The ULA controlled memory access and was able to provide 32K × 8 bits of addressable RAM using 4 × 64K × 1-bit RAM chips ( 4164 ).

By moving the lowest 8 KB of RAM outside of reach of the ULA, the CPU could always access it at 2 MHz.

* RAM: 8 kB

The 1MB machine ( 128k of ROM, 128k of video RAM, 768k of system RAM ) promised graphics with 256 colours on-screen simultaneously, could handle 3 million pixels per second, output 8 channel stereo and had a blitter chip that allowed vertical and horizontal hardware scrolling.

* RAM ( integrated into CPU ): 64 bits ( TMS1100 ), 8 bytes ( 8021 )

* MOS Technology 6508 – CPU with 256 B RAM and 8 I / O pins

It included between 8 and 64 MB of random access memory ( RAM ), a 256 MB magneto-optical ( MO ) drive, a 40 MB ( swap-only ), 330 MB, or 660 MB hard drive, 10Base-2 Ethernet, NuBus and a 17-inch MegaPixel grayscale display measuring 1120 by 832 pixels.

* Sharp LH52B256-256K ( 32K x 8 ) Static RAM chip

This came in 1995, as an Apple Motherboard containing a 100 MHz 603e processor and 8 MB of RAM ( which snapped into a slot containing the previous 25 or 33 MHz 68040 processor and the 4 MB of RAM on the previous daughterboard ).

They used 8 MHz Motorola 68000 CPUs with of RAM and had no disk drives.

* RAM: 8 KB

Later issue machines required the fitting of 8 dynamic RAM chips and a few TTL chips.

Users could add a Solid-state Storage Device, with 8 to 32 million words of MOS RAM.

* NC100 ( Z80, 64 KB RAM, 80 × 8 character LCD )

* PC1512 ( Intel 8086, 8 MHz, 512 KB RAM, CGA graphics )-Marketed in the United States as the PC5120

* PC1640 ( Intel 8086, 8 MHz, 640 KB RAM, MDA / Hercules / CGA / EGA colour graphics )-Marketed in the United States as the PC6400

* PC2086 ( Intel 8086 CPU, 8 MHz, 640 KB RAM, VGA graphics ) launched 1989

* PC3086 ( 8 MHz 8086 CPU, 640 KB RAM )

* PC5086 ( 8 MHz 8086 CPU, 640 KB RAM )

It had a full set of hardware and software components: a disk operating system included in a series of programmable read-only memory chips ( PROMs ); 8 Kilobytes of RAM ; IBM's Basic Assembly Language ( BAL ); a hard drive ; a color display ; a printer output ; a 150 bit / s serial interface for connecting to a mainframe ; and even the world's first microcomputer front panel.

) A full-blown installation could consist of one server ( 16 MHz 68020, 8 MB of RAM, and a 200 MB hard disk ) and up to 64 workstations.

The 8052 was an enhanced version of the original 8051 that featured 256 bytes of internal RAM instead of 128 bytes, 8 KB of ROM instead of 4 KB, and a third 16-bit timer.

This consisted of a de-badged Electron plus a large expansion unit containing 32 KB of RAM, 48 KB of ROM, a Centronics printer port and a modem.

Of the 32 KB RAM, 3½ KB was allocated to the OS at startup and at least 10 KB was taken up by the display buffer in contiguous display modes.

When the boot loader detected a CP / M floppy, the Aster would reconfigure its internal memory architecture on the fly to optimally support CP / M with 60 KB free RAM for programs ( TPA ) and an 80 x 25 display.

The lack of RAM expansion offered by this solution was solved by a service in which the 16 KB RAM chips inside the base unit would be replaced by 64 KB RAM chips.

* RAM: 4 KB ( 2 6116 2Kx8 RAM ICs )

* RAM: 64 KB 120ns DRAM

* RAM: 1 KB ( Chips marked UPD2114LC ( U3 & U4 ) in circuit board picture-1024 X 4-bit SRAM, thus two chips for 1 KB of memory )

Super Agnus supports 2 MB of CHIP RAM, whereas the original Agnus / Fat Agnus and subsequent Fatter Agnus can address 512 KB and 1 MB, respectively.

