The SVI-728 was the first home computer

Home computer

Home computers were a class of microcomputers entering the market in 1977, and becoming increasingly common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a single nontechnical user...

 from Spectravideo

Spectravideo

Spectravideo, or SVI, was a U.S. computer company founded in 1981 as "SpectraVision" by Harry Fox. They originally made video games for Atari 2600 and VIC-20. Some of their computers were MSX-compliant or IBM PC compatible...

 that complied fully with the MSX

MSX

MSX was the name of a standardized home computer architecture in the 1980s conceived by Kazuhiko Nishi, then Vice-president at Microsoft Japan and Director at ASCII Corporation...

 home computer specification. It was introduced in 1985. The design is virtually identical to that of the earlier SV-328

SV-328

The SV-328 is an 8-bit home computer introduced by Spectravideo in June 1983. It was the business-targeted model of the Spectravideo range, sporting a rather crowded full-travel keyboard with numeric keypad. It had 80 kB RAM , a respectable amount for its time...

, which did not comply fully with the MSX standard.

The SVI-738

SVI-738

The Spectravideo SVI-738 X'Press was an MSX1 compatible home computer manufactured by Spectravideo from 1985. Although compatible with the MSX 1.0 standard, it incorporates several extensions to the standard ; many are hardware-compatible with the MSX 2.0 standard but the system as a whole is not,...

 is a portable version of this computer.

Technical specifications

Microprocessor

Microprocessor

A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...

• Zilog
  Zilog
  Zilog, Inc., previously known as ZiLOG , is a manufacturer of 8-bit and 24-bit microcontrollers, and is most famous for its Intel 8080-compatible Z80 series.-History:...
  
   Z80A with a clockspeed of 3.56 MHz.

Memory

Computer storage

Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers....

• ROM: 32 KB
• RAM: 64 KB (expandable to 256 KB)
• VRAM: 16 KB

Video

• Graphical processor
  Graphics processing unit
  A graphics processing unit or GPU is a specialized circuit designed to rapidly manipulate and alter memory in such a way so as to accelerate the building of images in a frame buffer intended for output to a display...
  
  : Texas Instruments
  Texas Instruments
  Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
  
   TMS9918A/TMS9929 (NTSC/PAL)
• Graphical resolution
  Image resolution
  Image resolution is an umbrella term that describes the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail....
  
  : 256 x 192 pixels
• text mode
  Text mode
  Text mode is a kind of computer display mode in which the content of the screen is internally represented in terms of characters rather than individual pixels. Typically, the screen consists of a uniform rectangular grid of character cells, each of which contains one of the characters of a...
  
  s: 40 characters x 24 lines and 32 characters x 24 lines
• colors: 16
• sprites: 32

Sound

• General Instrument
  General Instrument
  General Instrument was an electronics manufacturer based in Horsham, PA specializing in semiconductors and cable television equipment. The company was active until 1997, when it split into which was later acquired by Vishay Intertechnology in 2001, CommScope and NextLevel Systems General...
  
   AY-3-8910-soundchip
• 3 sound channels
• 1 noise channels
• 1 envelope controller

Connectors

• 1 data recorder/Cassette deck
  Cassette deck
  A cassette deck is a type of tape recorder for playing or recording audio compact cassettes. A deck was formerly distinguished from a recorder as being part of a stereo component system, while a recorder had a self-contained power amplifier...
  
  
• 2 joystick
  Joystick
  A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. Joysticks, also known as 'control columns', are the principal control in the cockpit of many civilian and military aircraft, either as a center stick or...
  
  s
• 1 cartridge
• 1 Super Expander
• 1 disk station