Atari 400 User Manual

104 User's Handbook to the Atari 400/ 800 Computers
cos
The COS function returns the cosine of its argument. The
argument will be assumed in radians unless a DEG statement
precedes the
COS statement.
CSAVE (CS.)
CONFIGURATION
X = COSta)
EXAMPLE
10 DEG
20 X = COS(180)
30 PRINT X
RUN
-1
The CSAVE command is used to copy the program in the
computer's memory on cassette tape. Only CLOAD can be used
to read a program that was stored using CSAVE.
When the tape is properly positioned, enter CSA VE . The tone
will sound twice as a signal to press the cassette recorder's PLAY
and RECORD keys, followed by pressing RETURN on the Atari
keyboard.
If channel 7 is open for another device, an error will occur , but
the channel will be closed. A repeat of CSAVE wil l then be
successful.
CONFIGURATION
CSAVE
EXAMPLE
CSAVE

Atari 400 Specifications

General

Manufacturer	Atari
Model	400
Type	Home Computer
Release Year	1979
CPU	MOS Technology 6502
CPU Speed	1.79 MHz
ROM	10 KB
Operating System	Atari OS
Keyboard	Membrane keyboard
RAM	8 KB (expandable to 48 KB)
Graphics	ANTIC and GTIA chips
Sound	4 channels
Display	RF output for connection to TV
Storage	Optional cassette tape drive or floppy disk drive
Ports	Cartridge
Display Resolution	320x192 (16 colors)