* RAM: 32 KB

* Cartridge RAM: 128 KB

Acorn created a plug-in for the BBC Master range of computers containing a 80186-10 with 512 KB of RAM, the Master 512 system.

References to the ACE RAM usually include the separate 2 KB video memory, which is not available for user programs, thus leading to some confusion.

The 1 KB of user RAM was only partially decoded, so it echoed in the full 4 kB block address space it resides.

So a 16 KB space was used for ROM, VIDEO, and USER, leaving free a 16 KB space for RAM extension plus 32KB space free for all possible usages.

Leopard supports both PowerPC-and Intel x86-based Macintosh computers ; support for the G3 processor was dropped and the G4 processor required a minimum clock rate of 867 MHz, and at least 512 MB of RAM to be installed.

The minimum system requirements are given as 1 GB of RAM and 20 GB of hard disk space.

The computer must execute a relatively small program stored in ROM, along with the bare minimum of data needed to access the nonvolatile devices from which the operating system programs and data may be loaded into RAM.

The configuration is designed for devices with 160KB to 512KB total memory, which has a minimum of 160KB of ROM and 32KB of RAM available for the Java platform.

A fast 68030 in later PostScript interpreters, including the standard resolution LaserWriter IIntx, IIf and IIg ( also 300 dpi ), the higher resolution LaserWriter Pro 600 series ( usually 600 dpi, but limited to 300 dpi with minimum RAM installed ) and the very high resolution Linotronic imagesetters, the 200PS ( 1500 + dpi ) and 300PS ( 2500 + dpi ).

* RAM: 64 KB minimum, commonly 128 KB in Europe, 64 KB on Japanese computers, machines with up to 512 KB were made

The minimum Atom had 2 KB of RAM and 8 KB of ROM, with a fully loaded machine having 12 KB of each.

The minimum system requirements are a 486 processor and 8 MB of RAM.

The result is that the minimum needed is a Pentium1 or K5 PC with only 64 MB RAM and an IDE CD-ROM, or an Xbox game console.

It can be used on hardware with too little RAM to support embedded Linux, which currently needs a minimum of about 2 MB of RAM, not including application and service needs.

According to an article published in Sinclair User magazine ( which is likely to have been, at least in part, speculative ), Loki was to have a 7 MHz Z80H CPU, a minimum of 128 KiB of RAM and two custom chips providing much enhanced video and audio capabilities compared to the ZX Spectrum, but with a compatibility mode.

It runs on a minimum 386SX CPU with 8MB of RAM ( no hard disk required ).

* RAM required — 128 megabytes ( MB ) ( unofficially 64 MB minimum )

In particular, Microsoft Excel, which was written specifically for the Macintosh, required a minimum of 512 kB of RAM, but definitively solidified the Macintosh as a serious business computer.

For example, Lubuntu, which requires a minimum of 128 MB of RAM and a Pentium II processor, is a lightweight variant of Ubuntu, which requires a 1 GHz processor and 1 GB of RAM.

This is one of the techniques Foundation Imaging used to keep things like the polygon count to a minimum in order to produce the ground breaking animations with the limited amount of RAM that the Amiga Computers held.

It is capable of rendering several hundreds of simple 3D objects on a 386-33 with a minimum of two megabytes of RAM, and utilizes Gouraud shading for the airplanes.

In one experiment, 22 GB file compressed with minimum match length of 512 bytes and full 22 GB dictionary required just 2 GB of RAM for decompression.

When the product finally shipped after years of hype, users were dismayed to find that to install it required a machine with 2. 5MB of RAM minimum, and really needed 4MB to run well.

* 386SX CPU and 8MB RAM as a bare minimum

: tRAS is the minimum number of clock cycles needed to access a certain row of data in RAM between the data request and the precharge command.

The Amiga version of Striker ran on all Amiga systems with a minimum of 512K Chip RAM, including the A1200.