Motorola M500 User Manual download pdf (Page 11)

M500 180 Page 9

Motorola 68000 microprocessor (a more powerful processor than the Z80).

Hence, a Motorola 68000 Assembler will be needed for these calculators.

The beneﬁt of Basic programs is their portability between TI calculator

models. The beneﬁt of machine code programs is their greater speed of

execution.

Hints and tips

When connecting the black serial communications lead between a PC and

a TI calculator I found that TI-Graph Link defaulted to the COM1: serial

port. If, like my PC, a serial mouse is connected to COM1: then you might

have diﬃculty getting TI-Graph Link to switch to a diﬀerent COM port.

This problem occurs despite there being the option, within the Link menu

selection, of changing the default COM port. However, I have only used this

software on Windows NT4.0 operating system, and therefore this problem

may be speciﬁc to NT. Fortunately, NT is not fussy about which COM port

is used by the serial mouse.

Under the NT4.0 operating system you have the option of setting up

user accounts within particular inbuilt ‘user groups’. Each of these user

groups has a diﬀerent level of access privileges under NT. From a security

point of view, particularly with regard to virus programs, I have always

preferred to use a personal account within the ‘Power User’ group. Virtual

TI worked perfectly with this account under NT Service Pack 5. However,

when I installed Service Pack 6a a ‘Failed to set data for LastEmuVersion’

error message appeared when I tried to run VTI. Since then VTI will only

run under an Administrator account.

A mechanical engineer, a chemical engineer and a software engineer were in

a car when it suddenly stopped.

Mechanical engineer – “I think it must be the timing chain. I’ll strip

down the engine and ﬁx it.”

Chemical Engineer – “No, I think it’s the petrol. I’ll take a sample and

analyse it.”

Software Engineer – “I’ve no idea what’s wrong, but let’s try closing

the windows, turning everything oﬀ, turning everything back on again and

then re-opening the windows.”

[Sent by Tony Huntington.]

A computer is like an air-conditioner. It stops working properly if you open

windows.

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Motorola M500 User Manual Page 11