Laser 110

Laser 110The Laser110 was the first computer that Vtech produced back in 1983, and was part of a series range of Laser 100/200/300. The Laser 100/110 was the first attempt to enter the computer market and compete with the other companies. The Price tag was relatively cheap, and for what it had to offer, it was good value for money. As an introduction computer was very good and made a hit back then in the 80’s. The only drawbacks with these machines are the rubber keyboard that made it uncomfortable to type, and monochrome display. The interfaces and memory expansion are all interchangeable between the other series as the pin-outs where identical, you can check this under the download manual section. The only difference between each series model was memory, keyboard, case cosmetics and graphical display resolution, but software was not interchangeable between different series models due to memory and display resolution. The ROM was a clone of the TRS-80 Model 1 with slight modifications and basic interpreter very similar to Microsoft Basic.

Laser 110
UK: £88 US:$90
V034944
1983
Zilog Z80A running at a frequency of 3.25Mhz
16K bytes Rom containing Basic, very similar to Microsoft Basic. 4K bytes Ram expandable to 16K bytes or 64K bytes through expansion Memory Port.
White and Brown coloured case with light brown keyboard keys. The computer is very small and the keyboard is a QWERTY style keyboard but with rubber keys which make typing fairly difficult especially while entering type-in programs.
Motorola 6847 video processor capable of displaying the following resolution modes:
Text mode 32×16
Graphic mode128x64
both resolutions use Monochrome colour
1 Channel sound beeper capable of producing different sounds by altering the pitch of the frequency sound.
1x Expansion Memory Port 44 pin male edge connector
1x Peripheral Port 30 pin male edge Connector
1x Tape port 3.5mm Jack female
1x RF TV out ch3 or ch4 selectable by switch
1x Composite Video out 75 Ohms 1V P-P
Standard 9V Power Supply 1000ma
Dimensions 290mm x 170mm x 40mm (W x L x H) Weight Approx 800g
More than 150,000 units

The Club currently owns a Laser 110 computer boxed, complete with manuals in German language, expansion memory for 16Kbytes also boxed with manual, power supply and cables. The club managed to get this machine from a computer shop. The shop keeper told us that it never was switched on, but fortunately when we plugged it in it worked perfectly.


 

 

Composite Video Port

Phono Plug Female
chassis mount

Pin Name Dir Desc
1 COMPOSITE OUT Video out 75 Ohms
2 GND N/A Ground
 

 

Memory Expansion Port

44 pin edge connector
at the computer

Pin Name Dir Desc
1 GND N/A Ground
2 /RESET IN Reset Active Low
3 A10 OUT Address Bit 10
4 A9 OUT Address Bit 9
5 A8 OUT Address Bit 8
6 A7 OUT Address Bit 7
7 A6 OUT Address Bit 6
8 A5 OUT Address Bit 5
9 A4 OUT Address Bit 4
10 A3 OUT Address Bit 3
11 A2 OUT Address Bit 2
12 A1 OUT Address Bit 1
13 D2 IN/ OUT Data Bit 2
14 D7 IN/ OUT Data Bit 7
15 /RFSH IN Refresh Active Low
16 /MI IN Mem Int Active Low
17 /WAIT IN Wait Active Low
18 NMI IN/ OUT Non Maskable Interrupt Ac
19 /RD IN Read Mem Active Low
20 /IORQ IN/ OUT IO Request Active Low
21 +5V OUT +5V Supply
22 N/C N/A No Connection
A GND N/A Ground
B A11 OUT Address Bit 11
C A12 OUT Address Bit 12
D A13 OUT Address Bit 13
E A14 OUT Address Bit 14
F A15 OUT Address Bit 15
H CLK OUT Frequency Clock
J D4 IN/ OUT Data Bit 4
K D3 IN/ OUT Data Bit 3
L D5 IN/ OUT Data Bit 5
M D6 IN/ OUT Data Bit 6
N N/C N/A No Connection
P A0 OUT Address Bit 0
R D0 IN/ OUT Data Bit 0
S D1 IN/ OUT Data Bit 1
T /INT IN Interrupt Active Low
U /HALT IN Halt CPU Active Low
V /MERQ IN MEM Request Active Low
W /WR IN Write Mem Active Low
X NC N/A No connection
Y +9V OUT +9V Supply
Z N/C N/A No Connection
 

 

Peripheral Port

30 pin Edge Connector
at the computer

Pin Name Dir Desc
1 N/C N/A No Connection
2 N/C N/A No Connection
3 N/C N/A No Connection
4 +5V OUT +5V Supply
5 /IO REQ IN/ OUT IO Request Active Low
6 D3 IN/ OUT Data Bit 3
7 D6 IN/ OUT Data Bit 6
8 D2 IN/ OUT Data Bit 2
9 D0 IN/ OUT Data Bit 0
10 A5 OUT Address Bit 5
11 A2 OUT Address Bit 2
12 A6 OUT Address Bit 6
13 A3 OUT Address Bit 3
14 /WR IN Mem Write Active Low
15 GND N/A Ground
16 N/C N/A No Connection
17 N/C N/A No Connection
18 N/C N/A No Connection
19 +5V OUT +5V Supply
20 N/C N/A No Connection
21 D4 IN/ OUT Data Bit 4
22 D5 IN/ OUT Data Bit 5
23 D7 IN/ OUT Data Bit 7
24 D1 IN/ OUT Data Bit 1
25 /RD IN Mem Read Active Low
26 A1 OUT Address Bit 1
27 A4 OUT Address Bit 4
28 A0 OUT Address Bit 0
29 A7 OUT Address Bit 7
30 GND N/A Ground
 

 

Power Port

Power Jack Plug chassis mount

Pin Name Dir Desc
1 GND N/A Ground
2 +9V IN +9V Supply 1A Max

RF Port

Phono Plug Female chassis mount

Pin Name Dir Desc
1 RF OUT RF OUT CH3/4 VHF 75Ohms
2 GND N/A Ground
 

 

Tape Port

35MM stereo Jack Plug Female

Pin Name Dir Desc
1 GND N/A Ground
2 Tape OUT OUT Tape OUT to Mic of Record
3 Tape IN IN Tape IN to earphone of Record