Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


C64 maze generator T-shirts!

see details
Ready prompt T-shirts!

see details
Spiral program T-shirts!

see details
BASIC code T-shirts!

see details
Pixel Deer T-shirts!

see details
Shooting gallery T-shirts!

see details
Breakout T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details
Pak Pak Monster T-shirts!

see details

S > SONY  > Hit-Bit 55   

Hit-Bit 55

The Hit-Bit 55 was a classic MSX1 computer. It was very similar to the Hit-Bit 75. Its most distinctive sign was its flat but good quality keyboard. It was one of the few MSX with the Philips VG-8000 to have a low-cost keyboard.

Unlike the HB-75, it had only 16 KB RAM. There was a built-in software (scheduler and memo) which was a kind of cut-down version of the one built-in the HB-75, program size was only 8 KB against 16 KB on the HB-75, it seems that some version had the 16 KB version though. To save files made with this apps, a 4K S-RAM non-volatile cartridge was used (called HBI-55).

The Hit-Bit 55 was clearly marketed as the low-range MSX model of the Hit-Bit serie. It was also available in a red and black cases.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.
NAME  Hit-Bit 55
TYPE  Home Computer
YEAR  1984
BUILT IN LANGUAGE  Microsoft Extended Basic (MSX Basic V1.0) + Agenda software
KEYBOARD  Calculator keyboard. 75 keys, including 5 function keys, cursor keys, HOME, STOP, INS, DEL, RESET, BS, SELECT, CODE, GRAPH, CAP, SHIFT (x2), TAB, CTRL, RETURN, ESC
CPU  Zilog Z80A
SPEED  3.58 MHz
CO-PROCESSOR  Video chip compatible with the Texas Instruments TMS 9918/A or TMS 9928/A (Japan : 60 Hz) or TMS 9929/A (Europe : 50 Hz)
RAM  16 KB
ROM  32 KB BASIC/BIOS ( MSX BASIC V1.0) + 8 KB/16 KB (built-in software)
TEXT MODES  Mode 0 : 40 x 24
Mode 1 : 32 x 24
GRAPHIC MODES  Mode 2 : 256 x 192 with 16 colors (Hires mode)
Mode 3 : 64 x 48 with 16 colors (Multi colour mode)
32 sprites
SOUND  General Instruments AY-3-8910 Programmable Sound Generator
3 channels, 8 octaves
I/O PORTS  2 joystick sockets, 2 cardridge slots, Tape-recorder plug (1200/2400 bauds), RGB video output (or composite video + sound output), Centronics interface
POWER SUPPLY  Built-in power supply unit
PRICE  55,800 yen (Japan, 1984)

retro computing t-shirts and goodies
3D Cubes
BASIC code
C64 maze generator
Pak Pak Monster
Pixel adventure
Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -