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The storage tube display allows the screen to retain images drawn to it, eliminating the need for frame-buffer memory. This allows the resolution to be as high as the hardware can handle, which is 1024 by 1024 logically (i.e. DAC resolution) but limited by the physical layout of the screen to 1024 by 780. It also allows the machine to dedicate all of its memory to the programs running on it (as opposed to partitioning off a section for the buffer), an important consideration at the time when memory was expensive and scarce. | The storage tube display allows the screen to retain images drawn to it, eliminating the need for frame-buffer memory. This allows the resolution to be as high as the hardware can handle, which is 1024 by 1024 logically (i.e. DAC resolution) but limited by the physical layout of the screen to 1024 by 780. It also allows the machine to dedicate all of its memory to the programs running on it (as opposed to partitioning off a section for the buffer), an important consideration at the time when memory was expensive and scarce. | ||
Released in 1978, the 4952 came with a full 32 kB of RAM for $9,795 ( | Released in 1978, the 4952 came with a full 32 kB of RAM for $9,795 (2020 value: $39,100) and could be expanded to 64 kB for another $1,995 (2020: $7,960) for a total cost of $11,790 (2020: $47,060). | ||
The '''4054''' is a version of the 4052 built around the 19" screen from the [[4014]] terminal rather than the 11" screen from the [[4012]], increasing display resolution to 4,096 by 3,072. The 4054 also had an option to display a limited amount of refreshed graphics that used a [[wikipedia:Signetics 8X300|Signetics 8X300]], an early RISC-like microprocessor. | The '''4054''' is a version of the 4052 built around the 19" screen from the [[4014]] terminal rather than the 11" screen from the [[4012]], increasing display resolution to 4,096 by 3,072. The 4054 also had an option to display a limited amount of refreshed graphics that used a [[wikipedia:Signetics 8X300|Signetics 8X300]], an early RISC-like microprocessor. | ||