This article has multiple issues. Please helpimprove it or discuss these issues on thetalk page.(Learn how and when to remove these messages) This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "EOS" 8-bit operating system – news ·newspapers ·books ·scholar ·JSTOR(January 2022) (Learn how and when to remove this message) This articleprovides insufficient context for those unfamiliar with the subject. Please helpimprove the article byproviding more context for the reader.(January 2022) (Learn how and when to remove this message) (Learn how and when to remove this message)

EOS is the built-in operating system of theColeco Adam. There are bindings inhigh-level programming languages likeBASIC.^[1]

The functions are grouped into categories as follows.^[3]

• eos_init
• eos_hard_init
• eos_hard_reset_net
• eos_delay_after_hard_reset
• eos_synchronize_clocks
• eos_scan_for_devices
• eos_relocate_pcb
• eos_soft_init
• eos_exit_to_smartwriter
• eos_switch_memory_banks

• eos_console_init
• eos_console_display_regular
• eos_console_display_special

• eos_print_character
• eos_print_buffer
• eos_printer_status
• eos_start_print_character
• eos_end_print_character

• eos_keyboard_status
• eos_read_keyboard
• eos_start_read_keyboard
• eos_end_read_keyboard

• eos_file_manager_init
• eos_check_directory_for_file
• eos_find_file_1
• eos_find_file_2
• eos_find_file_in_fcb
• eos_check_file_mode
• eos_make_file
• eos_update_file_in_directory
• eos_open_file
• eos_close_file
• eos_read_file
• eos_write_file
• eos_trim_file
• eos_initialize_directory
• eos_reset_file
• eos_get_date^[4]
• eos_put_date
• eos_delete_file
• eos_rename_file

• eos_find_pcb
• eos_find_dcb
• eos_request_device_status
• eos_get_device_status
• eos_soft_reset_device
• eos_soft_reset_keyboard
• eos_soft_reset_printer
• eos_read_block
• eos_read_one_block
• eos_start_read_one_block
• eos_end_read_one_block
• eos_write_block
• eos_write_one_block
• eos_start_write_one_block
• eos_end_write_one_block
• eos_start_read_character_device
• eos_end_read_character_device
• eos_read_character_device
• eos_start_write_character_device
• eos_end_write_character_device
• eos_write_character_device

• eos_set_vdp_ports
• eos_set_vram_table_address
• eos_load_ascii_in_vdp
• eos_put_ascii_in_vdp
• eos_write_vram
• eos_read_vram
• eos_put_vram
• eos_get_vram
• eos_write_vdp_register
• eos_read_vdp_register
• eos_fill_vram
• eos_calculate_pattern_position
• eos_point_to_pattern_position
• eos_write_sprite_table

• eos_read_game_controller^[5]
• eos_update_spinner

• eos_sound_init
• eos_sound_off
• eos_start_sound
• eos_play_sound
• eos_end_sound

• eos_decrement_low_nibble
• eos_decrement_high_nibble
• eos_move_high_nibble_to_low_nibble
• eos_add_a_to_hl

• Technical Reference Manual chapter 3
• EOS-5 source code
• Boot code,Forum

Thisoperating-system-related article is astub. You can help Wikipedia byadding missing information.

• v
• t
• e

• Disk operating systems
• Discontinued operating systems
• 1983 software
• Operating system stubs

• Articles needing additional references from January 2022
• All articles needing additional references
• Wikipedia articles needing context from January 2022
• All Wikipedia articles needing context
• All pages needing cleanup
• Articles with multiple maintenance issues
• Articles with short description
• Short description matches Wikidata
• All stub articles