is the replacement for the previous models 2040 (U.S.) and 3040 (Europe). It's a dual-drive 5¼" floppy disk subsystem for Commodore Business Machines. It uses a wide-case form, and uses the parallel IEEE-488 interface common to Commodore PET/CBM computers.
Disk operating systemA disk operating system (DOS) is a computer operating system that requires a hard disk (HDD), floppy disk, solid-state drive (SSD), or other direct-access storage device as secondary storage. A DOS provides a file system and a means for loading and running programs stored on the disk. The term is now historical, as most if not all operating systems for general-purpose computers now require direct-access storage devices as secondary storage.
Commodore InternationalHome computer and electronics manufacturerCommodore International Corporation (CI), also known as Commodore International Limited, was a home computer and electronics manufacturer with its head office in The Bahamas and its executive office in the United States. Founded in 1976 by Jack Tramiel and Irving Gould, it was the successor company to Commodore Business Machines (Canada) Ltd., established in 1958 by Tramiel and Manfred Kapp.
Read-only memoryRead-only memory (ROM) is a form of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device. Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware. Software applications, such as video games, for programmable devices can be distributed as plug-in cartridges containing ROM.
HexadecimalBase-16 numeric representation Hexadecimal (or hex for short) is a positional numeral system for representing a numeric value as base 16. For the most common convention, a digit is represented as "0" to "9" in the same way as decimal and as a letter of the alphabet from "A" to "F" (either upper or lower case) for the digits with decimal value 10 to 15.
Random-access memoryForm of computer memoryExample of writablevolatile random-access memory: Synchronous dynamic RAMmodules, primarily used as main memory in personal computers, workstations, and servers.
Central processing unitA central processing unit (CPU), also known as a central processor, main processor, or simply processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. This role contrasts with that of external components, such as main memory and I/O circuitry, and specialized coprocessors such as graphics processing units (GPUs).
Local area networkA local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, campus, or building, and has its network equipment and interconnects locally managed. LANs facilitate the distribution of data and the sharing of network devices, such as printers.
MOS Technology 6502The MOS Technology 6502 ("sixty-five-oh-two") is an 8-bit microprocessor that was designed by a small team led by Chuck Peddle at MOS Technology and was launched in September 1975. The design team had formerly worked at Motorola on the Motorola 6800 project; the 6502 is essentially a simplified, less expensive and faster version of that design using depletion-load NMOS technology that made using the microchip in computers much cheaper.*As an Amazon Associate I earn from qualifying purchases.